Net Income per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Numerator:
Net income	$ 6,127	$ 274	$ 1,028	$ 7,081
Allocation of earnings to participating securities	(45)	(3)	(7)	(78)
Numerator for basic EPS - Net income available to common stockholders	6,082	271	1,021	7,003
Dilutive effect to participating securities	2	0	0	2
Numerator for diluted EPS	$ 6,084	$ 271	$ 1,021	$ 7,005
Denominator:
Weighted-average common shares outstanding - basic	18,052,000	17,808,920	17,997,997	17,194,466
Effect of dilutive shares	709,586	587,234	690,489	534,317
Weighted-average common shares outstanding - diluted	18,761,586	18,396,154	18,688,486	17,728,783
Net income per share - basic (in dollars per share)	$ 0.34	$ 0.01	$ 0.06	$ 0.40
Net income per share - diluted (in dollars per share)	$ 0.32	$ 0.01	$ 0.06	$ 0.40