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		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Numerator:
Net income	$ 317	$ 283	$ 1,134	$ 1,463
Weighted-average shares outstanding:
Basic weighted-average common shares outstanding (in shares)	13,956	13,840	13,959	13,830
Effect of dilutive securities:
Stock awards and options (in shares)	197	250	158	302
Warrants (in shares)	0	42	0	44
Diluted weighted-average common shares outstanding (in shares)	14,153	14,132	14,117	14,176
Net income per share, basic (USD per share)	$ 0.02	$ 0.02	$ 0.08	$ 0.11
Net income per share, diluted (USD per share)	$ 0.02	$ 0.02	$ 0.08	$ 0.10