Net Income per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Numerator:
Net income	$ 8,023	$ 7,869	$ 29,628	$ 23,083
Allocation of earnings to participating securities	(69)	(72)	(254)	(209)
Numerator for basic EPS - Net income available to common stockholders	7,954	7,797	29,374	22,874
Dilutive effect of participating securities	0	2	0	2
Numerator for diluted EPS	$ 7,954	$ 7,799	$ 29,374	$ 22,876
Denominator:
Weighted-average common shares outstanding - basic (in shares)	15,523,813	15,979,590	15,666,093	16,139,059
Dilutive effect of assumed exercises of stock options (in shares)	269,199	506,128	331,284	200,071
Weighted-average common shares outstanding - diluted (in shares)	15,793,012	16,485,718	15,997,377	16,339,130
Net income per share - basic (in dollars per share)	$ 0.51	$ 0.49	$ 1.87	$ 1.42
Net income per share - diluted (in dollars per share)	$ 0.51	$ 0.48	$ 1.84	$ 1.40