Fair Value, Assets Measured on Nonrecurring Basis, Valuation Techniques (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Dec. 31, 2019	Mar. 31, 2019
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Other Real Estate Owned	$ 120	$ 404
Fair Value, Measurements, Nonrecurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,314	2,027
Other Real Estate Owned	120	404
Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	1,314	2,027
Other Real Estate Owned	$ 120	$ 404
Fair Value Measurements, Valuation Processes, Description	Appraisal of collateral	Appraisal of collateral
Measurement Input, Appraised Value [Member] | Fair Value, Measurements, Nonrecurring | Fair Value, Inputs, Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair Value Measurements, Valuation Processes, Description	Appraisal adjustments	Appraisal adjustments