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, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share [Abstract]
Net Income	$ 3,595	$ 1,193	$ 9,191	$ 8,804	$ 8,013	$ 3,302	$ 8,041	$ 7,790	$ 22,783	$ 27,146	$ 8,235
Allocation of earnings to participating securities									(194)	(189)	(60)
Numerator for basic EPS - Net income available to common stockholders									22,589	26,957	8,175
Effect of dilutive securities:
Dilutive effect to participating securities									6	7	2
Numerator for diluted EPS									$ 22,595	$ 26,964	$ 8,177
Denominator:
Weighted-average common shares outstanding - basic (in shares)									16,729,056	17,692,493	18,028,854
Effect of dilutive shares (in shares)									563,183	700,691	697,577
Weighted-average common shares outstanding - diluted (in shares)									17,292,239	18,393,184	18,726,431
Net income per share - basic (in dollars per share)									$ 1.34	$ 1.52	$ 0.45
Net income per share - diluted (in dollars per share)									$ 1.30	$ 1.46	$ 0.44