v3.25.4
Shareholder Report
 6 Months Ended
Dec. 31, 2025
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name ASSET MANAGEMENT FUND
Entity Central Index Key 0000705318
Entity Investment Company Type N-1A
Document Period End Date Dec. 31, 2025
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
C000189198  
Shareholder Report [Line Items]  
Fund Name AAMA Equity Fund
Trading Symbol AMFEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about AAMA Equity Fund for the period of July 1, 2025 to December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at https://www.aamafunds.com/prospectuses-and-reports.html. You can also request this information by contacting us at (800) 701-9502
Additional Information Phone Number (800) 701-9502
Additional Information Website https://www.aamafunds.com/prospectuses-and-reports.html
Expenses [Text Block]

What were the Fund’s annualized costs for the last six months?

(based on a hypothetical $10,000 investment)

Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
AAMA Equity Fund
$61
1.16%
Expenses Paid, Amount $ 61
Expense Ratio, Percent 1.16%
AssetsNet $ 380,831,318
Holdings Count | Holding 39
Advisory Fees Paid, Amount $ 1,967,543
InvestmentCompanyPortfolioTurnover 0.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$380,831,318
  • Number of Portfolio Holdings39
  • Advisory Fee $1,967,543
  • Portfolio Turnover0%
Holdings [Text Block]

Asset Weighting (% of total investments)

Group By Asset Type Chart
Value
Value
Common Stocks
66.2%
Exchange-Traded Funds
24.3%
Money Market Funds
3.0%
U.S. Government & Agencies
6.5%

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Liabilities in Excess of Other Assets
-0.1%
Utilities
2.7%
Money Market
2.9%
Materials
3.3%
Health Care
3.9%
Consumer Discretionary
4.1%
Energy
4.8%
U.S. Treasury Obligations
6.5%
Consumer Staples
6.6%
Financials
7.1%
Communications
7.6%
Industrials
10.5%
Technology
15.7%
Exchange-Traded Funds
24.4%
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Holding Name
% of Net Assets
Vanguard S&P 500 ETF
14.1%
iShares Core S&P 500 ETF
10.3%
U.S. Treasury Bills, 3.771%, due 02/03/26
6.5%
Freeport-McMoRan, Inc.
3.3%
Alphabet, Inc. - Class A
3.1%
Exxon Mobil Corporation
2.9%
Visa, Inc. - Class A
2.9%
Walmart, Inc.
2.8%
Emerson Electric Company
2.7%
Grainger (W.W.), Inc.
2.7%
Material Fund Change [Text Block]

Material Fund Changes

No material changes occurred during the period ended December 31, 2025. 
C000189199  
Shareholder Report [Line Items]  
Fund Name AAMA Income Fund
Trading Symbol AMFIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about AAMA Income Fund for the period of July 1, 2025 to December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at https://www.aamafunds.com/prospectuses-and-reports.html. You can also request this information by contacting us at (800) 701-9502
Additional Information Phone Number (800) 701-9502
Additional Information Website https://www.aamafunds.com/prospectuses-and-reports.html
Expenses [Text Block]

What were the Fund’s annualized costs for the last six months?

(based on a hypothetical $10,000 investment)

Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
AAMA Income Fund
$42
0.83%
Expenses Paid, Amount $ 42
Expense Ratio, Percent 0.83%
AssetsNet $ 127,152,648
Holdings Count | Holding 17
Advisory Fees Paid, Amount $ 381,458
InvestmentCompanyPortfolioTurnover 6.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$127,152,648
  • Number of Portfolio Holdings17
  • Advisory Fee (net of waivers)$381,458
  • Portfolio Turnover6%
Holdings [Text Block]

Asset Weighting (% of total investments)

Group By Asset Type Chart
Value
Value
Money Market Funds
7.6%
Municipal Bonds
1.0%
U.S. Government Agencies
17.2%
U.S. Treasury Obligations
74.2%

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Other Assets in Excess of Liabilities
0.4%
Municipal Bonds
1.0%
Money Market Funds
7.6%
U.S. Government Agencies
17.1%
U.S. Treasury Obligations
73.9%

Top 10 Holdings (% of net assets)

Holding Name
% of Net Assets
U.S. Treasury Notes, 4.625%, due 11/15/26
11.9%
Federal National Mortgage Association, 2.125%, due 04/24/26
9.0%
U.S. Treasury Bills, 3.600%, due 04/07/26
7.8%
U.S. Treasury Notes, 3.500%, due 11/30/30
7.8%
U.S. Treasury Bills, 3.594%, due 06/18/26
7.7%
U.S. Treasury Notes, 0.500%, due 04/30/27
7.6%
U.S. Treasury Notes, 1.125%, due 02/29/28
7.5%
Federal National Mortgage Association, 0.750%, due 10/08/27
4.4%
U.S. Treasury Notes, 3.875%, due 09/30/29
4.0%
U.S. Treasury Notes, 3.875%, due 07/15/28
4.0%
Material Fund Change [Text Block]

