Net Income per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Earnings Per Share [Abstract]
Net Income	$ 4,766	$ 274	$ 2,983	$ 3,824	$ 3,141	$ 2,449	$ 2,564	$ 3,302	$ 11,847	$ 11,456	$ 8,025
Numerator:
Undistributed Earnings (Loss) Allocated to Participating Securities, Basic									(125)	(161)	(129)
Undistributed Earnings (Loss) Allocated to Participating Securities, Diluted									4	1	0
Net Income (Loss) Available to Common Stockholders, Diluted									$ 11,726	$ 11,296	$ 7,896
Denominator:
Weighted-average common shares outstanding - basic									17,379,487	17,417,046	19,038,098
Effect of dilutive shares									576,956	189,643	79,804
Weighted-average common shares outstanding - diluted									17,956,443	17,606,689	19,117,902
Net income per share - basic (in dollars per share)									$ 0.66	$ 0.65	$ 0.42
Net income per share - diluted (in dollars per share)									$ 0.65	$ 0.65	$ 0.42