Earnings Per Share - Schedule of computation of basic and diluted earnings per share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Earnings Per Share
Net Income	$ 11,664	$ 11,985	$ 21,267	$ 24,731
Less: distributed earnings allocated to participating securities	(9)	(8)	(17)	(14)
Less: undistributed earnings allocated to participating securities	(43)	(46)	(78)	(85)
Net income available to common shareholders	$ 11,612	$ 11,931	$ 21,172	$ 24,632
Weighted-average common shares outstanding, including participating securities	9,229,151	8,887,303	9,229,060	8,893,149
Less: weighted-average participating securities outstanding (restricted shares)	(41,270)	(39,920)	(41,270)	(35,883)
Weighted-average shares outstanding	9,187,881	8,847,383	9,187,790	8,857,266
Effect of dilutive securities stock options or awards	22,369	21,780	22,512	15,977
Denominator for diluted earnings per share	9,210,250	8,869,163	9,210,302	8,873,243
Basic earnings per share available to common stockholders	$ 1.26	$ 1.35	$ 2.30	$ 2.78
Diluted earnings per share available to common stockholders	$ 1.26	$ 1.35	$ 2.30	$ 2.78