v3.26.1
Shareholder Report
 6 Months Ended
Mar. 31, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name TETON WESTWOOD FUNDS
Entity Central Index Key 0000796229
Entity Investment Company Type N-1A
Document Period End Date Mar. 31, 2026
C000002934  
Shareholder Report [Line Items]  
Fund Name Keeley Small Cap Fund
Class Name Class AAA
Trading Symbol WESCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Keeley Small Cap Fund - Class AAA (the "Fund") for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You may find additional information about the Fund at https://gabelli.com/ticker/WESCX/. You may also request  information by contacting us at 800-GABELLI (800-422-3554).
Additional Information Phone Number 800-GABELLI (800-422-3554)
Additional Information Website https://gabelli.com/ticker/WESCX/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Keeley Small Cap Fund - Class AAA
$68
1.25%
Expenses Paid, Amount $ 68
Expense Ratio, Percent 1.25%
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results.
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
Keeley Small Cap Fund - Class AAA
Russell 2000 Index
Russell 2000 Value Index
03/16
10,000
10,000
10,000
03/17
13,379
12,622
12,937
03/18
14,991
14,110
13,601
03/19
14,904
14,399
13,624
03/20
10,720
10,945
9,586
03/21
22,038
21,326
18,889
03/22
23,945
20,091
19,516
03/23
21,260
17,759
16,986
03/24
25,310
21,259
20,171
03/25
24,775
20,407
19,542
03/26
35,185
25,655
25,031
Average Annual Return [Table Text Block]
Table Summary
6 months
1 Year
5 Year
10 Year
Keeley Small Cap Fund - Class AAA
18.55%
42.02%
9.81%
13.41%
Russell 2000 Index
3.10%
25.72%
3.77%
9.88%
Russell 2000 Value Index
8.37%
28.09%
5.79%
9.61%
No Deduction of Taxes [Text Block] The table and graph presented above do not reflect the deduction of taxes a shareholder would pay on Fund distributions or the redemption of Fund shares.
AssetsNet $ 86,007,468
Holdings Count | Holding 89
Advisory Fees Paid, Amount $ 219,490
InvestmentCompanyPortfolioTurnover 12.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$86,007,468
  • Number of Portfolio Holdings89
  • Portfolio Turnover Rate12%
  • Management Fees$219,490
Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
NetScout Systems Inc.
3.3%
Advanced Energy Industries Inc.
2.6%
Flowserve Corp.
2.6%
AAR Corp.
2.6%
MKS Inc.
2.5%
OPENLANE Inc.
2.4%
TTM Technologies Inc.
2.3%
MYR Group Inc.
2.2%
IMAX Corp.
2.2%
Ultra Clean Holdings Inc.
2.2%

Portfolio Weighting (% of net assets)

Table Summary
Common Stocks
94.5%
U.S. Government Obligations
5.1%
Other Assets and Liabilities (Net)
0.4%

Industry Allocation (% of net assets)

Bar Graph showing Allocation by Industry
Table Summary
Industry Weighting
.
Banking
12.1%
Semiconductors
11.0%
Diversified Industrial
7.1%
Health Care
7.0%
Computer Software and Services
5.7%
Energy and Utilities
5.5%
Electronics
5.4%
Retail
5.3%
Other Industry sectors
40.5%
Other Assets and Liabilities (Net)
0.4%
Material Fund Change [Text Block]
Updated Prospectus Phone Number 800-GABELLI (800-422-3554)
Updated Prospectus Email Address <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: justify; text-align-last: left; white-space-collapse: preserve-breaks;">info@gabelli.com</span>
Updated Prospectus Web Address https://gabelli.com/ticker/WESCX/
C000002933  
Shareholder Report [Line Items]  
Fund Name Keeley Small Cap Fund
Class Name Class C
Trading Symbol WWSCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Keeley Small Cap Fund - Class C (the "Fund") for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You may find additional information about the Fund at https://gabelli.com/ticker/WWSCX/. You may also request  information by contacting us at 800-GABELLI (800-422-3554).
Additional Information Phone Number 800-GABELLI (800-422-3554)
Additional Information Website https://gabelli.com/ticker/WWSCX/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Keeley Small Cap Fund - Class C
$109
2.00%
Expenses Paid, Amount $ 109
Expense Ratio, Percent 2.00%
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results.
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
Keeley Small Cap Fund - Class C
Keeley Small Cap Fund - Class C (includes sales charge)
Russell 2000 Index
Russell 2000 Value Index
03/16
10,000
10,000
10,000
10,000
03/17
13,283
13,183
12,622
12,937
03/18
14,763
14,652
14,110
13,601
03/19
14,576
14,466
14,399
13,624
03/20
10,408
10,330
10,945
9,586
03/21
21,227
21,067
21,326
18,889
03/22
22,896
22,724
20,091
19,516
03/23
20,169
20,017
17,759
16,986
03/24
23,829
23,650
21,259
20,171
03/25
23,158
22,984
20,407
19,542
03/26
32,651
32,405
25,655
25,031
Average Annual Return [Table Text Block]
Table Summary
6 months
1 Year
5 Year
10 Year
Keeley Small Cap Fund - Class C
18.16%
40.99%
8.99%
12.56%
Keeley Small Cap Fund - Class C (includes sales charge)
17.16%
39.99%
8.99%
12.56%
Russell 2000 Index
3.10%
25.72%
3.77%
9.88%
Russell 2000 Value Index
8.37%
28.09%
5.79%
9.61%
No Deduction of Taxes [Text Block] The table and graph presented above do not reflect the deduction of taxes a shareholder would pay on Fund distributions or the redemption of Fund shares.
AssetsNet $ 86,007,468
Holdings Count | Holding 89
Advisory Fees Paid, Amount $ 219,490
InvestmentCompanyPortfolioTurnover 12.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$86,007,468
  • Number of Portfolio Holdings89
  • Portfolio Turnover Rate12%
  • Management Fees$219,490
Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
NetScout Systems Inc.
3.3%
Advanced Energy Industries Inc.
2.6%
Flowserve Corp.
2.6%
AAR Corp.
2.6%
MKS Inc.
2.5%
OPENLANE Inc.
2.4%
TTM Technologies Inc.
2.3%
MYR Group Inc.
2.2%
IMAX Corp.
2.2%
Ultra Clean Holdings Inc.
2.2%

Portfolio Weighting (% of net assets)

Table Summary
Common Stocks
94.5%
U.S. Government Obligations
5.1%
Other Assets and Liabilities (Net)
0.4%

Industry Allocation (% of net assets)

Bar Graph showing Allocation by Industry
Table Summary
Industry Weighting
.
Banking
12.1%
Semiconductors
11.0%
Diversified Industrial
7.1%
Health Care
7.0%
Computer Software and Services
5.7%
Energy and Utilities
5.5%
Electronics
5.4%
Retail
5.3%
Other Industry sectors
40.5%
Other Assets and Liabilities (Net)
0.4%
Material Fund Change [Text Block]
Updated Prospectus Phone Number 800-GABELLI (800-422-3554)
Updated Prospectus Email Address <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: justify; text-align-last: left; white-space-collapse: preserve-breaks;">info@gabelli.com</span>
Updated Prospectus Web Address https://gabelli.com/ticker/WWSCX/
C000061068  
Shareholder Report [Line Items]  
Fund Name Keeley Small Cap Fund
Class Name Class I
Trading Symbol WWSIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Keeley Small Cap Fund - Class I (the "Fund") for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You may find additional information about the Fund at https://gabelli.com/ticker/WWSIX/. You may also request  information by contacting us at 800-GABELLI (800-422-3554).
Additional Information Phone Number 800-GABELLI (800-422-3554)
Additional Information Website https://gabelli.com/ticker/WWSIX/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Keeley Small Cap Fund - Class I
$55
1.00%
Expenses Paid, Amount $ 55
Expense Ratio, Percent 1.00%
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results.
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
Keeley Small Cap Fund - Class I
Russell 2000 Index
Russell 2000 Value Index
03/16
500,000
500,000
500,000
03/17
670,669
631,100
646,850
03/18
753,079
705,507
680,033
03/19
750,507
719,970
681,189
03/20
541,312
547,249
479,285
03/21
1,115,543
1,066,314
944,431
03/22
1,215,144
1,004,575
975,786
03/23
1,081,906
887,944
849,324
03/24
1,290,997
1,062,957
1,008,572
03/25
1,266,647
1,020,333
977,105
03/26
1,803,766
1,282,762
1,251,574
Average Annual Return [Table Text Block]
Table Summary
6 months
1 Year
5 Year
10 Year
Keeley Small Cap Fund - Class I
18.68%
42.40%
10.09%
13.69%
Russell 2000 Index
3.10%
25.72%
3.77%
9.88%
Russell 2000 Value Index
8.37%
28.09%
5.79%
9.61%
No Deduction of Taxes [Text Block] The table and graph presented above do not reflect the deduction of taxes a shareholder would pay on Fund distributions or the redemption of Fund shares.
AssetsNet $ 86,007,468
Holdings Count | Holding 89
Advisory Fees Paid, Amount $ 219,490
InvestmentCompanyPortfolioTurnover 12.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$86,007,468
  • Number of Portfolio Holdings89
  • Portfolio Turnover Rate12%
  • Management Fees$219,490
Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
NetScout Systems Inc.
3.3%
Advanced Energy Industries Inc.
2.6%
Flowserve Corp.
2.6%
AAR Corp.
2.6%
MKS Inc.
2.5%
OPENLANE Inc.
2.4%
TTM Technologies Inc.
2.3%
MYR Group Inc.
2.2%
IMAX Corp.
2.2%
Ultra Clean Holdings Inc.
2.2%

