LEASES - Lease cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Lease Cost
Amortization of right-of-use assets		$ 14	$ 22
Interest on lease obligation		1	1
Total finance lease cost		15	23
Total long-term operating lease cost	$ 365	387	419
Total short-term operating lease cost	368	592	493
Total lease cost	733	994	935
Cash paid for amounts included in the measurement of lease obligation:
Operating cash flows from operating leases	365	387	419
Financing cash flows from finance leases		15	22
Right-of-use assets obtained in exchange for new operating lease obligations		117	143
Boniface Engineering, Ltd.
Lease Cost
Total lease cost	200
Jige International S.A
Lease Cost
Total lease cost	$ 200	$ 100	$ 100