COMMITMENTS AND CONTINGENCIES (Lease Cost) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Lease Cost
Amortization of right-of-use assets	$ 6	$ 4	$ 16	$ 15
Interest on lease obligation	0	0	1	1
Total finance lease cost	6	4	17	16
Total operating lease cost	103	110	304	495
Short-term lease cost	118	479	372	1,049
Total lease cost	227	593	693	1,560
Cash paid for amounts included in the measurement of lease obligation:
Operating cash flows from operating leases	102	107	301	492
Financing cash flows from finance leases	6	5	16	15
Right-of-use assets obtained in exchange for new finance lease obligations	0	0	0	0
Right-of-use assets obtained in exchange for new operating lease obligations	$ 20	117	$ 46	117
Weighted average remaining lease term for operating leases	5 years		5 years		5 years 7 months 6 days
Weighted average remaining lease term for finance leases	2 years 2 months 12 days		2 years 2 months 12 days		2 years 8 months 12 days
Weighted average discount rate for operating leases	3.30%		3.30%		3.40%
Weighted average discount rate for finance leases	4.00%		4.00%		4.00%
Boniface Engineering, Ltd.
Lease Cost
Total lease cost	$ 55	53	$ 157	170
Jige International S.A.
Lease Cost
Total lease cost	$ 28	$ 26	$ 84	$ 95