Portfolio Weighting (% of net assets)

Table Summary
Common Stocks
94.5%
U.S. Government Obligations
5.1%
Other Assets and Liabilities (Net)
0.4%

Industry Allocation (% of net assets)

Bar Graph showing Allocation by Industry
Table Summary
Industry Weighting
.
Banking
12.1%
Semiconductors
11.0%
Diversified Industrial
7.1%
Health Care
7.0%
Computer Software and Services
5.7%
Energy and Utilities
5.5%
Electronics
5.4%
Retail
5.3%
Other Industry sectors
40.5%
Other Assets and Liabilities (Net)
0.4%
Material Fund Change [Text Block]
Updated Prospectus Phone Number 800-GABELLI (800-422-3554)
Updated Prospectus Email Address <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: justify; text-align-last: left; white-space-collapse: preserve-breaks;">info@gabelli.com</span>
Updated Prospectus Web Address https://gabelli.com/ticker/WWSIX/
C000002931  
Shareholder Report [Line Items]  
Fund Name Keeley Small Cap Fund
Class Name Class A
Trading Symbol WWSAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Keeley Small Cap Fund - Class A (the "Fund") for the period of October 1, 2025 to March 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You may find additional information about the Fund at https://gabelli.com/ticker/WWSAX/. You may also request  information by contacting us at 800-GABELLI (800-422-3554).
Additional Information Phone Number 800-GABELLI (800-422-3554)
Additional Information Website https://gabelli.com/ticker/WWSAX/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Keeley Small Cap Fund - Class A
$68
1.25%
Expenses Paid, Amount $ 68
Expense Ratio, Percent 1.25%
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results.
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
Keeley Small Cap Fund - Class A
Keeley Small Cap Fund - Class A (includes sales charge)
Russell 2000 Index
Russell 2000 Value Index
03/16
10,000
10,000
10,000
10,000
03/17
13,351
12,817
12,622
12,937
03/18
14,918
13,748
14,110
13,601
03/19
14,796
13,090
14,399
13,624
03/20
10,616
9,017
10,945
9,586
03/21
21,794
17,770
21,326
18,889
03/22
23,675
18,532
20,091
19,516
03/23
21,023
15,797
17,759
16,986
03/24
25,024
18,052
21,259
20,171
03/25
24,484
16,956
20,407
19,542
03/26
34,792
23,131
25,655
25,031
Average Annual Return [Table Text Block]
Table Summary
6 months
1 Year
5 Year
10 Year
Keeley Small Cap Fund - Class A
18.57%
42.10%
9.81%
13.28%
Keeley Small Cap Fund - Class A (includes sales charge)
13.83%
36.41%
8.91%
12.82%
Russell 2000 Index
3.10%
25.72%
3.77%
9.88%
Russell 2000 Value Index
8.37%
28.09%
5.79%
9.61%
No Deduction of Taxes [Text Block] The table and graph presented above do not reflect the deduction of taxes a shareholder would pay on Fund distributions or the redemption of Fund shares.
AssetsNet $ 86,007,468
Holdings Count | Holding 89
Advisory Fees Paid, Amount $ 219,490
InvestmentCompanyPortfolioTurnover 12.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$86,007,468
  • Number of Portfolio Holdings89
  • Portfolio Turnover Rate12%
  • Management Fees$219,490
Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
NetScout Systems Inc.
3.3%
Advanced Energy Industries Inc.
2.6%
Flowserve Corp.
2.6%
AAR Corp.
2.6%
MKS Inc.
2.5%
OPENLANE Inc.
2.4%
TTM Technologies Inc.
2.3%
MYR Group Inc.
2.2%
IMAX Corp.
2.2%
Ultra Clean Holdings Inc.
2.2%

Portfolio Weighting (% of net assets)

Table Summary
Common Stocks
94.5%
U.S. Government Obligations
5.1%
Other Assets and Liabilities (Net)
0.4%

Industry Allocation (% of net assets)

Bar Graph showing Allocation by Industry
Table Summary
Industry Weighting
.
Banking
12.1%
Semiconductors
11.0%
Diversified Industrial
7.1%
Health Care
7.0%
Computer Software and Services
5.7%
Energy and Utilities
5.5%
Electronics
5.4%
Retail
5.3%
Other Industry sectors
40.5%
Other Assets and Liabilities (Net)
0.4%
Material Fund Change [Text Block]
Updated Prospectus Phone Number 800-GABELLI (800-422-3554)
Updated Prospectus Email Address <span style="box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; font-weight: 400; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: justify; text-align-last: left; white-space-collapse: preserve-breaks;">info@gabelli.com</span>
Updated Prospectus Web Address https://gabelli.com/ticker/WWSAX/
C000002912  
Shareholder Report [Line Items]  
Fund Name Balanced Fund
Class Name Class AAA
Trading Symbol WEBAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about TETON Westwood Balanced Fund - Class AAA (the "Fund") for the period of October 1, 2025 to March 31, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.tetonadv.com/teton-westwood-funds/tw-balanced/. You can also request this information by contacting us at (800) 422-3554.
Additional Information Phone Number (800) 422-3554
Additional Information Website https://www.tetonadv.com/teton-westwood-funds/tw-balanced/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Balanced Fund - Class AAA
$82
1.65%
Expenses Paid, Amount $ 82
Expense Ratio, Percent 1.65%
Factors Affecting Performance [Text Block]

How did the Fund perform?

For the six month period ended March 31, 2026, the Teton Westwood Balanced Fund outperformed its broad-based benchmark, the S&P 500 Index, and underperformed its comparatives, the Bloomberg US Government / Credit Bond Index and 60% S&P 500 + 40% Bloomberg Gov't / Credit Bond Index. the Amid increased volatility in equity and bond markets, the Fund benefitted from its equity investments, which showed gains in the period as the market tilted away from growth names amid concerns about capital expenditures for artificial intelligence. Convertible securities also contributed to returns.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results. 
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
TETON Westwood Balanced Fund - Class AAA
S&P 500 Index
60% S&P 500 + 40% Bloomberg Gov't / Credit Bond Index
Bloomberg US Government / Credit Bond Index
3/16
10,000
10,000
10,000
10,000
3/17
10,840
11,717
11,152
10,054
3/18
11,856
13,356
12,267
10,193
3/19
12,383
14,625
12,945
10,649
3/20
11,850
13,604
12,906
11,695
3/21
14,677
21,270
17,730
11,796
3/22
15,831
24,599
19,271
11,342
3/23
14,759
22,697
17,330
10,796
3/24
16,784
29,479
20,834
10,984
3/25
17,374
31,912
21,963
11,496
3/26
18,497
37,592
24,913
11,939
AssetsNet $ 30,168,006
Holdings Count | Holding 109
Advisory Fees Paid, Amount $ 121,101
InvestmentCompanyPortfolioTurnover 19.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$30,168,006
  • Number of Portfolio Holdings109
  • Portfolio Turnover Rate19%
  • Management Fees$121,101
Holdings [Text Block]

Portfolio Weighting (% of net assets)

Table Summary
Common Stocks
61.8%
Corporate Bonds
24.4%
U.S. Government Obligations
7.1%
Convertible Corporate Bonds
4.0%
Mandatory Convertible Securities
1.0%
Foreign Government Obligations
0.9%
Short Term Investment
0.2%
Other Assets and Liabilities (Net)
0.6%

Industry Allocation (% of net assets)

Group By Industry Chart
Table Summary
Industry Weighting
.
Financial Services
17.0%
Semiconductors
8.1%
U.S. Government Obligations
7.1%
Health Care
7.1%
Diversified Industrial
6.6%
Energy: Oil
5.8%
Computer Software and Services
5.4%
Food and Beverage
3.8%
Other Industry sectors
38.5%
Other Assets and Liabilities (Net)
0.6%
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
U.S. Treasury Bonds
3.9%
Amazon.com Inc.
3.6%
NVIDIA Corp.
3.5%
U.S. Treasury Notes
3.3%
Broadcom Inc.
2.0%
NextEra Energy Inc.
1.6%
Deere & Co.
1.6%
CSX Corp.
1.5%
Johnson & Johnson
1.5%
Thermo Fisher Scientific Inc.
1.5%
Material Fund Change [Text Block]
C000002914  
Shareholder Report [Line Items]  
Fund Name Balanced Fund
Class Name Class C
Trading Symbol WBCCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about TETON Westwood Balanced Fund - Class C (the "Fund") for the period of October 1, 2025 to March 31, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.tetonadv.com/teton-westwood-funds/tw-balanced/. You can also request this information by contacting us at (800) 422-3554.
Additional Information Phone Number (800) 422-3554
Additional Information Website https://www.tetonadv.com/teton-westwood-funds/tw-balanced/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Balanced Fund - Class C
$119
2.40%
Expenses Paid, Amount $ 119
Expense Ratio, Percent 2.40%
Factors Affecting Performance [Text Block]

How did the Fund perform?

