COMMITMENTS AND CONTINGENCIES (Lease Cost) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Lease Cost
Amortization of right-of-use assets	$ 5	$ 6	$ 10	$ 11
Interest on lease obligation	0	0	1	1
Total finance lease cost	5	6	11	12
Total operating lease cost	99	185	201	385
Short-term lease cost	141	318	254	570
Total lease cost	245	509	466	967
Cash paid for amounts included in the measurement of lease obligation:
Operating cash flows from operating leases	98	185	199	385
Financing cash flows from finance leases	5	5	10	10
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	$ 26	0	$ 26	0
Weighted average remaining lease term for operating leases	5 years 1 month 6 days		5 years 1 month 6 days		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	3.40%		3.40%		3.40%
Weighted average discount rate for finance leases	4.00%		4.00%		4.00%
Boniface Engineering, Ltd.
Lease Cost
Total lease cost	$ 45	55	$ 102	117
Jige International S.A.
Lease Cost
Total lease cost	$ 26	$ 26	$ 56	$ 69