Summary of Significant Accounting Policies - Summary of Computation of Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Numerator:
Net income	$ 2,451	$ 1,761
Denominator:
Basic weighted-average common shares outstanding (in shares)	14,269	14,009
Effect of dilutive securities:
Stock awards and options (in shares)	426	1,097
Diluted weighted-average common shares outstanding (in shares)	14,695	15,106
Net income per share, basic (USD per share)	$ 0.17	$ 0.13
Net income per share, diluted (USD per share)	$ 0.17	$ 0.12