OTHER SUPPLEMENTAL INFORMATION - Other current assets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
OTHER SUPPLEMENTAL INFORMATION
Unamortized commercial insurance premiums	$ 2,611	$ 2,389
Security deposits - real estate	1,978	1,978
Prepaid expenses	1,511	1,136
Sales tax receivable	6	4,866
Other current assets	152	680
Total	$ 6,258	$ 11,049