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Stock-Based Compensation And Benefit Plans (Schedule Of Compensation Expense) (Details) (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]    
Stock-based compensation expenses $ 84 $ 159
Cost Of Sales [Member]
    
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]    
Stock-based compensation expenses   2
Sales And Marketing Expenses [Member]
    
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]    
Stock-based compensation expenses 9 9
Research And Development Expenses [Member]
    
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]    
Stock-based compensation expenses 7 9
General And Administrative Expenses [Member]
    
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]    
Stock-based compensation expenses $ 68 $ 139