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, 2017	Sep. 30, 2016
Numerator:
Net income	$ 817	$ 1,180
Denominator:
Basic weighted-average common shares outstanding (in shares)	13,963	13,820
Effect of dilutive securities:
Stock awards and options (in shares)	117	601
Warrants (in shares)	0	45
Diluted weighted-average common shares outstanding (in shares)	14,080	14,466
Net income per share, basic (USD per share)	$ 0.06	$ 0.09
Net income per share, diluted (USD per share)	$ 0.06	$ 0.08