For the six month period ended March 31, 2026, the Teton Westwood Balanced Fund outperformed its broad-based benchmark, the S&P 500 Index, and underperformed its comparatives, the Bloomberg US Government / Credit Bond Index and 60% S&P 500 + 40% Bloomberg Gov't / Credit Bond Index. the Amid increased volatility in equity and bond markets, the Fund benefitted from its equity investments, which showed gains in the period as the market tilted away from growth names amid concerns about capital expenditures for artificial intelligence. Convertible securities also contributed to returns.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results. 
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
TETON Westwood Balanced Fund - Class C
TETON Westwood Balanced Fund - Class C (includes sales charge)
S&P 500 Index
60% S&P 500 + 40% Bloomberg Gov't / Credit Bond Index
Bloomberg US Government / Credit Bond Index
3/16
10,000
10,000
10,000
10,000
10,000
3/17
10,766
10,666
11,717
11,152
10,054
3/18
11,694
11,586
13,356
12,267
10,193
3/19
12,119
12,007
14,625
12,945
10,649
3/20
11,509
11,402
13,604
12,906
11,695
3/21
14,150
14,018
21,270
17,730
11,796
3/22
15,146
15,005
24,599
19,271
11,342
3/23
14,006
13,876
22,697
17,330
10,796
3/24
15,818
15,671
29,479
20,834
10,984
3/25
16,253
16,102
31,912
21,963
11,496
3/26
17,170
17,010
37,592
24,913
11,939
AssetsNet $ 30,168,006
Holdings Count | Holding 109
Advisory Fees Paid, Amount $ 121,101
InvestmentCompanyPortfolioTurnover 19.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$30,168,006
  • Number of Portfolio Holdings109
  • Portfolio Turnover Rate19%
  • Management Fees$121,101
Holdings [Text Block]

Portfolio Weighting (% of net assets)

Table Summary
Common Stocks
61.8%
Corporate Bonds
24.4%
U.S. Government Obligations
7.1%
Convertible Corporate Bonds
4.0%
Mandatory Convertible Securities
1.0%
Foreign Government Obligations
0.9%
Short Term Investment
0.2%
Other Assets and Liabilities (Net)
0.6%

Industry Allocation (% of net assets)

Group By Industry Chart
Table Summary
Industry Weighting
.
Financial Services
17.0%
Semiconductors
8.1%
U.S. Government Obligations
7.1%
Health Care
7.1%
Diversified Industrial
6.6%
Energy: Oil
5.8%
Computer Software and Services
5.4%
Food and Beverage
3.8%
Other Industry sectors
38.5%
Other Assets and Liabilities (Net)
0.6%
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
U.S. Treasury Bonds
3.9%
Amazon.com Inc.
3.6%
NVIDIA Corp.
3.5%
U.S. Treasury Notes
3.3%
Broadcom Inc.
2.0%
NextEra Energy Inc.
1.6%
Deere & Co.
1.6%
CSX Corp.
1.5%
Johnson & Johnson
1.5%
Thermo Fisher Scientific Inc.
1.5%
Material Fund Change [Text Block]
C000061063  
Shareholder Report [Line Items]  
Fund Name Balanced Fund
Class Name Class I
Trading Symbol WBBIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about TETON Westwood Balanced Fund - Class I (the "Fund") for the period of October 1, 2025 to March 31, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.tetonadv.com/teton-westwood-funds/tw-balanced/. You can also request this information by contacting us at (800) 422-3554.
Additional Information Phone Number (800) 422-3554
Additional Information Website https://www.tetonadv.com/teton-westwood-funds/tw-balanced/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Balanced Fund - Class I
$70
1.40%
Expenses Paid, Amount $ 70
Expense Ratio, Percent 1.40%
Factors Affecting Performance [Text Block]

How did the Fund perform?

For the six month period ended March 31, 2026, the Teton Westwood Balanced Fund outperformed its broad-based benchmark, the S&P 500 Index, and underperformed its comparatives, the Bloomberg US Government / Credit Bond Index and 60% S&P 500 + 40% Bloomberg Gov't / Credit Bond Index. the Amid increased volatility in equity and bond markets, the Fund benefitted from its equity investments, which showed gains in the period as the market tilted away from growth names amid concerns about capital expenditures for artificial intelligence. Convertible securities also contributed to returns.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results. 
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
TETON Westwood Balanced Fund - Class I
S&P 500 Index
60% S&P 500 + 40% Bloomberg Gov't / Credit Bond Index
Bloomberg US Government / Credit Bond Index
3/16
500,000
500,000
500,000
500,000
3/17
543,563
585,850
557,610
502,700
3/18
595,971
667,810
613,338
509,637
3/19
624,084
731,252
647,267
532,469
3/20
598,737
680,211
645,300
584,757
3/21
743,710
1,063,510
886,500
589,786
3/22
804,386
1,229,949
963,537
567,080
3/23
751,659
1,134,874
866,508
539,803
3/24
857,137
1,473,974
1,041,682
549,196
3/25
889,468
1,595,577
1,098,162
574,788
3/26
949,306
1,879,590
1,245,667
596,975
AssetsNet $ 30,168,006
Holdings Count | Holding 109
Advisory Fees Paid, Amount $ 121,101
InvestmentCompanyPortfolioTurnover 19.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$30,168,006
  • Number of Portfolio Holdings109
  • Portfolio Turnover Rate19%
  • Management Fees$121,101
Holdings [Text Block]

Portfolio Weighting (% of net assets)

Table Summary
Common Stocks
61.8%
Corporate Bonds
24.4%
U.S. Government Obligations
7.1%
Convertible Corporate Bonds
4.0%
Mandatory Convertible Securities
1.0%
Foreign Government Obligations
0.9%
Short Term Investment
0.2%
Other Assets and Liabilities (Net)
0.6%

Industry Allocation (% of net assets)

Group By Industry Chart
Table Summary
Industry Weighting
.
Financial Services
17.0%
Semiconductors
8.1%
U.S. Government Obligations
7.1%
Health Care
7.1%
Diversified Industrial
6.6%
Energy: Oil
5.8%
Computer Software and Services
5.4%
Food and Beverage
3.8%
Other Industry sectors
38.5%
Other Assets and Liabilities (Net)
0.6%
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
U.S. Treasury Bonds
3.9%
Amazon.com Inc.
3.6%
NVIDIA Corp.
3.5%
U.S. Treasury Notes
3.3%
Broadcom Inc.
2.0%
NextEra Energy Inc.
1.6%
Deere & Co.
1.6%
CSX Corp.
1.5%
Johnson & Johnson
1.5%
Thermo Fisher Scientific Inc.
1.5%
Material Fund Change [Text Block]
C000002911  
Shareholder Report [Line Items]  
Fund Name Balanced Fund
Class Name Class A
Trading Symbol WEBCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about TETON Westwood Balanced Fund - Class A (the "Fund") for the period of October 1, 2025 to March 31, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.tetonadv.com/teton-westwood-funds/tw-balanced/. You can also request this information by contacting us at (800) 422-3554.
Additional Information Phone Number (800) 422-3554
Additional Information Website https://www.tetonadv.com/teton-westwood-funds/tw-balanced/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Balanced Fund - Class A
$82
1.65%
Expenses Paid, Amount $ 82
Expense Ratio, Percent 1.65%
Factors Affecting Performance [Text Block]

How did the Fund perform?

