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K. INCOME TAXES - DEFERRED INCOME TAXES (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Income Tax Disclosure [Abstract]    
NOL Carryforward $ 12,866 $ 14,318
Inventory reserves 869 1,616
AMT credit 424 347
Unrealized gains and losses   1,549
Unrealized gains (6)  
Stock compensation 1,453 1,084
Fixed assets and intangibles (2,777) (4,432)
Other 255 244
Deferred tax assets, gross 13,084 14,726
Less valuation allowance (1,663) $ (14,726)
Deferred tax assets, net $ 11,421