v3.25.4
Shareholder Report
 12 Months Ended
Dec. 31, 2025
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSR
Amendment Flag false
Registrant Name SPIRIT OF AMERICA INVESTMENT FUND INC
Entity Central Index Key 0001039667
Entity Investment Company Type N-1A
Document Period End Date Dec. 31, 2025
Shareholder Report Annual or Semi-Annual Annual Shareholder Report
C000073513  
Shareholder Report [Line Items]  
Fund Name Spirit of America Income Fund
Class Name Class A Shares
Trading Symbol SOAIX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Spirit of America Income Fund (the "Fund") for the period of January 1, 2025 through December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at funddocs.filepoint.com/soa/. You can also request this information by contacting us at (516) 390-5565.
Additional Information Phone Number (516) 390-5565
Additional Information Website funddocs.filepoint.com/soa/
Expenses [Text Block]

What were the Fund’s costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class A Shares
$118
1.14%
Expenses Paid, Amount $ 118
Expense Ratio, Percent 1.14%
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of how the Fund will perform in the future.
Line Graph [Table Text Block]
Chart showing performance over last 10 years or since inception
Spirit of America Income Fund - Class A Shares
Spirit of America Income Fund - Class A Shares - with load
Bloomberg U.S. Aggregate Bond Index
12/31/15
$10,000
$9,526
$10,000
12/31/16
$10,499
$10,002
$10,265
12/31/17
$11,287
$10,753
$10,628
12/31/18
$11,190
$10,660
$10,629
12/31/19
$12,492
$11,900
$11,556
12/31/20
$13,235
$12,608
$12,423
12/31/21
$13,842
$13,186
$12,232
12/31/22
$12,086
$11,513
$10,641
12/31/23
$12,925
$12,312
$11,229
12/31/24
$13,618
$12,973
$11,369
12/31/25
$14,504
$13,816
$12,199
Average Annual Return [Table Text Block]
1 Year
5 Years
10 Years
Spirit of America Income Fund - Class A Shares
Without Load
6.50%
1.85%
3.79%
With Load
1.47%
0.86%
3.29%
Bloomberg U.S. Aggregate Bond Index
7.30%
-0.36%
2.01%
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
AssetsNet $ 46,915,132
Holdings Count | Holding 119
Advisory Fees Paid, Amount $ 229,370
InvestmentCompanyPortfolioTurnover 0.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$46,915,132
  • Number of Portfolio Holdings119
  • Advisory Fee (net of waivers)$229,370
  • Portfolio Turnover0%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Liabilities in Excess of Other Assets
-1.1%
P&C Insurance
2.7%
Midstream - Oil & Gas
2.9%
Institutional Brokerage
3.2%
Higher Education
3.4%
Econ & Indust Development
3.4%
Miscellaneous Tax
4.6%
Integrated Electric Utilities
4.6%
Banks
5.0%
Other
5.3%
Electricity And Public Power
6.0%
Hospitals
6.5%
Local Authority
7.9%
Tobacco
8.9%
Life Insurance
9.5%
Other Sectors
27.2%
Material Fund Change [Text Block]

Material Fund Changes

No material changes occurred during the year ended December 31, 2025. 
C000167229  
Shareholder Report [Line Items]  
Fund Name Spirit of America Income Fund
Class Name Class C Shares
Trading Symbol SACTX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Spirit of America Income Fund (the "Fund") for the period of January 1, 2025 through December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at funddocs.filepoint.com/soa/. You can also request this information by contacting us at (516) 390-5565.
Additional Information Phone Number (516) 390-5565
Additional Information Website funddocs.filepoint.com/soa/
Expenses [Text Block]

