LEASES - Lease cost (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Lease Cost
Amortization of right-of-use assets		$ 6,000		$ 15,000
Interest on lease obligation		2,000		3,000
Total finance lease cost		8,000		18,000
Total long-term operating lease cost	$ 91,000	92,000	$ 186,000	180,000
Total short-term operating lease cost	190,000	83,000	383,000	169,000
Total lease cost	281,000	183,000	569,000	367,000
Cash paid for amounts included in the measurement of lease obligation:
Operating cash flows from operating leases	91,000	92,000	186,000	180,000
Boniface Engineering, Ltd.
Lease Cost
Total lease cost	52,000.0	51,000.0	104,300	101,000.0
Jige International S.A
Lease Cost
Total lease cost	$ 63,500	$ 54,000.0	$ 117,500	$ 111,000.0