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Shareholders' Equity (Summary of Allocation of Stock-Based Compensation Expenses) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation expense $ 668 $ 544 $ 437
Cost of Sales [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation expense 103 46 24
Research and Development Costs [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation expense 193 130 96
Selling and Marketing Expenses [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation expense 177 159 134
General and Administrative Expenses [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation expense $ 195 $ 209 $ 183