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Summary of Significant Accounting Policies - Computation of Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Numerator:
Net income	$ (1,416)	$ 1,141	$ 79	$ 3,316	$ 4,907	$ 1,724	$ 3,812	$ 2,451	$ 3,120	$ 12,894	$ 11,549
Denominator:
Basic weighted-average common shares outstanding (in shares)									12,886	14,070	14,105
Effect of dilutive securities:
Stock awards and options (in shares)									183	198	494
Diluted weighted-average common shares outstanding (in shares)									13,069	14,268	14,599
Income per share, basic (dollars per share)	$ (0.11)	$ 0.09	$ 0.01	$ 0.25	$ 0.36	$ 0.12	$ 0.27	$ 0.17	$ 0.24	$ 0.92	$ 0.82
Income per share, diluted (dollars per share)	$ (0.11)	$ 0.09	$ 0.01	$ 0.25	$ 0.35	$ 0.12	$ 0.26	$ 0.17	$ 0.24	$ 0.90	$ 0.79

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