What were the Fund’s costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class C Shares
$195
1.89%
Expenses Paid, Amount $ 195
Expense Ratio, Percent 1.89%
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of how the Fund will perform in the future.
Line Graph [Table Text Block]
Chart showing performance over last 10 years or since inception
Spirit of America Income Fund - Class C Shares
Spirit of America Income Fund - Class C Shares - with load
Bloomberg U.S. Aggregate Bond Index
Mar-2016
$10,000
$10,000
$10,000
Dec-2016
$10,243
$10,243
$10,081
Dec-2017
$10,936
$10,936
$10,438
Dec-2018
$10,751
$10,751
$10,439
Dec-2019
$11,912
$11,912
$11,349
Dec-2020
$12,529
$12,529
$12,201
Dec-2021
$12,995
$12,995
$12,013
Dec-2022
$11,262
$11,262
$10,450
Dec-2023
$11,966
$11,966
$11,028
Dec-2024
$12,502
$12,502
$11,166
Dec-2025
$13,215
$13,215
$11,981
Average Annual Return [Table Text Block]
1 Year
5 Years
Since Inception (March 15, 2016)
Spirit of America Income Fund - Class C Shares
Without Load
5.71%
1.07%
2.89%
With Load
4.71%
1.07%
2.89%
Bloomberg U.S. Aggregate Bond Index
7.30%
-0.36%
1.86%
Performance Inception Date Mar. 15, 2016
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
AssetsNet $ 46,915,132
Holdings Count | Holding 119
Advisory Fees Paid, Amount $ 229,370
InvestmentCompanyPortfolioTurnover 0.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$46,915,132
  • Number of Portfolio Holdings119
  • Advisory Fee (net of waivers)$229,370
  • Portfolio Turnover0%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Liabilities in Excess of Other Assets
-1.1%
P&C Insurance
2.7%
Midstream - Oil & Gas
2.9%
Institutional Brokerage
3.2%
Higher Education
3.4%
Econ & Indust Development
3.4%
Miscellaneous Tax
4.6%
Integrated Electric Utilities
4.6%
Banks
5.0%
Other
5.3%
Electricity And Public Power
6.0%
Hospitals
6.5%
Local Authority
7.9%
Tobacco
8.9%
Life Insurance
9.5%
Other Sectors
27.2%
Material Fund Change [Text Block]

Material Fund Changes

No material changes occurred during the year ended December 31, 2025. 
C000219380  
Shareholder Report [Line Items]  
Fund Name Spirit of America Income Fund
Class Name Institutional Shares
Trading Symbol SOITX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Spirit of America Income Fund (the "Fund") for the period of January 1, 2025 through December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at funddocs.filepoint.com/soa/. You can also request this information by contacting us at (516) 390-5565.
Additional Information Phone Number (516) 390-5565
Additional Information Website funddocs.filepoint.com/soa/
Expenses [Text Block]

What were the Fund’s costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Institutional Shares
$93
0.90%
Expenses Paid, Amount $ 93
Expense Ratio, Percent 0.90%
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of how the Fund will perform in the future.
Line Graph [Table Text Block]
Chart showing performance over last 10 years or since inception
Spirit of America Income Fund - Institutional Shares
Bloomberg U.S. Aggregate Bond Index
May-2020
$100,000
$100,000
Dec-2020
$109,894
$102,524
Dec-2021
$115,207
$100,943
Dec-2022
$100,796
$87,810
Dec-2023
$108,150
$92,665
Dec-2024
$114,110
$93,824
Dec-2025
$121,805
$100,674
Average Annual Return [Table Text Block]
1 Year
5 Years
Since Inception (May 1, 2020)
Spirit of America Income Fund - Institutional Shares
6.74%
2.08%
3.54%
Bloomberg U.S. Aggregate Bond Index
7.30%
-0.36%
0.12%
Performance Inception Date May 01, 2020
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
AssetsNet $ 46,915,132
Holdings Count | Holding 119
Advisory Fees Paid, Amount $ 229,370
InvestmentCompanyPortfolioTurnover 0.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$46,915,132
  • Number of Portfolio Holdings119
  • Advisory Fee (net of waivers)$229,370
  • Portfolio Turnover0%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Liabilities in Excess of Other Assets
-1.1%
P&C Insurance
2.7%
Midstream - Oil & Gas
2.9%
Institutional Brokerage
3.2%
Higher Education
3.4%
Econ & Indust Development
3.4%
Miscellaneous Tax
4.6%
Integrated Electric Utilities
4.6%
Banks
5.0%
Other
5.3%
Electricity And Public Power
6.0%
Hospitals
6.5%
Local Authority
7.9%
Tobacco
8.9%
Life Insurance
9.5%
Other Sectors
27.2%
Material Fund Change [Text Block]

