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Note 9 - Derivative Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule Of Outstanding Stock Warrants At Fair Value [Table Text Block]

(thousands)

       

Balance at December 31, 2011

  $ 1,191  

Reclassification of fair value of exercised warrants to shareholders’ equity

    (2,922 )

Change in fair value, included in earnings

    1,731  

Balance at December 31, 2012

  $ -