Net (Loss) Income Per Common Share (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
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Undistributed Earnings (Loss) Available to Common Shareholders, Basic	$ (4,033)	$ 1,592	$ (23,899)	$ 23,253
Undistributed net (loss) income available to nonvested restricted stockholders and holders of convertible preferred stock	(3)	2	(13)	35
Undistributed net (loss) income available to common stockholders	$ (4,036)	$ 1,594	$ (23,912)	$ 23,288
Weighted average common shares outstanding - basic (in shares)	16,760,145	16,605,754	16,727,624	16,584,125
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock	0	0	0	0
Weighted average common shares outstanding—diluted (in shares)	16,760,145	16,721,774	16,727,624	16,704,200
Earnings Per Share, Basic, Undistributed	$ (0.24)	$ 0.10	$ (1.43)	$ 1.40
Earnings Per Share, Diluted, Undistributed	$ (0.24)	$ 0.10	$ (1.43)	$ 1.39
Cumulative Preferred Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	383,611
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares issuable under stock options (in shares)	0	116,020	0	120,075
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	488,231	30,401		25,508
Performance-Based Restricted Stock Units (PBRSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares issuable under stock options (in shares)	0	0	0	0
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	36,108