Material Fund Changes

No material changes occurred during the year ended December 31, 2025. 
C000003857  
Shareholder Report [Line Items]  
Fund Name Spirit of America Large Cap Value Fund
Class Name Class A Shares
Trading Symbol SOAVX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Spirit of America Large Cap Value Fund (the "Fund") for the period of January 1, 2025 through December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at funddocs.filepoint.com/soa/. You can also request this information by contacting us at (516) 390-5565.
Additional Information Phone Number (516) 390-5565
Additional Information Website funddocs.filepoint.com/soa/
Expenses [Text Block]

What were the Fund’s costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class A Shares
$167
1.53%
Expenses Paid, Amount $ 167
Expense Ratio, Percent 1.53%
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of how the Fund will perform in the future.
Average Annual Return [Table Text Block]

Average Annual Total Returns 

1 Year
5 Years
10 Years
Spirit of America Large Cap Value Fund - Class A Shares
Without Load
17.77%
15.98%
14.20%
With Load
11.58%
14.73%
13.59%
S&P 500® Index
17.88%
14.42%
14.82%

The Fund's past performance is not a good predictor of how the Fund will perform in the future. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. For updated performance call (516) 390-5565.
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
AssetsNet $ 209,342,142
Holdings Count | Holding 157
Advisory Fees Paid, Amount $ 1,914,477
InvestmentCompanyPortfolioTurnover 10.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$209,342,142
  • Number of Portfolio Holdings157
  • Advisory Fee $1,914,477
  • Portfolio Turnover10%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Liabilities in Excess of Other Assets
-1.1%
Materials
1.2%
Real Estate Investment Trusts (REITs)
1.7%
Energy
3.0%
Consumer Staples
5.6%
Utilities
5.7%
Consumer Discretionary
6.6%
Health Care
7.6%
Industrials
9.0%
Financials
10.5%
Communications
10.7%
Technology
39.5%
C000167227  
Shareholder Report [Line Items]  
Fund Name Spirit of America Large Cap Value Fund
Class Name Class C Shares
Trading Symbol SACVX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Spirit of America Large Cap Value Fund (the "Fund") for the period of January 1, 2025 through December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at funddocs.filepoint.com/soa/. You can also request this information by contacting us at (516) 390-5565.
Additional Information Phone Number (516) 390-5565
Additional Information Website funddocs.filepoint.com/soa/
Expenses [Text Block]

What were the Fund’s costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class C Shares
$242
2.23%
Expenses Paid, Amount $ 242
Expense Ratio, Percent 2.23%
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of how the Fund will perform in the future.
Average Annual Return [Table Text Block]

Average Annual Total Returns 

1 Year
5 Years
Since Inception (March 15, 2016)
Spirit of America Large Cap Value Fund - Class C Shares
Without Load
16.95%
15.17%
13.90%
With Load
15.95%
15.17%
13.90%
S&P 500® Index
17.88%
14.42%
15.25%

The Fund's past performance is not a good predictor of how the Fund will perform in the future. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. For updated performance call (516) 390-5565.
Performance Inception Date Mar. 15, 2016
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
AssetsNet $ 209,342,142
Holdings Count | Holding 157
Advisory Fees Paid, Amount $ 1,914,477
InvestmentCompanyPortfolioTurnover 10.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$209,342,142
  • Number of Portfolio Holdings157
  • Advisory Fee $1,914,477
  • Portfolio Turnover10%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Liabilities in Excess of Other Assets
-1.1%
Materials
1.2%
Real Estate Investment Trusts (REITs)
1.7%
Energy
3.0%
Consumer Staples
5.6%
Utilities
5.7%
Consumer Discretionary
6.6%
Health Care
7.6%
Industrials
9.0%
Financials
10.5%
Communications
10.7%
Technology
39.5%
C000219378  
Shareholder Report [Line Items]  
Fund Name Spirit of America Large Cap Value Fund
Class Name Institutional Shares
Trading Symbol SOIVX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Spirit of America Large Cap Value Fund (the "Fund") for the period of January 1, 2025 through December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at funddocs.filepoint.com/soa/. You can also request this information by contacting us at (516) 390-5565.
Additional Information Phone Number (516) 390-5565
Additional Information Website funddocs.filepoint.com/soa/
Expenses [Text Block]

What were the Fund’s costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Institutional Shares
$135
1.23%
Expenses Paid, Amount $ 135
Expense Ratio, Percent 1.23%
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of how the Fund will perform in the future.
Average Annual Return [Table Text Block]

