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Stock-Based Compensation Plans (Details Textual) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Stock Based Compensation Plans (Additional Textual) [Abstract]    
Compensation expenses related to stock options $ 36 $ 46
Unrecognized compensation expense related to stock options 188  
Weighted-average period of unrecognized compensation expense related to stock option 2 years 3 months 18 days  
Stock-based compensation plans (Textual) [Abstract]    
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 3,000,000  
Stock Options Under Option Plan Maximum Expiry Period 10 years  
Cost of Sales
   
Stock-based compensation plans (Textual) [Abstract]    
Stock based compensation including cost of good sold 4 7
Selling, General and Administrative Expenses
   
Stock-based compensation plans (Textual) [Abstract]    
Stock based compensation including cost of good sold $ 32 $ 39