v3.26.3
S000010615 [Member] Investment Objectives and Goals - S000010615 [Member]
May 31, 2026
Prospectus [Line Items]  
Risk/Return [Heading] Summary of the Fund
Objective [Heading] Investment Objective
Objective, Primary [Text Block]
Columbia High Yield Municipal Fund (the Fund) seeks total return, consisting of current income exempt from federal income tax and capital appreciation.