Average Annual Total Returns 

1 Year
5 Years
Since Inception (May 1, 2020)
Spirit of America Large Cap Value Fund - Institutional Shares
18.13%
16.33%
20.21%
S&P 500® Index
17.88%
14.42%
18.63%

The Fund's past performance is not a good predictor of how the Fund will perform in the future. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. For updated performance call (516) 390-5565.
Performance Inception Date May 01, 2020
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
AssetsNet $ 209,342,142
Holdings Count | Holding 157
Advisory Fees Paid, Amount $ 1,914,477
InvestmentCompanyPortfolioTurnover 10.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$209,342,142
  • Number of Portfolio Holdings157
  • Advisory Fee $1,914,477
  • Portfolio Turnover10%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Liabilities in Excess of Other Assets
-1.1%
Materials
1.2%
Real Estate Investment Trusts (REITs)
1.7%
Energy
3.0%
Consumer Staples
5.6%
Utilities
5.7%
Consumer Discretionary
6.6%
Health Care
7.6%
Industrials
9.0%
Financials
10.5%
Communications
10.7%
Technology
39.5%
C000059931  
Shareholder Report [Line Items]  
Fund Name Spirit of America Municipal Tax Free Bond Fund
Class Name Class A Shares
Trading Symbol SOAMX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Spirit of America Municipal Tax Free Bond Fund (the "Fund") for the period of January 1, 2025 through December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at funddocs.filepoint.com/soa/. You can also request this information by contacting us at (516) 390-5565.
Additional Information Phone Number (516) 390-5565
Additional Information Website funddocs.filepoint.com/soa/
Expenses [Text Block]

What were the Fund’s costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class A Shares
$94
0.93%
Expenses Paid, Amount $ 94
Expense Ratio, Percent 0.93%
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of how the Fund will perform in the future.
Average Annual Return [Table Text Block]

Average Annual Total Returns 

1 Year
5 Years
10 Years
Spirit of America Municipal Tax Free Bond Fund - Class A Shares
Without Load
3.91%
0.30%
1.63%
With Load
-1.07%
-0.68%
1.13%
Bloomberg Municipal Bond Index
4.25%
0.80%
2.34%

The Fund's past performance is not a good predictor of how the Fund will perform in the future. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. For updated performance call (516) 390-5565.
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
AssetsNet $ 23,902,426
Holdings Count | Holding 109
Advisory Fees Paid, Amount $ 27,128
InvestmentCompanyPortfolioTurnover 26.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$23,902,426
  • Number of Portfolio Holdings109
  • Advisory Fee (net of waivers)$27,128
  • Portfolio Turnover26%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Liabilities in Excess of Other Assets
-0.8%
Money Market Funds
0.9%
Idr & Pcr
4.4%
Local
4.5%
Special Tax
8.3%
Education
10.8%
Health Care
11.3%
Lease
11.5%
Transportation
12.8%
Utilities
16.2%
Housing
20.1%
C000167228  
Shareholder Report [Line Items]  
Fund Name Spirit of America Municipal Tax Free Bond Fund
Class Name Class C Shares
Trading Symbol SACFX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Spirit of America Municipal Tax Free Bond Fund (the "Fund") for the period of January 1, 2025 through December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at funddocs.filepoint.com/soa/. You can also request this information by contacting us at (516) 390-5565.
Additional Information Phone Number (516) 390-5565
Additional Information Website funddocs.filepoint.com/soa/
Expenses [Text Block]

What were the Fund’s costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class C Shares
$180
1.78%
Expenses Paid, Amount $ 180
Expense Ratio, Percent 1.78%
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of how the Fund will perform in the future.
Average Annual Return [Table Text Block]

Average Annual Total Returns 

1 Year
5 Years
Since Inception (March 15, 2016)
Spirit of America Municipal Tax Free Bond Fund - Class C Shares
Without Load
3.05%
-0.54%
0.69%
With Load
2.05%
-0.54%
0.69%
Bloomberg Municipal Bond Index
4.25%
0.80%
2.29%

