3.25.0.1 html 211 74 1 true 69 0 false 2 false false R1.htm 000000 - Document - Document and Entity Information {Elements} Sheet http://www.commercefunds.com/role/DocumentDocumentandEntityInformationElements000000 Document and Entity Information Risk/Return 1 false false R2.htm 000021 - Disclosure - Risk/Return Detail Data {Elements} - The Growth Fund Sheet http://www.commercefunds.com/role/DisclosureRiskReturnDetailDataElementsTheGrowthFund000021 Risk/Return Detail Data- The Growth Fund Risk/Return 2 false false R3.htm 000041 - Disclosure - Risk/Return Detail Data {Elements} - The Value Fund Sheet http://www.commercefunds.com/role/DisclosureRiskReturnDetailDataElementsTheValueFund000041 Risk/Return Detail Data- The Value Fund Risk/Return 3 false false R4.htm 000061 - Disclosure - Risk/Return Detail Data {Elements} - The MidCap Growth Fund Sheet http://www.commercefunds.com/role/DisclosureRiskReturnDetailDataElementsTheMidCapGrowthFund000061 Risk/Return Detail Data- The MidCap Growth Fund Risk/Return 4 false false R5.htm 000081 - Disclosure - Risk/Return Detail Data {Elements} - The MidCap Value Fund Sheet http://www.commercefunds.com/role/DisclosureRiskReturnDetailDataElementsTheMidCapValueFund000081 Risk/Return Detail Data- The MidCap Value Fund Risk/Return 5 false false R6.htm 000101 - Disclosure - Risk/Return Detail Data {Elements} - The Bond Fund Sheet http://www.commercefunds.com/role/DisclosureRiskReturnDetailDataElementsTheBondFund000101 Risk/Return Detail Data- The Bond Fund Risk/Return 6 false false R7.htm 000121 - Disclosure - Risk/Return Detail Data {Elements} - The Short Term Government Fund Sheet http://www.commercefunds.com/role/DisclosureRiskReturnDetailDataElementsTheShortTermGovernmentFund000121 Risk/Return Detail Data- The Short Term Government Fund Risk/Return 7 false false R8.htm 000141 - Disclosure - Risk/Return Detail Data {Elements} - The National Tax-Free Intermediate Bond Fund Sheet http://www.commercefunds.com/role/DisclosureRiskReturnDetailDataElementsTheNationalTax-FreeIntermediateBondFund000141 Risk/Return Detail Data- The National Tax-Free Intermediate Bond Fund Risk/Return 8 false false R9.htm 000161 - Disclosure - Risk/Return Detail Data {Elements} - The Missouri Tax-Free Intermediate Bond Fund Sheet http://www.commercefunds.com/role/DisclosureRiskReturnDetailDataElementsTheMissouriTax-FreeIntermediateBondFund000161 Risk/Return Detail Data- The Missouri Tax-Free Intermediate Bond Fund Risk/Return 9 false false R10.htm 000181 - Disclosure - Risk/Return Detail Data {Elements} - The Kansas Tax-Free Intermediate Bond Fund Sheet http://www.commercefunds.com/role/DisclosureRiskReturnDetailDataElementsTheKansasTax-FreeIntermediateBondFund000181 Risk/Return Detail Data- The Kansas Tax-Free Intermediate Bond Fund Risk/Return 10 false false All Reports Book All Reports cf-20250224.xsd cf-20250224_cal.xml cf-20250224_def.xml cf-20250224_lab.xml cf-20250224_pre.xml d925641d485bpos.htm g925641dsp001.jpg g925641dsp002.jpg g925641g14a13.jpg g925641g14n27.jpg g925641g20f34.jpg g925641g22j85.jpg g925641g39n36.jpg g925641g44x08.jpg g925641g45i35.jpg g925641g51e10.jpg g925641g52r27.jpg g925641g54g54.jpg g925641g54q43.jpg g925641g55c75.jpg g925641g61q58.jpg g925641g69c37.jpg g925641g69i30.jpg g925641g69r92.jpg g925641g85l91.jpg g925641g85p11.jpg g925641g89l38.jpg g925641g93m66.jpg g925641g96m73.jpg http://xbrl.sec.gov/dei/2023 http://xbrl.sec.gov/rr/2023 true true