Other Long-Term Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Jun. 30, 2019
Other Liabilities Disclosure [Abstract]
Other long-term liabilities-capital leases	$ 22	$ 32
Derivative liabilities—noncurrent	2,747	1,612
Multiemployer Plan Holdback Liability, Long-Term	46	0
Cumulative preferred dividends, undeclared and unpaid—noncurrent	0	618
Deferred income taxes	1,738	1,795
Other long-term liabilities	$ 4,553	$ 4,057