The Fund's past performance is not a good predictor of how the Fund will perform in the future. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. For updated performance call (516) 390-5565.
Performance Inception Date Mar. 15, 2016
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
AssetsNet $ 23,902,426
Holdings Count | Holding 109
Advisory Fees Paid, Amount $ 27,128
InvestmentCompanyPortfolioTurnover 26.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$23,902,426
  • Number of Portfolio Holdings109
  • Advisory Fee (net of waivers)$27,128
  • Portfolio Turnover26%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Liabilities in Excess of Other Assets
-0.8%
Money Market Funds
0.9%
Idr & Pcr
4.4%
Local
4.5%
Special Tax
8.3%
Education
10.8%
Health Care
11.3%
Lease
11.5%
Transportation
12.8%
Utilities
16.2%
Housing
20.1%
C000219379  
Shareholder Report [Line Items]  
Fund Name Spirit of America Municipal Tax Free Bond Fund
Class Name Institutional Shares
Trading Symbol SOIMX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Spirit of America Municipal Tax Free Bond Fund (the "Fund") for the period of January 1, 2025 through December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at funddocs.filepoint.com/soa/. You can also request this information by contacting us at (516) 390-5565.
Additional Information Phone Number (516) 390-5565
Additional Information Website funddocs.filepoint.com/soa/
Expenses [Text Block]

What were the Fund’s costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Institutional Shares
$79
0.77%
Expenses Paid, Amount $ 79
Expense Ratio, Percent 0.77%
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of how the Fund will perform in the future.
Average Annual Return [Table Text Block]

Average Annual Total Returns 

1 Year
5 Years
Since Inception (May 1, 2020)
Spirit of America Municipal Tax Free Bond Fund - Institutional Shares
4.08%
0.45%
1.16%
Bloomberg Municipal Bond Index
4.25%
0.80%
1.90%

The Fund's past performance is not a good predictor of how the Fund will perform in the future. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. For updated performance call (516) 390-5565.
Performance Inception Date May 01, 2020
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
AssetsNet $ 23,902,426
Holdings Count | Holding 109
Advisory Fees Paid, Amount $ 27,128
InvestmentCompanyPortfolioTurnover 26.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$23,902,426
  • Number of Portfolio Holdings109
  • Advisory Fee (net of waivers)$27,128
  • Portfolio Turnover26%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Liabilities in Excess of Other Assets
-0.8%
Money Market Funds
0.9%
Idr & Pcr
4.4%
Local
4.5%
Special Tax
8.3%
Education
10.8%
Health Care
11.3%
Lease
11.5%
Transportation
12.8%
Utilities
16.2%
Housing
20.1%
C000003855  
Shareholder Report [Line Items]  
Fund Name Spirit of America Real Estate Income and Growth Fund
Class Name Class A Shares
Trading Symbol SOAAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Spirit of America Real Estate Income and Growth Fund (the "Fund") for the period of January 1, 2025 through December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at funddocs.filepoint.com/soa/. You can also request this information by contacting us at (516) 390-5565.
Additional Information Phone Number (516) 390-5565
Additional Information Website funddocs.filepoint.com/soa/
Expenses [Text Block]

What were the Fund’s costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class A Shares
$162
1.62%
Expenses Paid, Amount $ 162
Expense Ratio, Percent 1.62%
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of how the Fund will perform in the future.
Average Annual Return [Table Text Block]

Average Annual Total Returns 

1 Year
5 Years
10 Years
Spirit of America Real Estate Income and Growth Fund - Class A Shares
Without Load
-0.94%
3.47%
4.24%
With Load
-6.10%
2.35%
3.68%
MSCI US REIT Index
2.94%
6.58%
5.71%
S&P 500® Index
17.88%
14.42%
14.82%

The Fund's past performance is not a good predictor of how the Fund will perform in the future. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. For updated performance call (516) 390-5565.
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
AssetsNet $ 65,079,432
Holdings Count | Holding 94
Advisory Fees Paid, Amount $ 692,931
InvestmentCompanyPortfolioTurnover 8.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$65,079,432
  • Number of Portfolio Holdings94
  • Advisory Fee $692,931
  • Portfolio Turnover8%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Other Assets in Excess of Liabilities
0.3%
Energy
0.6%
Communications
0.8%
Financials
0.9%
Industrials
1.1%
Consumer Discretionary
1.9%
Real Estate
94.4%
C000167226  
Shareholder Report [Line Items]  
Fund Name Spirit of America Real Estate Income and Growth Fund
Class Name Class C Shares
Trading Symbol SACRX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Spirit of America Real Estate Income and Growth Fund (the "Fund") for the period of January 1, 2025 through December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at funddocs.filepoint.com/soa/. You can also request this information by contacting us at (516) 390-5565.
Additional Information Phone Number (516) 390-5565
Additional Information Website funddocs.filepoint.com/soa/
Expenses [Text Block]