For the six month period ended March 31, 2026, the Teton Westwood Balanced Fund outperformed its broad-based benchmark, the S&P 500 Index, and underperformed its comparatives, the Bloomberg US Government / Credit Bond Index and 60% S&P 500 + 40% Bloomberg Gov't / Credit Bond Index. the Amid increased volatility in equity and bond markets, the Fund benefitted from its equity investments, which showed gains in the period as the market tilted away from growth names amid concerns about capital expenditures for artificial intelligence. Convertible securities also contributed to returns.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results. 
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
TETON Westwood Balanced Fund - Class A
TETON Westwood Balanced Fund - Class A (includes sales charge)
S&P 500 Index
60% S&P 500 + 40% Bloomberg Gov't / Credit Bond Index
Bloomberg US Government / Credit Bond Index
3/16
10,000
10,000
10,000
10,000
10,000
3/17
10,817
10,382
11,717
11,152
10,054
3/18
11,801
10,872
13,356
12,267
10,193
3/19
12,292
10,868
14,625
12,945
10,649
3/20
11,736
9,961
13,604
12,906
11,695
3/21
14,517
11,828
21,270
17,730
11,796
3/22
15,662
12,252
24,599
19,271
11,342
3/23
14,588
10,954
22,697
17,330
10,796
3/24
16,607
11,966
29,479
20,834
10,984
3/25
17,194
11,890
31,912
21,963
11,496
3/26
18,298
12,147
37,592
24,913
11,939
AssetsNet $ 30,168,006
Holdings Count | Holding 109
Advisory Fees Paid, Amount $ 121,101
InvestmentCompanyPortfolioTurnover 19.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$30,168,006
  • Number of Portfolio Holdings109
  • Portfolio Turnover Rate19%
  • Management Fees$121,101
Holdings [Text Block]

Portfolio Weighting (% of net assets)

Table Summary
Common Stocks
61.8%
Corporate Bonds
24.4%
U.S. Government Obligations
7.1%
Convertible Corporate Bonds
4.0%
Mandatory Convertible Securities
1.0%
Foreign Government Obligations
0.9%
Short Term Investment
0.2%
Other Assets and Liabilities (Net)
0.6%

Industry Allocation (% of net assets)

Group By Industry Chart
Table Summary
Industry Weighting
.
Financial Services
17.0%
Semiconductors
8.1%
U.S. Government Obligations
7.1%
Health Care
7.1%
Diversified Industrial
6.6%
Energy: Oil
5.8%
Computer Software and Services
5.4%
Food and Beverage
3.8%
Other Industry sectors
38.5%
Other Assets and Liabilities (Net)
0.6%
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
U.S. Treasury Bonds
3.9%
Amazon.com Inc.
3.6%
NVIDIA Corp.
3.5%
U.S. Treasury Notes
3.3%
Broadcom Inc.
2.0%
NextEra Energy Inc.
1.6%
Deere & Co.
1.6%
CSX Corp.
1.5%
Johnson & Johnson
1.5%
Thermo Fisher Scientific Inc.
1.5%
Material Fund Change [Text Block]
C000002922  
Shareholder Report [Line Items]  
Fund Name Convertible Securities Fund
Class Name Class AAA
Trading Symbol WESRX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about TETON Convertible Securities Fund - Class AAA (the "Fund") for the period of October 1, 2025 to March 31, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.tetonadv.com/teton-westwood-funds/tw-convertible-securities/. You can also request this information by contacting us at (800) 422-3554.
Additional Information Phone Number (800) 422-3554
Additional Information Website https://www.tetonadv.com/teton-westwood-funds/tw-convertible-securities/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Teton Convertible Securities Fund - Class AAA
$57
1.15%
Expenses Paid, Amount $ 57
Expense Ratio, Percent 1.15%
Factors Affecting Performance [Text Block]

How did the Fund perform?

For the six month period ended March 31, 2026, the Teton Convertible Securities Fund underperformed its benchmarks, the S&P 500 and ICE BAML U.S. Convertibles Index. The Fund was underweight a few equity sensitive technology convertibles that accounted for a significant percentage of index performance in the time period. The Fund's focus on balanced convertibles helped it outperform its underlying equities through a volatile market. Top contributors to the portfolio included Lumentum, BridgeBio, Bloom Energy and Brightspring Health Services. Top detractors from performance included Shift4 Payments, Alibaba, and Sofi.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results. 
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
TETON Convertible Securities Fund - Class AAA
S&P 500 Index
ICE Bank of America Merrill Lynch U.S. Convertibles Index
3/16
10,000
10,000
10,000
3/17
11,406
11,717
11,771
3/18
12,970
13,356
13,022
3/19
13,877
14,625
14,043
3/20
13,478
13,604
13,549
3/21
19,562
21,270
23,593
3/22
18,913
24,599
23,071
3/23
16,544
22,697
20,570
3/24
16,786
29,479
18,340
3/25
18,157
31,912
19,490
3/26
21,729
37,592
24,371
AssetsNet $ 11,346,286
Holdings Count | Holding 74
Advisory Fees Paid, Amount $ (30,533)
InvestmentCompanyPortfolioTurnover 48.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$11,346,286
  • Number of Portfolio Holdings74
  • Portfolio Turnover Rate48%
  • Management Fees$(30,533)
Holdings [Text Block]

Portfolio Weighting (% of net assets)

Table Summary
Convertible Corporate Bonds
83.2%
Mandatory Convertible Securities
14.4%
U.S. Government Obligations
1.9%
Other Assets and Liabilities (Net)
0.5%

Industry Allocation (% of net assets)

Group By Industry Chart
Table Summary
Industry Weighting
.
Health Care
23.4%
Computer Software and Services
10.3%
Energy and Utilities: Services
10.3%
Financial Services
9.2%
Energy and Energy Services
8.4%
Aerospace and Defense
6.0%
Semiconductors
4.6%
Metals and Mining
3.4%
Other Industry sectors
23.9%
Other Assets and Liabilities (Net)
0.5%
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
PPL Capital Funding Inc.
4.1%
Bridgebio Pharma Inc.
3.0%
Hewlett Packard Enterprise Co.
2.8%
Digital Realty Trust LP
2.8%
Microchip Technology Inc.
2.5%
BrightSpring Health Services Inc.
2.5%
Alibaba Group Holding Ltd.
2.5%
Lumentum Holdings Inc.
2.4%
Applied Digital Corp.
2.3%
OSI Systems Inc.
2.3%
Material Fund Change [Text Block]
C000002921  
Shareholder Report [Line Items]  
Fund Name Convertible Securities Fund
Class Name Class C
Trading Symbol WEICX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about TETON Convertible Securities Fund - Class C (the "Fund") for the period of October 1, 2025 to March 31, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.tetonadv.com/teton-westwood-funds/tw-convertible-securities/. You can also request this information by contacting us at (800) 422-3554.
Additional Information Phone Number (800) 422-3554
Additional Information Website https://www.tetonadv.com/teton-westwood-funds/tw-convertible-securities/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Teton Convertible Securities Fund - Class C
$94
1.90%
Expenses Paid, Amount $ 94
Expense Ratio, Percent 1.90%
Factors Affecting Performance [Text Block]

How did the Fund perform?

For the six month period ended March 31, 2026, the Teton Convertible Securities Fund underperformed its benchmarks, the S&P 500 and ICE BAML U.S. Convertibles Index. The Fund was underweight a few equity sensitive technology convertibles that accounted for a significant percentage of index performance in the time period. The Fund's focus on balanced convertibles helped it outperform its underlying equities through a volatile market. Top contributors to the portfolio included Lumentum, BridgeBio, Bloom Energy and Brightspring Health Services. Top detractors from performance included Shift4 Payments, Alibaba, and Sofi.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results. 
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
TETON Convertible Securities Fund - Class C
TETON Convertible Securities Fund - Class C (includes sales charge)
S&P 500 Index
ICE Bank of America Merrill Lynch U.S. Convertibles Index
3/16
10,000
10,000
10,000
10,000
3/17
11,307
11,207
11,717
11,771
3/18
12,771
12,658
13,356
13,022
3/19
13,562
13,442
14,625
14,043
3/20
13,064
12,948
13,604
13,549
3/21
18,823
18,656
21,270
23,593
3/22
18,066
17,907
24,599
23,071
3/23
15,685
15,546
22,697
20,570
3/24
15,792
15,652
29,479
18,340
3/25
16,936
16,786
31,912
19,490
3/26
20,126
19,948
37,592
24,371
AssetsNet $ 11,346,286
Holdings Count | Holding 74
Advisory Fees Paid, Amount $ (30,533)
InvestmentCompanyPortfolioTurnover 48.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$11,346,286
  • Number of Portfolio Holdings74
  • Portfolio Turnover Rate48%
  • Management Fees$(30,533)
Holdings [Text Block]

Portfolio Weighting (% of net assets)

Table Summary
Convertible Corporate Bonds
83.2%
Mandatory Convertible Securities
14.4%
U.S. Government Obligations
1.9%
Other Assets and Liabilities (Net)
0.5%

Industry Allocation (% of net assets)

Group By Industry Chart
Table Summary
Industry Weighting
.
Health Care
23.4%
Computer Software and Services
10.3%
Energy and Utilities: Services
10.3%
Financial Services
9.2%
Energy and Energy Services
8.4%
Aerospace and Defense
6.0%
Semiconductors
4.6%
Metals and Mining
3.4%
Other Industry sectors
23.9%
Other Assets and Liabilities (Net)
0.5%
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
PPL Capital Funding Inc.
4.1%
Bridgebio Pharma Inc.
3.0%
Hewlett Packard Enterprise Co.
2.8%
Digital Realty Trust LP
2.8%
Microchip Technology Inc.
2.5%
BrightSpring Health Services Inc.
2.5%
Alibaba Group Holding Ltd.
2.5%
Lumentum Holdings Inc.
2.4%
Applied Digital Corp.
2.3%
OSI Systems Inc.
2.3%
Material Fund Change [Text Block]
C000061065  
Shareholder Report [Line Items]  
Fund Name Convertible Securities Fund
Class Name Class I
Trading Symbol WESIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about TETON Convertible Securities Fund - Class I (the "Fund") for the period of October 1, 2025 to March 31, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.tetonadv.com/teton-westwood-funds/tw-convertible-securities/. You can also request this information by contacting us at (800) 422-3554.
Additional Information Phone Number (800) 422-3554
Additional Information Website https://www.tetonadv.com/teton-westwood-funds/tw-convertible-securities/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Teton Convertible Securities Fund - Class I
$44
0.90%
Expenses Paid, Amount $ 44
Expense Ratio, Percent 0.90%
Factors Affecting Performance [Text Block]

How did the Fund perform?

