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Note 12 - Income Taxes (Tables)
3 Months Ended
Mar. 31, 2013
Summary of Income Tax Contingencies [Table Text Block]
Balance at January 1, 2013
 
$
327
 
Increase to prior year tax positions
   
6
 
Increase to current year tax positions
   
—
 
Expiration of the statute of limitations for the assessment of taxes
   
—
 
Decrease related to settlements
   
—
 
Balance at March 31, 2013
  $
333