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		9 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Numerator:
Net income	$ 61	$ 1,003	$ 1,524	$ 3,669
Weighted-average shares outstanding:
Basic weighted-average common shares outstanding (in shares)	13,915	13,734	13,858	13,721
Effect of dilutive securities:
Stock awards and options (in shares)	190	321	264	281
Warrants (in shares)	0	73	0	70
Diluted weighted-average common shares outstanding (in shares)	14,105	14,128	14,122	14,072
Net income per share, basic (USD per share)	$ 0.00	$ 0.07	$ 0.11	$ 0.27
Net income per share, diluted (USD per share)	$ 0.00	$ 0.07	$ 0.11	$ 0.26