DETAILS OF CERTAIN FINANCIAL STATEMENT COMPONENTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Inventories
Raw materials	$ 738	$ 681
Work-in-process	357	172
Finished goods	173	162
Total inventories	1,268	1,015
Property, plant and equipment, net
Property and equipment, Gross	1,428	1,237
Less: accumulated depreciation	(1,118)	(1,061)
Total property, plant and equipment, net	310	176
Depreciation expense	57	46
Retired or disposed of property, plant and equipment, cost	0	1,500
Intangibles, net
Total intangibles, net	44	13
Amortization expense	9	10
Future amortization
2017	11
2018	11
2019	8
2020	8
2021	6
Accrued expenses and other accrued liabilities
Accrued warranty	2	14
Accrued wages and benefits	195	194
Accrued taxes, other than income taxes	5	7
Accrued vacation	77	68
Accrued other	55	21
Total accrued liabilities	334	304
Patents and trademarks
Intangibles, net
Intangibles, gross	360	321
Less: accumulated amortization	(316)	(308)
Total intangibles, net	44	13
Furniture, machinery and equipment
Property, plant and equipment, net
Property and equipment, Gross	914	910
Leasehold improvements
Property, plant and equipment, net
Property and equipment, Gross	$ 514	$ 327