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Stock Options (Details 3) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Allocated Share-based Compensation Expense $ 198 $ 278
Cost of Sales [Member]
   
Allocated Share-based Compensation Expense 69 51
Selling and Marketing Expense [Member]
   
Allocated Share-based Compensation Expense $ 129 $ 227