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Note 1 - Summary of Operating Results for Company's Discontinued Operations (Details) - USD ($)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Net sales $ 22,225,000 $ 116,111,000
Cost of sales 23,881,000 123,888,000
Gross loss (1,656,000) (7,777,000)
Selling, general, and administrative $ 396,000 1,509,000
Tangible Asset Impairment Charges 27,500,000
Operating loss $ (2,052,000) $ (36,786,000)
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax $ (13,497,000)
Interest income $ 47,000
Interest expense $ (99,000) (344,000)
Loss before income taxes (15,648,000) (37,083,000)
Income tax benefit (3,934,000) (14,484,000)
Loss on discontinued operations $ (11,714,000) $ (22,599,000)