What were the Fund’s costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class C Shares
$230
2.32%
Expenses Paid, Amount $ 230
Expense Ratio, Percent 2.32%
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of how the Fund will perform in the future.
Average Annual Return [Table Text Block]

Average Annual Total Returns 

1 Year
5 Years
Since Inception (March 15, 2016)
Spirit of America Real Estate Income and Growth Fund - Class C Shares
Without Load
-1.66%
2.73%
3.66%
With Load
-2.56%
2.73%
3.66%
MSCI US REIT Index
2.94%
6.58%
5.62%
S&P 500® Index
17.88%
14.42%
15.25%

The Fund's past performance is not a good predictor of how the Fund will perform in the future. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. For updated performance call (516) 390-5565.
Performance Inception Date Mar. 15, 2016
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
AssetsNet $ 65,079,432
Holdings Count | Holding 94
Advisory Fees Paid, Amount $ 692,931
InvestmentCompanyPortfolioTurnover 8.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$65,079,432
  • Number of Portfolio Holdings94
  • Advisory Fee $692,931
  • Portfolio Turnover8%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Other Assets in Excess of Liabilities
0.3%
Energy
0.6%
Communications
0.8%
Financials
0.9%
Industrials
1.1%
Consumer Discretionary
1.9%
Real Estate
94.4%
C000219377  
Shareholder Report [Line Items]  
Fund Name Spirit of America Real Estate Income and Growth Fund
Class Name Institutional Shares
Trading Symbol SOIAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Spirit of America Real Estate Income and Growth Fund (the "Fund") for the period of January 1, 2025 through December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at funddocs.filepoint.com/soa/. You can also request this information by contacting us at (516) 390-5565.
Additional Information Phone Number (516) 390-5565
Additional Information Website funddocs.filepoint.com/soa/
Expenses [Text Block]

What were the Fund’s costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Institutional Shares
$132
1.32%
Expenses Paid, Amount $ 132
Expense Ratio, Percent 1.32%
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of how the Fund will perform in the future.
Average Annual Return [Table Text Block]

Average Annual Total Returns 

1 Year
5 Years
Since Inception (May 1, 2020)
Spirit of America Real Estate Income and Growth Fund - Institutional Shares
-0.78%
3.74%
5.95%
MSCI US REIT Index
2.94%
6.58%
9.44%
S&P 500® Index
17.88%
14.42%
18.63%

The Fund's past performance is not a good predictor of how the Fund will perform in the future. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. For updated performance call (516) 390-5565.
Performance Inception Date May 01, 2020
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
AssetsNet $ 65,079,432
Holdings Count | Holding 94
Advisory Fees Paid, Amount $ 692,931
InvestmentCompanyPortfolioTurnover 8.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$65,079,432
  • Number of Portfolio Holdings94
  • Advisory Fee $692,931
  • Portfolio Turnover8%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Other Assets in Excess of Liabilities
0.3%
Energy
0.6%
Communications
0.8%
Financials
0.9%
Industrials
1.1%
Consumer Discretionary
1.9%
Real Estate
94.4%
C000240591  
Shareholder Report [Line Items]  
Fund Name Spirit of America Utilities Fund
Class Name Class A Shares
Trading Symbol SOAUX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Spirit of America Utilities Fund (the "Fund") for the period of January 1, 2025 through December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at funddocs.filepoint.com/soa/. You can also request this information by contacting us at (516) 390-5565.
Additional Information Phone Number (516) 390-5565
Additional Information Website funddocs.filepoint.com/soa/
Expenses [Text Block]

What were the Fund’s costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class A Shares
$164
1.53%
Expenses Paid, Amount $ 164
Expense Ratio, Percent 1.53%
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of how the Fund will perform in the future.
Average Annual Return [Table Text Block]

