Condensed Consolidated Statement of Changes in Stockholders' Equity (Deficit) - USD ($) shares in Thousands, $ in Thousands	Total	Adjustment to Opening Retained Earnings Related to Adoption ASC Topic 842	Preferred Stock Class C	Preferred Stock Class D	Common Stock	Treasury Stock Amount	Additional Paid-In Capital	Accumulated Deficit	Accumulated Deficit Adjustment to Opening Retained Earnings Related to Adoption ASC Topic 842
Balance, beginning of period at Jun. 30, 2019	$ 2,708	$ 230			$ 190,571	$ (4,129)	$ 7,964	$ (191,698)	$ 230
Balance (in shares) at Jun. 30, 2019			281	281	5,775
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member	us-gaap:AccountingStandardsUpdate201602Member						us-gaap:AccountingStandardsUpdate201602Member
Issuance of shares	$ 321						321
Issuance of shares (in shares)					146
Stock-based compensation	78						78
Restricted stock issuance	26				$ 26
Restricted stock issuance (in shares)					5
Net loss	(2,068)							$ (2,068)
Balance, end of period at Sep. 30, 2019	1,295				$ 190,597	(4,129)	8,363	(193,536)
Balance (in shares) at Sep. 30, 2019			281	281	5,926
Balance, beginning of period at Jun. 30, 2020	625				$ 190,599	(4,129)	13,934	(199,779)
Balance (in shares) at Jun. 30, 2020				281	7,850
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock offering costs	(2)						(2)
Stock-based compensation	49						49
Restricted stock cancellation	(5)						(5)
Restricted stock cancellation (in shares)					(6)
Net loss	(2,111)							(2,111)
Balance, end of period at Sep. 30, 2020	$ (1,444)				$ 190,599	$ (4,129)	$ 13,976	$ (201,890)
Balance (in shares) at Sep. 30, 2020				281	7,844