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Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	Jul. 01, 2023	Mar. 31, 2023
Maximum \| Forecast \| Accounting Standards Update 2016-13
Summary of Significant Accounting Policies
Allowance for credit loss	$ 500
WPSLA Investment Corporation
Summary of Significant Accounting Policies
Loans held in portfolio		$ 264,800
Investment securities portfolio		$ 274,600