Fair Value Measurements-Assets Measured on a Non-recurring basis, Valuation Techniques (Details) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	$ 1,293	$ 2,027
Other Real Estate Owned	120	404
Fair Value, Inputs, Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	$ 1,293	$ 2,027
Fair Value Measurements, Valuation Processes, Description	Appraisal of collateral	Appraisal of collateral
Other Real Estate Owned	$ 120	$ 404
Fair Value, Inputs, Level 3 | Measurement Input, Appraised Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Processes, Description	Appraisal adjustments	Appraisal adjustments