v3.26.3
Shareholder Report
 6 Months Ended
Aug. 31, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name CM ADVISORS FAMILY OF FUNDS
Entity Central Index Key 0001208252
Entity Investment Company Type N-1A
Document Period End Date Aug. 31, 2026
Shareholder Report Annual or Semi-Annual Semi-Annual Shareholder Report
C000029067  
Shareholder Report [Line Items]  
Fund Name CM Advisors Fixed Income Fund
Trading Symbol CMFIX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about CM Advisors Fixed Income Fund (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Additional Information [Text Block] You can find additional information about the Fund at https://cmadvisorsfunds.com/our-fund/cm-advisors-fixed-income-fund. You can also request this information by contacting us at (888) 859-5856.
Additional Information Phone Number (888) 859-5856
Additional Information Website <span style="font-weight: 700; box-sizing: border-box; color: rgb(0, 0, 0); display: inline; flex-wrap: nowrap; font-size: 12px; grid-area: auto; line-height: 18px; margin: 0px; overflow: visible; text-align: left; text-align-last: left; white-space-collapse: preserve-breaks;">https://cmadvisorsfunds.com/our-fund/cm-advisors-fixed-income-fund</span>
Expenses [Text Block]

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

(based on a hypothetical $10,000 investment)

Table Summary
Fund Name
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
CM Advisors Fixed Income Fund
$44
0.87%
Expenses Paid, Amount $ 44
Expense Ratio, Percent 0.87%
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]
Growth of 10K Chart
Table Summary
CM Advisors Fixed Income Fund
Bloomberg U.S. Aggregate Bond Index
Aug-2016
$10,000
$10,000
Aug-2017
$10,321
$10,049
Aug-2018
$10,357
$9,944
Aug-2019
$10,386
$10,955
Aug-2020
$10,580
$11,664
Aug-2021
$10,822
$11,655
Aug-2022
$10,625
$10,313
Aug-2023
$10,948
$10,189
Aug-2024
$12,201
$10,933
Aug-2025
$13,119
$11,276
Aug-2026
$13,529
$11,489
Average Annual Return [Table Text Block]

Average Annual Total Returns 

Table Summary
1 Year
5 Years
10 Years
CM Advisors Fixed Income Fund
3.12%
4.57%
3.07%
Bloomberg U.S. Aggregate Bond Index
1.89%
-0.29%
1.40%

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 (888) 859-5856.
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 $ 31,785,220
Holdings Count | Holding 87
Advisory Fees Paid, Amount $ 0
InvestmentCompanyPortfolioTurnover 15.00%
Additional Fund Statistics [Text Block]

Fund Statistics 

  • Net Assets$31,785,220
  • Number of Portfolio Holdings87
  • Advisory Fee (net of waivers)$0
  • Portfolio Turnover15%
Holdings [Text Block]

Asset Weighting (% of total investments)

Group By Asset Type Chart
Table Summary
Value
Value
Common Stocks
10.9%
Corporate Bonds
75.1%
Money Market Funds
5.3%
U.S. Treasury Obligations
8.7%

Sector Weighting (% of net assets)

Group By Sector Chart
Table Summary
Value
Value
Other Assets in Excess of Liabilities
1.2%
Real Estate
0.7%
Health Care
1.7%
Consumer Staples
1.9%
Information Technology
2.0%
Communication Services
2.3%
Utilities
4.3%
Money Market Funds
5.3%
U.S. Treasury Obligations
8.6%
Consumer Discretionary
9.8%
Industrials
11.9%
Financials
13.1%
Materials
13.4%
Energy
23.8%

Top 10 Holdings (% of net assets)

Table Summary
Holding Name
% of Net Assets
PHI Group, Inc.
10.7%
Occidental Petroleum Corporation, 7.875%, due 09/15/31
1.9%
United Rentals North America, Inc., 5.250%, due 01/15/30
1.9%
Olin Corporation, 5.000%, due 02/01/30
1.8%
Exelon Corporation, 7.600%, due 04/01/32
1.7%
Masco Corporation, 7.750%, due 08/01/29
1.7%
Polaris, Inc., 6.950%, due 03/15/29
1.6%
Jacobs Engineering Group, Inc., 5.900%, due 03/01/33
1.6%
U.S. Treasury Notes, 4.625%, due 11/15/26
1.6%
U.S. Treasury Notes, 4.250%, due 11/30/26
1.6%
Material Fund Change [Text Block]

Material Fund Changes

No material changes occurred during the period ended August 31, 2026.