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Note 2 - Discontinued Operations (Tables)
 12 Months Ended
Dec. 31, 2015
Balance Sheet Disclosure [Member]  
Notes Tables  
Disposal Groups, Including Discontinued Operations [Table Text Block]
As of December 31,
(in thousands)
 
2015
 
 
2014
 
Major classes of assets included as part of discontinued operations:
                
Accounts receivable
   $ --     $ 1,276  
Inventories
     --       1,042  
Property, plant & equipment
     --       488  
Other assets
     --       206  
Total assets of discontinued operations
   $ --     $ 3,012  
                 
Major classes of liabilities included as part of discontinued operations:
                
Accounts payable
   $ --     $ 190  
Accrued payroll
     --       152  
Other current liabilities
     120       284  
Other liabilities
     --       212  
Total liabilities of discontinued operations
   $ 120     $ 838  
Income Statement Disclosures [Member]  
Notes Tables  
Disposal Groups, Including Discontinued Operations [Table Text Block]
Year ended December 31
,
(in thousands)
 
2015
 
 
2014
 
Net sales
   $ 2,902     $ 10,398  
Operating income
    197       2,021  
Net income before income taxes
     6       1,146  
Income taxes
     9       35  
Net income (loss) from discontinued operations
   $ (3 )   $ 1,111