v3.25.2
Shareholder Report, Average Annual Return (Details)
 12 Months Ended 60 Months Ended 120 Months Ended
May 31, 2025
May 31, 2025
May 31, 2025
C000005044      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name CCM Community Impact Bond Fund, CRA Shares    
C000048038      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name CCM Community Impact Bond Fund, Institutional Shares    
C000048039      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name CCM Community Impact Bond Fund, Retail Shares    
Without Sales Load [Member] | C000005044      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.13% (0.73%) 0.78%
Without Sales Load [Member] | C000048038      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.61% (0.28%) 1.24%
Without Sales Load [Member] | C000048039      
Average Annual Return [Line Items]      
Average Annual Return, Percent 5.24% (0.63%) 0.89%
Bloomberg U.S. Aggregate Bond Index (TR) (USD)      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index (TR) (USD)    
Average Annual Return, Percent 5.46% (0.90%) 1.49%
Bloomberg U.S. Aggregate Bond Index (TR) (USD)      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index (TR) (USD)    
Average Annual Return, Percent 5.46% (0.90%) 1.49%
Bloomberg U.S. Aggregate Bond Index (TR) (USD)      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Bloomberg U.S. Aggregate Bond Index (TR) (USD)    
Average Annual Return, Percent 5.46% (0.90%) 1.49%
Bloomberg Intermediate U.S. Aggregate Bond Index (USD)      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Bloomberg Intermediate U.S. Aggregate Bond Index (USD)    
Average Annual Return, Percent 6.31% 0.06% 1.61%
Bloomberg Intermediate U.S. Aggregate Bond Index (USD)      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Bloomberg Intermediate U.S. Aggregate Bond Index (USD)    
Average Annual Return, Percent 6.31% 0.06% 1.61%
Bloomberg Intermediate U.S. Aggregate Bond Index (USD)      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Bloomberg Intermediate U.S. Aggregate Bond Index (USD)    
Average Annual Return, Percent 6.31% 0.06% 1.61%