Annual Operating Expenses - FidelityMassachusettsMunicipalIncomeandMunicipalMoneyMarketFund-RetailComboPRO - FidelityMassachusettsMunicipalIncomeandMunicipalMoneyMarketFund-RetailComboPRO - Fidelity Massachusetts Municipal Income Fund - Fidelity Massachusetts Municipal Income Fund	Apr. 01, 2023
Operating Expenses:
Management fee	0.35%
Distribution and/or Service (12b-1) fees	none
Other expenses	0.11%
Total annual operating expenses	0.46%