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Note 2 - Major Components of Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Accrued Payroll [Member]    
Major classes of liabilities included as part of discontinued operations:    
Accrued payroll   $ 152
Accounts receivable   1,276
Inventories   1,042
Property, plant & equipment   488
Other assets   206
Total assets of discontinued operations   3,012
Accounts payable   190
Other current liabilities $ 120 284
Other liabilities   212
Total liabilities of discontinued operations $ 120 $ 838