For the six month period ended March 31, 2026, the Teton Convertible Securities Fund underperformed its benchmarks, the S&P 500 and ICE BAML U.S. Convertibles Index. The Fund was underweight a few equity sensitive technology convertibles that accounted for a significant percentage of index performance in the time period. The Fund's focus on balanced convertibles helped it outperform its underlying equities through a volatile market. Top contributors to the portfolio included Lumentum, BridgeBio, Bloom Energy and Brightspring Health Services. Top detractors from performance included Shift4 Payments, Alibaba, and Sofi.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results. 
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
TETON Convertible Securities Fund - Class I
S&P 500 Index
ICE Bank of America Merrill Lynch U.S. Convertibles Index
3/16
100,000
100,000
100,000
3/17
114,352
117,170
117,710
3/18
130,528
133,562
130,223
3/19
139,969
146,250
140,432
3/20
136,201
136,042
135,489
3/21
198,180
212,702
235,927
3/22
192,137
245,990
230,713
3/23
168,406
226,975
205,703
3/24
171,217
294,795
183,399
3/25
185,520
319,115
183,399
3/26
222,635
375,918
229,329
AssetsNet $ 11,346,286
Holdings Count | Holding 74
Advisory Fees Paid, Amount $ (30,533)
InvestmentCompanyPortfolioTurnover 48.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$11,346,286
  • Number of Portfolio Holdings74
  • Portfolio Turnover Rate48%
  • Management Fees$(30,533)
Holdings [Text Block]

Portfolio Weighting (% of net assets)

Table Summary
Convertible Corporate Bonds
83.2%
Mandatory Convertible Securities
14.4%
U.S. Government Obligations
1.9%
Other Assets and Liabilities (Net)
0.5%

Industry Allocation (% of net assets)

Group By Industry Chart
Table Summary
Industry Weighting
.
Health Care
23.4%
Computer Software and Services
10.3%
Energy and Utilities: Services
10.3%
Financial Services
9.2%
Energy and Energy Services
8.4%
Aerospace and Defense
6.0%
Semiconductors
4.6%
Metals and Mining
3.4%
Other Industry sectors
23.9%
Other Assets and Liabilities (Net)
0.5%
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
PPL Capital Funding Inc.
4.1%
Bridgebio Pharma Inc.
3.0%
Hewlett Packard Enterprise Co.
2.8%
Digital Realty Trust LP
2.8%
Microchip Technology Inc.
2.5%
BrightSpring Health Services Inc.
2.5%
Alibaba Group Holding Ltd.
2.5%
Lumentum Holdings Inc.
2.4%
Applied Digital Corp.
2.3%
OSI Systems Inc.
2.3%
Material Fund Change [Text Block]
C000002919  
Shareholder Report [Line Items]  
Fund Name Convertible Securities Fund
Class Name Class A
Trading Symbol WEIAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about TETON Convertible Securities Fund - Class A (the "Fund") for the period of October 1, 2025 to March 31, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.tetonadv.com/teton-westwood-funds/tw-convertible-securities/. You can also request this information by contacting us at (800) 422-3554.
Additional Information Phone Number (800) 422-3554
Additional Information Website https://www.tetonadv.com/teton-westwood-funds/tw-convertible-securities/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Teton Convertible Securities Fund - Class A
$57
1.15%
Expenses Paid, Amount $ 57
Expense Ratio, Percent 1.15%
Factors Affecting Performance [Text Block]

How did the Fund perform?

For the six month period ended March 31, 2026, the Teton Convertible Securities Fund underperformed its benchmarks, the S&P 500 and ICE BAML U.S. Convertibles Index. The Fund was underweight a few equity sensitive technology convertibles that accounted for a significant percentage of index performance in the time period. The Fund's focus on balanced convertibles helped it outperform its underlying equities through a volatile market. Top contributors to the portfolio included Lumentum, BridgeBio, Bloom Energy and Brightspring Health Services. Top detractors from performance included Shift4 Payments, Alibaba, and Sofi.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results. 
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
TETON Convertible Securities Fund - Class A
TETON Convertible Securities Fund - Class A (includes sales charge)
S&P 500 Index
ICE Bank of America Merrill Lynch U.S. Convertibles Index
3/16
10,000
10,000
10,000
10,000
3/17
11,378
10,919
11,717
11,771
3/18
12,910
11,890
13,356
13,022
3/19
13,781
12,186
14,625
14,043
3/20
13,344
11,327
13,604
13,549
3/21
19,333
15,752
21,270
23,593
3/22
18,692
14,617
24,599
23,071
3/23
16,351
12,278
22,697
20,570
3/24
16,592
12,459
29,479
18,340
3/25
17,913
13,450
31,912
19,490
3/26
21,454
16,109
37,592
24,371
AssetsNet $ 11,346,286
Holdings Count | Holding 74
Advisory Fees Paid, Amount $ (30,533)
InvestmentCompanyPortfolioTurnover 48.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$11,346,286
  • Number of Portfolio Holdings74
  • Portfolio Turnover Rate48%
  • Management Fees$(30,533)
Holdings [Text Block]

Portfolio Weighting (% of net assets)

Table Summary
Convertible Corporate Bonds
83.2%
Mandatory Convertible Securities
14.4%
U.S. Government Obligations
1.9%
Other Assets and Liabilities (Net)
0.5%

Industry Allocation (% of net assets)

Group By Industry Chart
Table Summary
Industry Weighting
.
Health Care
23.4%
Computer Software and Services
10.3%
Energy and Utilities: Services
10.3%
Financial Services
9.2%
Energy and Energy Services
8.4%
Aerospace and Defense
6.0%
Semiconductors
4.6%
Metals and Mining
3.4%
Other Industry sectors
23.9%
Other Assets and Liabilities (Net)
0.5%
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
PPL Capital Funding Inc.
4.1%
Bridgebio Pharma Inc.
3.0%
Hewlett Packard Enterprise Co.
2.8%
Digital Realty Trust LP
2.8%
Microchip Technology Inc.
2.5%
BrightSpring Health Services Inc.
2.5%
Alibaba Group Holding Ltd.
2.5%
Lumentum Holdings Inc.
2.4%
Applied Digital Corp.
2.3%
OSI Systems Inc.
2.3%
Material Fund Change [Text Block]
C000002918  
Shareholder Report [Line Items]  
Fund Name Equity Fund
Class Name Class AAA
Trading Symbol WESWX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about TETON Westwood Equity Fund - Class AAA (the "Fund") for the period of October 1, 2025 to March 31, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.tetonadv.com/teton-westwood-funds/tw-equity/. You can also request this information by contacting us at (800) 422-3554.
Additional Information Phone Number (800) 422-3554
Additional Information Website https://www.tetonadv.com/teton-westwood-funds/tw-equity/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Equity Fund - Class AAA
$90
1.80%
Expenses Paid, Amount $ 90
Expense Ratio, Percent 1.80%
Factors Affecting Performance [Text Block]

How did the Fund perform?

