Net (Loss) Income Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended					12 Months Ended
	Jun. 30, 2020	Mar. 31, 2019	Jun. 30, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Undistributed net (loss) income available to common stockholders						$ (37,462)	$ (74,054)	$ (18,652)
Undistributed net (loss) income available to nonvested restricted stockholders and holders of convertible preferred stock						(179)	(76)	(17)
Undistributed net (loss) income available to common stockholders			$ (18,669)			$ (37,641)	$ (74,130)	$ (18,669)
Weighted average common shares outstanding - basic (in shares)						17,205,849	16,996,354	16,815,020
Shares issuable under stock options (in shares)						0	0	0
Weighted average common shares outstanding—diluted (in shares)			16,815,020			17,205,849	16,996,354	16,815,020
Net income (loss) per common share - basic (in US$ per share)	$ (0.57)	$ (2.32)	$ (1.11)	$ 0.44	$ 0.26	$ (2.19)	$ (4.36)	$ (1.11)
Net income (loss) per common share - diluted (in US$ per share)	$ (0.57)	$ (2.32)	$ (1.11)	$ 0.43	$ 0.26	$ (2.19)	$ (4.36)	$ (1.11)
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount						330,627	157,850	462,032
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						422,193	407,734	393,769
Restricted Stock Units (RSUs) [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount						73,012	65,971	35,732