LEASES - Summary of Right of Use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Assets
Operating lease, right-of-use asset	$ 912	$ 1,607
Liabilities
Operating lease liabilities - current	1,098	1,382
Operating lease liabilities - long-term	550	1,677
Total lease liabilities	$ 1,648	$ 3,059
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other Assets	Other Assets
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other current liabilities	Other current liabilities
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Other long-term liabilities	Other long-term liabilities