NOTE 13 - INCOME TAXES (Details 3) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred income tax assets:
Allowance for doubtful accounts	$ 11	$ 17
Inventory and product return reserves	406	632
Compensation accruals	1,233	1,726
Accrued liabilities	236	524
Book-over-tax depreciation and amortization	33	93
Foreign net operating loss carryforwards	133	550
U.S. net operating loss carryforwards	2,761	6,419
U.S. credit carryforwards	2,017	1,287
Deferred Tax Assets Gross	6,830	11,248
Valuation Allowance	(6,830)	(11,248)
Total Deferred Income Tax Assets	$ 0	$ 0