Average Annual Total Returns 

1 Year
Since Inception (January 31, 2023)
Spirit of America Utilities Fund - Class A Shares
Without Load
14.56%
10.77%
With Load
7.96%
8.54%
S&P 500® Index
17.88%
21.19%
S&P Utilities Select Sector Index
16.04%
11.07%

The Fund's past performance is not a good predictor of how the Fund will perform in the future. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. For updated performance call (516) 390-5565.
Performance Inception Date Jan. 31, 2023
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
AssetsNet $ 50,428,941
Holdings Count | Holding 52
Advisory Fees Paid, Amount $ 313,064
InvestmentCompanyPortfolioTurnover 1.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$50,428,941
  • Number of Portfolio Holdings52
  • Advisory Fee (net of waivers)$313,064
  • Portfolio Turnover1%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Money Market Funds
1.8%
Energy
2.2%
Industrials
2.5%
Utilities
93.5%
C000240590  
Shareholder Report [Line Items]  
Fund Name Spirit of America Utilities Fund
Class Name Class C Shares
Trading Symbol SOCUX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Spirit of America Utilities Fund (the "Fund") for the period of January 1, 2025 through December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at funddocs.filepoint.com/soa/. You can also request this information by contacting us at (516) 390-5565.
Additional Information Phone Number (516) 390-5565
Additional Information Website funddocs.filepoint.com/soa/
Expenses [Text Block]

What were the Fund’s costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class C Shares
$244
2.29%
Expenses Paid, Amount $ 244
Expense Ratio, Percent 2.29%
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of how the Fund will perform in the future.
Average Annual Return [Table Text Block]

Average Annual Total Returns 

1 Year
Since Inception (January 31, 2023)
Spirit of America Utilities Fund - Class C Shares
Without Load
13.72%
9.92%
With Load
12.72%
9.92%
S&P 500® Index
17.88%
21.19%
S&P Utilities Select Sector Index
16.04%
11.07%

The Fund's past performance is not a good predictor of how the Fund will perform in the future. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. For updated performance call (516) 390-5565.
Performance Inception Date Jan. 31, 2023
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
AssetsNet $ 50,428,941
Holdings Count | Holding 52
Advisory Fees Paid, Amount $ 313,064
InvestmentCompanyPortfolioTurnover 1.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$50,428,941
  • Number of Portfolio Holdings52
  • Advisory Fee (net of waivers)$313,064
  • Portfolio Turnover1%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Money Market Funds
1.8%
Energy
2.2%
Industrials
2.5%
Utilities
93.5%
C000240589  
Shareholder Report [Line Items]  
Fund Name Spirit of America Utilities Fund
Class Name Institutional Shares
Trading Symbol SOIUX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Spirit of America Utilities Fund (the "Fund") for the period of January 1, 2025 through December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at funddocs.filepoint.com/soa/. You can also request this information by contacting us at (516) 390-5565.
Additional Information Phone Number (516) 390-5565
Additional Information Website funddocs.filepoint.com/soa/
Expenses [Text Block]

What were the Fund’s costs for the last year?

(based on a hypothetical $10,000 investment)

Class Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Institutional Shares
$138
1.28%
Expenses Paid, Amount $ 138
Expense Ratio, Percent 1.28%
Performance Past Does Not Indicate Future [Text] The Fund's past performance is not a good predictor of how the Fund will perform in the future.
Average Annual Return [Table Text Block]

Average Annual Total Returns 

1 Year
Since Inception (January 31, 2023)
Spirit of America Utilities Fund - Institutional Shares
14.85%
11.03%
S&P 500® Index
17.88%
21.19%
S&P Utilities Select Sector Index
16.04%
11.07%

The Fund's past performance is not a good predictor of how the Fund will perform in the future. The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares. For updated performance call (516) 390-5565.
Performance Inception Date Jan. 31, 2023
No Deduction of Taxes [Text Block] The graph and table do not reflect the deduction of taxes that a shareholder would pay on fund distributions or redemption of fund shares.
AssetsNet $ 50,428,941
Holdings Count | Holding 52
Advisory Fees Paid, Amount $ 313,064
InvestmentCompanyPortfolioTurnover 1.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$50,428,941
  • Number of Portfolio Holdings52
  • Advisory Fee (net of waivers)$313,064
  • Portfolio Turnover1%
Holdings [Text Block]

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Money Market Funds
1.8%
Energy
2.2%
Industrials
2.5%
Utilities
93.5%