COMMITMENTS AND CONTINGENCIES (Lease Cost) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Lease Cost
Amortization of right-of-use assets	$ 4		$ 15
Interest on lease obligation			1
Total finance lease cost	4		16
Total operating lease cost	110		495
Short-term lease cost	479		1,049
Total lease cost	593		1,560
Cash paid for amounts included in the measurement of lease obligation:
Operating cash flows from operating leases	107		492
Financing cash flows from finance leases	5		15
Right-of-use assets obtained in exchange for new operating lease obligations	$ 117		$ 117
Weighted average remaining lease term for operating leases	5 years 7 months 6 days		5 years 7 months 6 days
Weighted average remaining lease term for finance leases	2 years 10 months 24 days		2 years 10 months 24 days
Weighted average discount rate for operating leases	3.50%		3.50%
Weighted average discount rate for finance leases	4.00%		4.00%
Boniface Engineering, Ltd.
Lease Cost
Total lease cost	$ 53	$ 55	$ 170	$ 164
Jige International S.A.
Lease Cost
Total lease cost	$ 26	$ 32	$ 95	$ 105