Summary of Significant Accounting Policies, Allowance for Credit Losses on Securities Held-to-Maturity (Details) - USD ($) $ in Thousands		Mar. 31, 2024		Dec. 31, 2023	Jun. 30, 2023
Allowance for Credit Losses on Securities Held to Maturity [Abstract]
Allowance for credit losses on securities held-to-maturity		$ 498	[1]	$ 485	$ 0	[1]
U.S. Treasury Securities [Member]
Allowance for Credit Losses on Securities Held to Maturity [Abstract]
Allowance for credit losses on securities held-to-maturity	[1]	$ 0			$ 0

[1] The Company adopted ASU 2016-13 (CECL) on July 1, 2023. For periods subsequent to adoption, an allowance is calculated under the CECL methodology. The periods prior to adoption did not have an allowance for credit losses under applicable GAAP for those periods.