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6. Earnings per share (Tables)
9 Months Ended
Sep. 30, 2012
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   
Three Months Ended
   
Nine Months Ended
   
September 30,
   
September 30,
   
2012
   
2011
   
2012
   
2011
   
(In thousands, except per share data)
                       
Net income
  $ 23     $ 839     $ 1,739     $ 4,106
                               
Shares:
                             
Basic:  Weighted average common shares outstanding
    8,822       9,471       9,110       9,435
Add:  Dilutive effect of outstanding options and restricted stock as
determined by the treasury stock method
    89       190       95       216
Diluted:  Weighted average common and common equivalent shares
outstanding
    8,911       9,661       9,205       9,651
                               
Net income per common share:
                             
Basic
  $ 0.00     $ 0.09     $ 0.19     $ 0.44
Diluted
  $ 0.00     $ 0.09     $ 0.19     $ 0.43