Net Income (loss) Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Undistributed Earnings (Loss) Available to Common Shareholders, Basic	$ 7,595	$ (10,225)	$ 12,104	$ (13,341)
Undistributed net earnings (loss) available to nonvested restricted stockholders and holders of convertible preferred stock	21	(9)	29	(11)
Undistributed net earnings (loss) available to common stockholders	$ 7,616	$ (10,234)	$ 12,133	$ (13,352)
Weighted average common shares outstanding - basic (in shares)	17,159,108	16,985,157	17,127,153	16,971,995
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock (in shares)	414,900	0	414,900	0
Weighted average common shares outstanding—diluted (in shares)	17,583,335	16,985,157	17,550,144	16,971,995
Earnings Per Share, Basic, Undistributed (in USD per share)	$ 0.44	$ (0.60)	$ 0.71	$ (0.79)
Earnings Per Share, Diluted, Undistributed (in USD per share)	$ 0.43	$ (0.60)	$ 0.69	$ (0.79)
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares issuable under stock options (in shares)	1,236	0	1,819	0
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	190,117	201,543	121,113	165,013
Cumulative Preferred Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	0	400,691	0	400,691
Performance-Based Restricted Stock Units (PBRSUs)
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares issuable under stock options (in shares)	8,091	0	6,272	0
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)	16,195	64,991	8,097	52,890

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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