Earnings Per Share - Schedule of computation of basic and diluted earnings per share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share
Net Income	$ 12,746	$ 9,986
Less: distributed earnings allocated to participating securities	(6)	(4)
Less: undistributed earnings allocated to participating securities	39	26
Net income available to common shareholders	$ 12,701	$ 9,956
Weighted-average common shares outstanding, including participating securities	8,898,994	9,126,866
Less: weighted-average participating securities outstanding (restricted shares)	(31,845)	(27,260)
Weighted-average shares outstanding	8,867,149	9,099,606
Effect of dilutive securities stock options or awards	10,173	2,191
Denominator for diluted earnings per share	8,877,322	9,101,797
Basic earnings per share available to common stockholders	$ 1.43	$ 1.09
Basic earnings per share available to common stockholders	$ 1.43	$ 1.09