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, 2018	Sep. 30, 2017
Numerator:
Net income	$ 911	$ 817
Denominator:
Basic weighted-average common shares outstanding (in shares)	13,987	13,963
Effect of dilutive securities:
Stock awards and options (in shares)	1,152	117
Diluted weighted-average common shares outstanding (in shares)	15,139	14,080
Net income per share, basic (USD per share)	$ 0.07	$ 0.06
Net income per share, diluted (USD per share)	$ 0.06	$ 0.06