Fair Value Of Financial Instruments - Summary of Financial Assets Measured at Fair Value on a Recurring Basis are Available-for-Sale Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities Available-for-sale	$ 57,316	$ 57,842
Municipal Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities Available-for-sale	7,292	7,706
Fair Value, Recurring | Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities Available-for-sale	57,316	57,842
Fair Value, Recurring | Estimated Fair Value | Mortgage Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities Available-for-sale	50,024	50,136
Fair Value, Recurring | Estimated Fair Value | Municipal Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities Available-for-sale	7,292	7,706
Fair Value, Recurring | Estimated Fair Value | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities Available-for-sale	57,316	57,842
Fair Value, Recurring | Estimated Fair Value | Level 2 | Mortgage Backed Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities Available-for-sale	50,024	50,136
Fair Value, Recurring | Estimated Fair Value | Level 2 | Municipal Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities Available-for-sale	7,292	7,706
Fair Value, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities Available-for-sale	$ 57,316	$ 57,842