4. PROPERTY, PLANT AND EQUIPMENT (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment [Abstract]
Assets under capital lease	$ 0	$ 253
Accumulated amortization capital leased assets	0	72
Depreciation expense excluded from cost of sales	134	187
Depreciation expense included in cost of sales	$ 1,335	$ 1,449