CCM Community Impact Bond Fund CRA Shares Institutional Shares Retail Shares Fixed Income Risk Interest Rate Risk [Member] Prepayment Risk [Member] CRA-Qualifying Investments Strategy Risk Asset-Backed Securities Risk Certificates of Deposit Corporate Debt Securities Risk Counterparty Risk Credit Risk [Member] Extension Risk Impact Investing Risk Investment-Grade Debt Securities Risk Large Shareholder Transaction Risk Manager Risk Market Risk Mortgage-Backed Securities Risk Municipal Securities Risk Regulatory Risk U.S. Government Securities Risk Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes) Bloomberg Intermediate U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)