Material Fund Changes

No material changes occurred during the period ended December 31, 2025. 
C000041028  
Shareholder Report [Line Items]  
Fund Name Large Cap Equity Fund
Trading Symbol IICAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Large Cap Equity Fund for the period of July 1, 2025 to December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at https://www.amffunds.com/html/materials.html. You can also request this information by contacting us at 1-800-247-9780
Additional Information Phone Number 1-800-247-9780
Additional Information Website https://www.amffunds.com/html/materials.html
Expenses [Text Block]

What were the Fund’s annualized costs for the last six months?

(based on a hypothetical $10,000 investment)

Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Large Cap Equity Fund - Class AMF
$86
1.62%
Expenses Paid, Amount $ 86
Expense Ratio, Percent 1.62%
AssetsNet $ 51,349,150
Holdings Count | Holding 54
Advisory Fees Paid, Amount $ 143,390
InvestmentCompanyPortfolioTurnover 4.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$51,349,150
  • Number of Portfolio Holdings54
  • Advisory Fee (net of waivers)$143,390
  • Portfolio Turnover4%
Holdings [Text Block]

Asset Weighting (% of total investments)

Group By Asset Type Chart
Value
Value
Common Stocks
100.0%

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Other Assets in Excess of Liabilities
3.6%
Materials
1.5%
Utilities
1.8%
Real Estate
2.2%
Energy
3.1%
Consumer Staples
5.0%
Consumer Discretionary
7.9%
Communication Services
8.7%
Industrials
8.8%
Health Care
10.0%
Financials
14.5%
Information Technology
32.9%
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Holding Name
% of Net Assets
Cummins, Inc.
4.1%
Alphabet, Inc. - Class A
4.0%
Mastercard, Inc. - Class A
3.9%
Apple, Inc.
3.8%
Microsoft Corporation
3.7%
Accenture plc - Class A
3.7%
HCA Healthcare, Inc.
3.6%
KLA Corporation
3.5%
Broadcom, Inc.
3.5%
NVIDIA Corporation
3.5%
Material Fund Change [Text Block]

Material Fund Changes

No material changes occurred during the period ended December 31, 2025. 
C000072278  
Shareholder Report [Line Items]  
Fund Name Large Cap Equity Fund
Trading Symbol IICHX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about Large Cap Equity Fund for the period of July 1, 2025 to December 31, 2025.
Additional Information [Text Block] You can find additional information about the Fund at https://www.amffunds.com/html/materials.html. You can also request this information by contacting us at 1-800-247-9780
Additional Information Phone Number 1-800-247-9780
Additional Information Website https://www.amffunds.com/html/materials.html
Expenses [Text Block]

What were the Fund’s annualized costs for the last six months?

(based on a hypothetical $10,000 investment)

Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Large Cap Equity Fund - Class H
$80
1.51%
Expenses Paid, Amount $ 80
Expense Ratio, Percent 1.51%
AssetsNet $ 51,349,150
Holdings Count | Holding 54
Advisory Fees Paid, Amount $ 143,390
InvestmentCompanyPortfolioTurnover 4.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$51,349,150
  • Number of Portfolio Holdings54
  • Advisory Fee (net of waivers)$143,390
  • Portfolio Turnover4%
Holdings [Text Block]

Asset Weighting (% of total investments)

Group By Asset Type Chart
Value
Value
Common Stocks
100.0%

Sector Weighting (% of net assets)

Group By Sector Chart
Value
Value
Other Assets in Excess of Liabilities
3.6%
Materials
1.5%
Utilities
1.8%
Real Estate
2.2%
Energy
3.1%
Consumer Staples
5.0%
Consumer Discretionary
7.9%
Communication Services
8.7%
Industrials
8.8%
Health Care
10.0%
Financials
14.5%
Information Technology
32.9%
Largest Holdings [Text Block]

Top 10 Holdings (% of net assets)

Holding Name
% of Net Assets
Cummins, Inc.
4.1%
Alphabet, Inc. - Class A
4.0%
Mastercard, Inc. - Class A
3.9%
Apple, Inc.
3.8%
Microsoft Corporation
3.7%
Accenture plc - Class A
3.7%
HCA Healthcare, Inc.
3.6%
KLA Corporation
3.5%
Broadcom, Inc.
3.5%
NVIDIA Corporation
3.5%
Material Fund Change [Text Block]

Material Fund Changes

No material changes occurred during the period ended December 31, 2025.