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Fair Value Measurements (Fair Value Measurements On A Recurring Basis) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Sep. 30, 2013
Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Cash and cash equivalents, Carrying amount $ 887 $ 1,505 $ 1,116 $ 1,102
Treasury Bills, fair value 6,543 5,227    
Available-for-sale Securities, Fair Value 7,795 7,945    
Obligations [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Contingent Earn-out, Fair Value 472      
Contingent Earn-out, Carrying Value 472      
Fair Value, Inputs, Level 1 [Member] | Obligations [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Contingent Earn-out, Fair Value 0      
Fair Value, Inputs, Level 2 [Member] | Obligations [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Contingent Earn-out, Fair Value 0      
Fair Value, Inputs, Level 3 [Member] | Obligations [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Contingent Earn-out, Fair Value 472      
Small Cap Technology Sector [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Available-for-sale Securities, Carrying amount 1,252 2,718    
Available-for-sale Securities, Fair Value 1,252 2,718    
Small Cap Technology Sector [Member] | Fair Value, Inputs, Level 1 [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Available-for-sale Securities, Fair Value 1,252 2,718    
Small Cap Technology Sector [Member] | Fair Value, Inputs, Level 2 [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Available-for-sale Securities, Fair Value 0 0    
Small Cap Technology Sector [Member] | Fair Value, Inputs, Level 3 [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Available-for-sale Securities, Fair Value 0 0    
Money Market [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Cash and cash equivalents, Carrying amount 353 540    
Cash and cash equivalents, Fair Value 353 540    
Money Market [Member] | Fair Value, Inputs, Level 1 [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Cash and cash equivalents, Fair Value 353 540    
Money Market [Member] | Fair Value, Inputs, Level 2 [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Cash and cash equivalents, Fair Value 0 0    
Money Market [Member] | Fair Value, Inputs, Level 3 [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Cash and cash equivalents, Fair Value 0 0    
Commercial Paper [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Cash and cash equivalents, Carrying amount 345 601    
Cash and cash equivalents, Fair Value 345 601    
Commercial Paper [Member] | Fair Value, Inputs, Level 1 [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Cash and cash equivalents, Fair Value 345 601    
Commercial Paper [Member] | Fair Value, Inputs, Level 2 [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Cash and cash equivalents, Fair Value 0 0    
Commercial Paper [Member] | Fair Value, Inputs, Level 3 [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Cash and cash equivalents, Fair Value 0 0    
Treasury Bills [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Treasury Bills, carrying value 6,543 5,227    
Treasury Bills, fair value 6,543 5,227    
Treasury Bills [Member] | Fair Value, Inputs, Level 1 [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Treasury Bills, fair value 6,543 5,227    
Treasury Bills [Member] | Fair Value, Inputs, Level 2 [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Treasury Bills, fair value 0 0    
Treasury Bills [Member] | Fair Value, Inputs, Level 3 [Member]
        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Treasury Bills, fair value $ 0 $ 0