For the six month period ended March 31, 2026, the Teton Westwood Equity Fund outperformed its broad-based benchmark the S&P 500 Index and underperformed its comparative, the Russell 1000 Value Index. The stock market rally that began in 2025 continued into the new year, though it ran out of steam as stocks declined amid war in the Middle East and challenging economic statistics. The selling to close the period was indiscriminate and broad-based, impacting large and small cap, growth and value stocks.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results. 
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
TETON Westwood Equity Fund - Class AAA
S&P 500 Index
Russell 1000 Value Index
3/16
10,000
10,000
10,000
3/17
11,327
11,717
11,922
3/18
12,855
13,356
12,751
3/19
13,475
14,625
13,474
3/20
11,844
13,604
11,160
3/21
16,983
21,270
17,420
3/22
19,238
24,599
19,453
3/23
17,877
22,697
18,303
3/24
20,846
29,479
22,013
3/25
21,281
31,912
23,594
3/26
22,258
37,592
27,338
AssetsNet $ 37,790,503
Holdings Count | Holding 53
Advisory Fees Paid, Amount $ 201,070
InvestmentCompanyPortfolioTurnover 27.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$37,790,503
  • Number of Portfolio Holdings53
  • Portfolio Turnover Rate27%
  • Management Fees$201,070
Holdings [Text Block]

Portfolio Weighting (% of net assets)

Table Summary
Common Stocks
99.6%
Short Term Investment
0.4%
Other Assets and Liabilities (Net) Footnote Reference*
0.0%
FootnoteDescription
Footnote*
Amount represents less than 0.05%

Industry Allocation (% of net assets)

Group By Industry Chart
Table Summary
Industry Weighting
.
Financial Services
19.8%
Retail
10.0%
Health Care
9.4%
Diversified Industrial
8.3%
Computer Software and Services
7.9%
Energy and Utilities: Integrated
7.3%
Energy: Oil
6.1%
Food and Beverage
4.4%
Other Industry sectors
26.8%
Other Assets and Liabilities (Net)Footnote Reference1
0.0%
FootnoteDescription
Footnote1
Amount represents less than 0.05%
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
Amazon.com Inc.
3.0%
NextEra Energy Inc.
2.7%
Thermo Fisher Scientific Inc.
2.5%
Berkshire Hathaway Inc.
2.5%
RB Global Inc.
2.5%
Alphabet Inc.
2.4%
Johnson & Johnson
2.4%
The Home Depot Inc.
2.4%
CSX Corp.
2.4%
Exxon Mobil Corp.
2.4%
Material Fund Change [Text Block]
C000002916  
Shareholder Report [Line Items]  
Fund Name Equity Fund
Class Name Class C
Trading Symbol WEQCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about TETON Westwood Equity Fund - Class C (the "Fund") for the period of October 1, 2025 to March 31, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.tetonadv.com/teton-westwood-funds/tw-equity/. You can also request this information by contacting us at (800) 422-3554.
Additional Information Phone Number (800) 422-3554
Additional Information Website https://www.tetonadv.com/teton-westwood-funds/tw-equity/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Equity Fund - Class C
$137
2.56%
Expenses Paid, Amount $ 137
Expense Ratio, Percent 2.56%
Factors Affecting Performance [Text Block]

How did the Fund perform?

For the six month period ended March 31, 2026, the Teton Westwood Equity Fund outperformed its broad-based benchmark the S&P 500 Index and underperformed its comparative, the Russell 1000 Value Index. The stock market rally that began in 2025 continued into the new year, though it ran out of steam as stocks declined amid war in the Middle East and challenging economic statistics. The selling to close the period was indiscriminate and broad-based, impacting large and small cap, growth and value stocks.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results. 
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
TETON Westwood Equity Fund - Class C
TETON Westwood Equity Fund - Class C (includes sales charge)
S&P 500 Index
Russell 1000 Value Index
3/16
10,000
10,000
10,000
10,000
3/17
11,253
11,153
11,717
11,922
3/18
12,667
12,554
13,356
12,751
3/19
13,174
13,057
14,625
13,474
3/20
11,506
11,403
13,604
11,160
3/21
16,339
16,194
21,270
17,420
3/22
18,376
18,213
24,599
19,453
3/23
16,953
16,803
22,697
18,303
3/24
19,633
19,458
29,479
22,013
3/25
19,892
19,715
31,912
23,594
3/26
23,751
23,540
37,592
27,338
AssetsNet $ 37,790,503
Holdings Count | Holding 53
Advisory Fees Paid, Amount $ 201,070
InvestmentCompanyPortfolioTurnover 27.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$37,790,503
  • Number of Portfolio Holdings53
  • Portfolio Turnover Rate27%
  • Management Fees$201,070
Holdings [Text Block]

Portfolio Weighting (% of net assets)

Table Summary
Common Stocks
99.6%
Short Term Investment
0.4%
Other Assets and Liabilities (Net) Footnote Reference*
0.0%
FootnoteDescription
Footnote*
Amount represents less than 0.05%

Industry Allocation (% of net assets)

Group By Industry Chart
Table Summary
Industry Weighting
.
Financial Services
19.8%
Retail
10.0%
Health Care
9.4%
Diversified Industrial
8.3%
Computer Software and Services
7.9%
Energy and Utilities: Integrated
7.3%
Energy: Oil
6.1%
Food and Beverage
4.4%
Other Industry sectors
26.8%
Other Assets and Liabilities (Net)Footnote Reference1
0.0%
FootnoteDescription
Footnote1
Amount represents less than 0.05%
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
Amazon.com Inc.
3.0%
NextEra Energy Inc.
2.7%
Thermo Fisher Scientific Inc.
2.5%
Berkshire Hathaway Inc.
2.5%
RB Global Inc.
2.5%
Alphabet Inc.
2.4%
Johnson & Johnson
2.4%
The Home Depot Inc.
2.4%
CSX Corp.
2.4%
Exxon Mobil Corp.
2.4%
Material Fund Change [Text Block]
C000061064  
Shareholder Report [Line Items]  
Fund Name Equity Fund
Class Name Class I
Trading Symbol WEEIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about TETON Westwood Equity Fund - Class I (the "Fund") for the period of October 1, 2025 to March 31, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.tetonadv.com/teton-westwood-funds/tw-equity/. You can also request this information by contacting us at (800) 422-3554.
Additional Information Phone Number (800) 422-3554
Additional Information Website https://www.tetonadv.com/teton-westwood-funds/tw-equity/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Equity Fund - Class I
$77
1.55%
Expenses Paid, Amount $ 77
Expense Ratio, Percent 1.55%
Factors Affecting Performance [Text Block]

How did the Fund perform?

For the six month period ended March 31, 2026, the Teton Westwood Equity Fund outperformed its broad-based benchmark the S&P 500 Index and underperformed its comparative, the Russell 1000 Value Index. The stock market rally that began in 2025 continued into the new year, though it ran out of steam as stocks declined amid war in the Middle East and challenging economic statistics. The selling to close the period was indiscriminate and broad-based, impacting large and small cap, growth and value stocks.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results. 
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
TETON Westwood Equity Fund - Class I
S&P 500 Index
Russell 1000 Value Index
3/16
500,000
500,000
500,000
3/17
567,986
585,850
596,100
3/18
645,997
667,810
637,529
3/19
679,097
731,252
673,677
3/20
598,611
680,211
558,007
3/21
860,262
1,063,510
870,992
3/22
976,969
1,229,949
972,637
3/23
909,434
1,134,874
915,154
3/24
1,064,034
1,473,974
1,100,656
3/25
1,088,742
1,595,577
1,179,683
3/26
1,141,356
1,879,590
1,366,899
AssetsNet $ 37,790,503
Holdings Count | Holding 53
Advisory Fees Paid, Amount $ 201,070
InvestmentCompanyPortfolioTurnover 27.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$37,790,503
  • Number of Portfolio Holdings53
  • Portfolio Turnover Rate27%
  • Management Fees$201,070
Holdings [Text Block]

Portfolio Weighting (% of net assets)

Table Summary
Common Stocks
99.6%
Short Term Investment
0.4%
Other Assets and Liabilities (Net) Footnote Reference*
0.0%
FootnoteDescription
Footnote*
Amount represents less than 0.05%

Industry Allocation (% of net assets)

Group By Industry Chart
Table Summary
Industry Weighting
.
Financial Services
19.8%
Retail
10.0%
Health Care
9.4%
Diversified Industrial
8.3%
Computer Software and Services
7.9%
Energy and Utilities: Integrated
7.3%
Energy: Oil
6.1%
Food and Beverage
4.4%
Other Industry sectors
26.8%
Other Assets and Liabilities (Net)Footnote Reference1
0.0%
FootnoteDescription
Footnote1
Amount represents less than 0.05%
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
Amazon.com Inc.
3.0%
NextEra Energy Inc.
2.7%
Thermo Fisher Scientific Inc.
2.5%
Berkshire Hathaway Inc.
2.5%
RB Global Inc.
2.5%
Alphabet Inc.
2.4%
Johnson & Johnson
2.4%
The Home Depot Inc.
2.4%
CSX Corp.
2.4%
Exxon Mobil Corp.
2.4%
Material Fund Change [Text Block]
C000002917  
Shareholder Report [Line Items]  
Fund Name Equity Fund
Class Name Class A
Trading Symbol WEECX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about TETON Westwood Equity Fund - Class A (the "Fund") for the period of October 1, 2025 to March 31, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.tetonadv.com/teton-westwood-funds/tw-equity/. You can also request this information by contacting us at (800) 422-3554.
Additional Information Phone Number (800) 422-3554
Additional Information Website https://www.tetonadv.com/teton-westwood-funds/tw-equity/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Equity Fund - Class A
$90
1.80%
Expenses Paid, Amount $ 90
Expense Ratio, Percent 1.80%
Factors Affecting Performance [Text Block]

How did the Fund perform?

