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Stock-Based Compensation Plans (Details Textual) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Stock-based compensation plans (Textual) [Abstract]        
Maximum expiry period of stock options under the option plan     10 years  
Compensation expenses related to stock options $ 44 $ 68 $ 90 $ 146
Granted options to purchase of common stock        173,500
Minimum Exercise price of options to purchase       $ 0.62
Maximum Exercise price of options to purchase       $ 1.06
Estimated average forfeiture rate     33.00% 35.00%
Unrecognized compensation expense related to stock options 221   221  
Weighted-average period of unrecognized compensation expense related to stock option     1 year 10 months 24 days  
Cost of Sales [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Allocated Share-based Compensation Expense 6 6 13 15
Selling, General and Administrative Expenses [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Allocated Share-based Compensation Expense $ 38 $ 62 $ 77 $ 131
Option Plan [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares common stock for issuance under its 2005 Stock Option Plan 3,000,000   3,000,000