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Note 9 - Other Assets (Tables)
12 Months Ended
Dec. 31, 2013
Disclosure Text Block Supplement [Abstract]  
Schedule of Other Assets [Table Text Block]
   

December 31,

 
    2013     2012  

Intangible assets:

               

Gross carrying value:

               

Industrial Group

  $ 0     $ 800  

Electronics Group

    0       0  

Total gross carrying value

    0       800  

Accumulated amortization:

               

Industrial Group

    0       (770 )

Electronics Group

    0       0  

Total accumulated amortization

    0       (770 )
                 

Intangible assets, net

    0       30  

Deferred tax assets, net

    2,401       3,277  

Other

    2,167       1,613  
    $ 4,568     $ 4,920