Net (Loss) Income Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Undistributed Earnings (Loss) Available to Common Shareholders, Basic	$ (18,887)	$ 20,052	$ (19,865)	$ 21,669
Undistributed net (loss) income available to nonvested restricted stockholders	(10)	24	(10)	25
Undistributed net (loss) income available to common stockholders	$ (18,897)	$ 20,076	$ (19,875)	$ 21,694
Weighted average common shares outstanding - basic (in shares)	16,723,498	16,584,106	16,711,660	16,573,545
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock	0	0	0	0
Weighted average common shares outstanding—diluted (in shares)	16,723,498	16,707,003	16,711,660	16,695,687
Earnings Per Share, Basic, Undistributed	$ (1.13)	$ 1.21	$ (1.19)	$ 1.31
Earnings Per Share, Diluted, Undistributed	$ (1.13)	$ 1.20	$ (1.19)	$ 1.30
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	122,897	0	122,142
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	525,059	29,032		24,804
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	37,414