Net (Loss) Income Per Common Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2019	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Undistributed net (loss) available to common stockholders		$ (40,710)	$ (37,462)	$ (74,054)
Undistributed net (loss) available to nonvested restricted stockholders and holders of convertible preferred stock		(1,515)	(179)	(76)
Undistributed net (loss) available to common stockholders	$ (74,130)	$ (42,225)	$ (37,641)	$ (74,130)
Weighted average common shares outstanding - basic (in shares)		17,635,402	17,205,849	16,996,354
Shares issuable under stock options (in shares)		0	0	0
Weighted average common shares outstanding—diluted (in shares)	16,996,354	17,635,402	17,205,849	16,996,354
Net income (loss) per common share - basic (in US$ per share)	$ (4.36)	$ (2.39)	$ (2.19)	$ (4.36)
Net income (loss) per common share - diluted (in US$ per share)	$ (4.36)	$ (2.39)	$ (2.19)	$ (4.36)
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		395,069	330,627	157,850
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		437,165	422,193	407,734
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		376,264	73,012	65,971