For the six month period ended March 31, 2026, the Teton Westwood Equity Fund outperformed its broad-based benchmark the S&P 500 Index and underperformed its comparative, the Russell 1000 Value Index. The stock market rally that began in 2025 continued into the new year, though it ran out of steam as stocks declined amid war in the Middle East and challenging economic statistics. The selling to close the period was indiscriminate and broad-based, impacting large and small cap, growth and value stocks.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results. 
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
TETON Westwood Equity Fund - Class A
TETON Westwood Equity Fund - Class A (includes sales charge)
S&P 500 Index
Russell 1000 Value Index
3/16
10,000
10,000
10,000
10,000
3/17
11,299
10,847
11,717
11,922
3/18
12,795
11,792
13,356
12,751
3/19
13,372
11,831
14,625
13,474
3/20
11,735
9,967
13,604
11,160
3/21
16,791
13,691
21,270
17,420
3/22
19,021
14,889
24,599
19,453
3/23
17,671
13,279
22,697
18,303
3/24
20,625
14,879
29,479
22,013
3/25
21,054
14,581
31,912
23,594
3/26
21,997
14,625
37,592
27,338
AssetsNet $ 37,790,503
Holdings Count | Holding 53
Advisory Fees Paid, Amount $ 201,070
InvestmentCompanyPortfolioTurnover 27.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$37,790,503
  • Number of Portfolio Holdings53
  • Portfolio Turnover Rate27%
  • Management Fees$201,070
Holdings [Text Block]

Portfolio Weighting (% of net assets)

Table Summary
Common Stocks
99.6%
Short Term Investment
0.4%
Other Assets and Liabilities (Net) Footnote Reference*
0.0%
FootnoteDescription
Footnote*
Amount represents less than 0.05%

Industry Allocation (% of net assets)

Group By Industry Chart
Table Summary
Industry Weighting
.
Financial Services
19.8%
Retail
10.0%
Health Care
9.4%
Diversified Industrial
8.3%
Computer Software and Services
7.9%
Energy and Utilities: Integrated
7.3%
Energy: Oil
6.1%
Food and Beverage
4.4%
Other Industry sectors
26.8%
Other Assets and Liabilities (Net)Footnote Reference1
0.0%
FootnoteDescription
Footnote1
Amount represents less than 0.05%
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
Amazon.com Inc.
3.0%
NextEra Energy Inc.
2.7%
Thermo Fisher Scientific Inc.
2.5%
Berkshire Hathaway Inc.
2.5%
RB Global Inc.
2.5%
Alphabet Inc.
2.4%
Johnson & Johnson
2.4%
The Home Depot Inc.
2.4%
CSX Corp.
2.4%
Exxon Mobil Corp.
2.4%
Material Fund Change [Text Block]
C000002928  
Shareholder Report [Line Items]  
Fund Name Mighty Mites Fund
Class Name Class AAA
Trading Symbol WEMMX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about TETON Westwood Mighty Mites Fund - Class AAA (the "Fund") for the period of October 1, 2025 to March 31, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.tetonadv.com/teton-westwood-funds/tw-mighty-mites/. You can also request this information by contacting us at (800) 422-3544.
Additional Information Phone Number (800) 422-3544
Additional Information Website https://www.tetonadv.com/teton-westwood-funds/tw-mighty-mites/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Mighty Mites Fund - Class AAA
$80
1.55%
Expenses Paid, Amount $ 80
Expense Ratio, Percent 1.55%
Factors Affecting Performance [Text Block]

How did the Fund perform?

For the six month period ended March 31, 2026, the Teton Westwood Mighty Mites Fund outperformed its broad-based benchmark, the  Russell 2000 Index, and its comparative, the Dow Jones U.S. Micro-Cap Total Stock Market Index. Performance was driven by strength across our industrial holdings, particularly within aerospace and defense. This was partially offset by the Fund’s underweight positions in energy and healthcare, primarily biotechnology. Contributors to performance included Astronics Corp, Ultra Clean Holdings, Inc., and Myers Industries, Inc. Detractors from the portfolio included Gibraltar Industries, Inc., Full House Resorts, Inc., and Eastern Company.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results. 
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
TETON Westwood Mighty Mites Fund - Class AAA
Russell 2000 Index
Dow Jones U.S. Micro-Cap Total Stock Market Index
3/16
10,000
10,000
10,000
3/17
12,404
12,622
12,732
3/18
13,704
14,110
14,435
3/19
13,268
14,399
14,409
3/20
9,837
10,945
10,649
3/21
17,733
21,326
23,341
3/22
17,571
20,091
18,556
3/23
16,689
17,759
14,442
3/24
18,956
21,259
16,298
3/25
17,744
20,407
15,549
3/26
22,600
25,655
20,599
AssetsNet $ 181,070,086
Holdings Count | Holding 277
Advisory Fees Paid, Amount $ 917,849
InvestmentCompanyPortfolioTurnover 1.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$181,070,086
  • Number of Portfolio Holdings277
  • Portfolio Turnover Rate1%
  • Management Fees$917,849
Holdings [Text Block]

Portfolio Weighting (% of net assets)

Table Summary
Common Stocks
97.8%
U.S. Government Obligations
2.1%
Preferred Stocks
0.1%
Other Assets and Liabilities (Net)Footnote Reference*
(0.0)%
FootnoteDescription
Footnote*
Amount represents greater than (0.05%)

Industry Allocation (% of net assets)

Group By Industry Chart
Table Summary
Industry Weighting
.
Financial Services
15.1%
Diversified Industrial
12.9%
Health Care
4.9%
Equipment and Supplies
4.8%
Aviation: Parts and Services
4.2%
Building and Construction
4.1%
Machinery
3.7%
Electronics
3.6%
Other Industry sectors
46.7%
Other Assets and Liabilities (Net)Footnote Reference*
(0.0)%
FootnoteDescription
Footnote*
Amount represents greater than (0.05%)
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
Myers Industries Inc.
2.9%
Astronics Corp.
2.9%
Gencor Industries Inc.
2.1%
Park-Ohio Holdings Corp.
2.1%
Burnham Holdings Inc.
2.0%
The Monarch Cement Co.
1.8%
Rush Enterprises Inc.
1.7%
Capital City Bank Group Inc.
1.6%
Nobility Homes Inc.
1.6%
L.B. Foster Co.
1.5%
Material Fund Change [Text Block]
C000002930  
Shareholder Report [Line Items]  
Fund Name Mighty Mites Fund
Class Name Class C
Trading Symbol WMMCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about TETON Westwood Mighty Mites Fund - Class C (the "Fund") for the period of October 1, 2025 to March 31, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.tetonadv.com/teton-westwood-funds/tw-mighty-mites/. You can also request this information by contacting us at (800) 422-3544.
Additional Information Phone Number (800) 422-3544
Additional Information Website https://www.tetonadv.com/teton-westwood-funds/tw-mighty-mites/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Mighty Mites Fund - Class C
$119
2.30%
Expenses Paid, Amount $ 119
Expense Ratio, Percent 2.30%
Factors Affecting Performance [Text Block]

How did the Fund perform?

For the six month period ended March 31, 2026, the Teton Westwood Mighty Mites Fund outperformed its broad-based benchmark, the  Russell 2000 Index, and its comparative, the Dow Jones U.S. Micro-Cap Total Stock Market Index. Performance was driven by strength across our industrial holdings, particularly within aerospace and defense. This was partially offset by the Fund’s underweight positions in energy and healthcare, primarily biotechnology. Contributors to performance included Astronics Corp, Ultra Clean Holdings, Inc., and Myers Industries, Inc. Detractors from the portfolio included Gibraltar Industries, Inc., Full House Resorts, Inc., and Eastern Company.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results. 
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
TETON Westwood Mighty Mites Fund - Class C
TETON Westwood Mighty Mites Fund - Class C (includes sales charge)
Russell 2000 Index
Dow Jones U.S. Micro-Cap Total Stock Market Index
3/16
10,000
10,000
10,000
10,000
3/17
12,313
12,213
12,622
12,732
3/18
13,499
13,389
14,110
14,435
3/19
12,973
12,867
14,399
14,409
3/20
9,542
9,465
10,945
10,649
3/21
17,083
16,944
21,326
23,341
3/22
16,791
16,655
20,091
18,556
3/23
15,837
15,708
17,759
14,442
3/24
17,849
17,704
21,259
16,298
3/25
16,583
16,448
20,407
15,549
3/26
20,965
20,794
25,655
20,599
AssetsNet $ 181,070,086
Holdings Count | Holding 277
Advisory Fees Paid, Amount $ 917,849
InvestmentCompanyPortfolioTurnover 1.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$181,070,086
  • Number of Portfolio Holdings277
  • Portfolio Turnover Rate1%
  • Management Fees$917,849
Holdings [Text Block]

Portfolio Weighting (% of net assets)

Table Summary
Common Stocks
97.8%
U.S. Government Obligations
2.1%
Preferred Stocks
0.1%
Other Assets and Liabilities (Net)Footnote Reference*
(0.0)%
FootnoteDescription
Footnote*
Amount represents greater than (0.05%)

