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Note 14 Computation of Earnings Per Share (Tables)
3 Months Ended
Jun. 30, 2013
Earnings Per Share [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   Three Months Ended
    June 30,
   2013 2012
        
   (unaudited)
 Net income $ 1,979 $ 6,007
 Weighted average shares - basic   30,948   31,351
 Weighted average shares - diluted   31,635   32,378
 Net income per share - basic $ 0.06 $ 0.19
 Net income per share - diluted $ 0.06 $ 0.19