Fair Value Measurements Fair Value, Assets Measured on Recurring Basis, Valuation Techniques (Details) $ in Thousands		Mar. 31, 2023 USD ($)	Mar. 31, 2022 USD ($)
Fair Value, Inputs, Level 3
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights		$ 152	$ 162
Fair Value, Measurements, Recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights		152	162
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3 | Valuation Technique, Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage servicing rights		$ 152	$ 162
Fair Value, Measurements, Recurring | Other Assets | Fair Value, Inputs, Level 3 | Measurement Input, Constant Prepayment Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Servicing Asset, Measurement Input	[1]	0.0401	0.0670

[1] (1) Represents annualized loan repayment rate assumptions