Industry Allocation (% of net assets)

Group By Industry Chart
Table Summary
Industry Weighting
.
Financial Services
15.1%
Diversified Industrial
12.9%
Health Care
4.9%
Equipment and Supplies
4.8%
Aviation: Parts and Services
4.2%
Building and Construction
4.1%
Machinery
3.7%
Electronics
3.6%
Other Industry sectors
46.7%
Other Assets and Liabilities (Net)Footnote Reference*
(0.0)%
FootnoteDescription
Footnote*
Amount represents greater than (0.05%)
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
Myers Industries Inc.
2.9%
Astronics Corp.
2.9%
Gencor Industries Inc.
2.1%
Park-Ohio Holdings Corp.
2.1%
Burnham Holdings Inc.
2.0%
The Monarch Cement Co.
1.8%
Rush Enterprises Inc.
1.7%
Capital City Bank Group Inc.
1.6%
Nobility Homes Inc.
1.6%
L.B. Foster Co.
1.5%
Material Fund Change [Text Block]
C000061067  
Shareholder Report [Line Items]  
Fund Name Mighty Mites Fund
Class Name Class I
Trading Symbol WEIMX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about TETON Westwood Mighty Mites Fund - Class I (the "Fund") for the period of October 1, 2025 to March 31, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.tetonadv.com/teton-westwood-funds/tw-mighty-mites/. You can also request this information by contacting us at (800) 422-3544.
Additional Information Phone Number (800) 422-3544
Additional Information Website https://www.tetonadv.com/teton-westwood-funds/tw-mighty-mites/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Mighty Mites Fund - Class I
$67
1.30%
Expenses Paid, Amount $ 67
Expense Ratio, Percent 1.30%
Factors Affecting Performance [Text Block]

How did the Fund perform?

For the six month period ended March 31, 2026, the Teton Westwood Mighty Mites Fund outperformed its broad-based benchmark, the  Russell 2000 Index, and its comparative, the Dow Jones U.S. Micro-Cap Total Stock Market Index. Performance was driven by strength across our industrial holdings, particularly within aerospace and defense. This was partially offset by the Fund’s underweight positions in energy and healthcare, primarily biotechnology. Contributors to performance included Astronics Corp, Ultra Clean Holdings, Inc., and Myers Industries, Inc. Detractors from the portfolio included Gibraltar Industries, Inc., Full House Resorts, Inc., and Eastern Company.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results. 
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
TETON Westwood Mighty Mites Fund - Class I
Russell 2000 Index
Dow Jones U.S. Micro-Cap Total Stock Market Index
3/16
500,000
500,000
500,000
3/17
621,893
631,100
636,592
3/18
688,621
705,507
721,756
3/19
668,223
719,970
720,453
3/20
496,790
547,249
532,431
3/21
897,695
1,066,314
1,167,044
3/22
891,489
1,004,575
927,793
3/23
849,038
887,944
722,114
3/24
966,841
1,062,957
814,905
3/25
906,922
1,020,333
777,473
3/26
1,158,546
1,282,762
1,029,958
AssetsNet $ 181,070,086
Holdings Count | Holding 277
Advisory Fees Paid, Amount $ 917,849
InvestmentCompanyPortfolioTurnover 1.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$181,070,086
  • Number of Portfolio Holdings277
  • Portfolio Turnover Rate1%
  • Management Fees$917,849
Holdings [Text Block]

Portfolio Weighting (% of net assets)

Table Summary
Common Stocks
97.8%
U.S. Government Obligations
2.1%
Preferred Stocks
0.1%
Other Assets and Liabilities (Net)Footnote Reference*
(0.0)%
FootnoteDescription
Footnote*
Amount represents greater than (0.05%)

Industry Allocation (% of net assets)

Group By Industry Chart
Table Summary
Industry Weighting
.
Financial Services
15.1%
Diversified Industrial
12.9%
Health Care
4.9%
Equipment and Supplies
4.8%
Aviation: Parts and Services
4.2%
Building and Construction
4.1%
Machinery
3.7%
Electronics
3.6%
Other Industry sectors
46.7%
Other Assets and Liabilities (Net)Footnote Reference*
(0.0)%
FootnoteDescription
Footnote*
Amount represents greater than (0.05%)
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
Myers Industries Inc.
2.9%
Astronics Corp.
2.9%
Gencor Industries Inc.
2.1%
Park-Ohio Holdings Corp.
2.1%
Burnham Holdings Inc.
2.0%
The Monarch Cement Co.
1.8%
Rush Enterprises Inc.
1.7%
Capital City Bank Group Inc.
1.6%
Nobility Homes Inc.
1.6%
L.B. Foster Co.
1.5%
Material Fund Change [Text Block]
C000002927  
Shareholder Report [Line Items]  
Fund Name Mighty Mites Fund
Class Name Class A
Trading Symbol WMMAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about TETON Westwood Mighty Mites Fund - Class A (the "Fund") for the period of October 1, 2025 to March 31, 2026
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at https://www.tetonadv.com/teton-westwood-funds/tw-mighty-mites/. You can also request this information by contacting us at (800) 422-3544.
Additional Information Phone Number (800) 422-3544
Additional Information Website https://www.tetonadv.com/teton-westwood-funds/tw-mighty-mites/
Expenses [Text Block]

What were the Fund costs for the last six months? 

(based on a hypothetical $10,000 investment)

Table Summary
Class Name
Costs of a $10k Investment
Costs Paid as a % of a $10k Investment
Mighty Mites Fund - Class A
$80
1.55%
Expenses Paid, Amount $ 80
Expense Ratio, Percent 1.55%
Factors Affecting Performance [Text Block]

How did the Fund perform?

For the six month period ended March 31, 2026, the Teton Westwood Mighty Mites Fund outperformed its broad-based benchmark, the  Russell 2000 Index, and its comparative, the Dow Jones U.S. Micro-Cap Total Stock Market Index. Performance was driven by strength across our industrial holdings, particularly within aerospace and defense. This was partially offset by the Fund’s underweight positions in energy and healthcare, primarily biotechnology. Contributors to performance included Astronics Corp, Ultra Clean Holdings, Inc., and Myers Industries, Inc. Detractors from the portfolio included Gibraltar Industries, Inc., Full House Resorts, Inc., and Eastern Company.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future results. 
Line Graph [Table Text Block]
Growth of 10K Chart
Table Summary
TETON Westwood Mighty Mites Fund - Class A
TETON Westwood Mighty Mites Fund - Class A (includes sales charge)
Russell 2000 Index
Dow Jones U.S. Micro-Cap Total Stock Market Index
3/16
10,000
10,000
10,000
10,000
3/17
12,374
11,879
12,622
12,732
3/18
13,636
12,567
14,110
14,435
3/19
13,170
11,652
14,399
14,409
3/20
9,740
8,272
10,945
10,649
3/21
17,533
14,296
21,326
23,341
3/22
17,367
13,594
20,091
18,556
3/23
16,498
12,398
17,759
14,442
3/24
18,748
13,524
21,259
16,298
3/25
17,541
12,148
20,407
15,549
3/26
22,336
14,849
25,655
20,599
AssetsNet $ 181,070,086
Holdings Count | Holding 277
Advisory Fees Paid, Amount $ 917,849
InvestmentCompanyPortfolioTurnover 1.00%
Additional Fund Statistics [Text Block]

Fund Statistics

  • Total Net Assets$181,070,086
  • Number of Portfolio Holdings277
  • Portfolio Turnover Rate1%
  • Management Fees$917,849
Holdings [Text Block]

Portfolio Weighting (% of net assets)

Table Summary
Common Stocks
97.8%
U.S. Government Obligations
2.1%
Preferred Stocks
0.1%
Other Assets and Liabilities (Net)Footnote Reference*
(0.0)%
FootnoteDescription
Footnote*
Amount represents greater than (0.05%)

Industry Allocation (% of net assets)

Group By Industry Chart
Table Summary
Industry Weighting
.
Financial Services
15.1%
Diversified Industrial
12.9%
Health Care
4.9%
Equipment and Supplies
4.8%
Aviation: Parts and Services
4.2%
Building and Construction
4.1%
Machinery
3.7%
Electronics
3.6%
Other Industry sectors
46.7%
Other Assets and Liabilities (Net)Footnote Reference*
(0.0)%
FootnoteDescription
Footnote*
Amount represents greater than (0.05%)
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Table Summary
Myers Industries Inc.
2.9%
Astronics Corp.
2.9%
Gencor Industries Inc.
2.1%
Park-Ohio Holdings Corp.
2.1%
Burnham Holdings Inc.
2.0%
The Monarch Cement Co.
1.8%
Rush Enterprises Inc.
1.7%
Capital City Bank Group Inc.
1.6%
Nobility Homes Inc.
1.6%
L.B. Foster Co.
1.5%
Material Fund Change [Text Block]