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, 2019	Sep. 30, 2018
Numerator:
Net income	$ 1,761	$ 911
Denominator:
Basic weighted-average common shares outstanding (in shares)	14,009	13,987
Effect of dilutive securities:
Stock awards and options (in shares)	1,097	1,152
Diluted weighted-average common shares outstanding (in shares)	15,106	15,139
Net income per share, basic (USD per share)	$ 0.13	$ 0.07
Net income per share, diluted (USD per share)	$ 0.12	$ 0.06