Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2023	Jun. 30, 2022
ASSETS
Securities held-to-maturity, fair value	$ 685,893	$ 710,453
SHAREHOLDERS' EQUITY
Preferred stock, shares authorized (in shares)	1,000,000	1,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.1	$ 0.1
Common stock, shares authorized (in shares)	36,000,000	36,000,000
Common stock, shares issued (in shares)	17,222,680	17,222,680
Common stock, shares outstanding (in shares)	17,026,828	17,026,828
Treasury stock, shares (in shares)	195,852	195,852