Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Schedule Of Fair Value Of Assets And Liabilities Measured On Recurring Basis) (Details)

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Fair Value Measurements (Schedule Of Fair Value Of Assets And Liabilities Measured On Recurring Basis) (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair Value $ 24,466 $ 13,233
Fair Value, Measurements, Recurring | Estimate of Fair Value, Fair Value Disclosure
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total Assets 24,466 13,233
Fair Value, Measurements, Recurring | Quoted Prices In Active Markets (Level 1)
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total Assets 24,466 13,233
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total Assets 0 0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Total Assets 0 0
Certificates Of Deposit
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair Value 24,466 13,233
Certificates Of Deposit | Fair Value, Measurements, Recurring | Estimate of Fair Value, Fair Value Disclosure
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair Value 24,466 13,233
Certificates Of Deposit | Fair Value, Measurements, Recurring | Quoted Prices In Active Markets (Level 1)
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair Value 24,466 13,233
Certificates Of Deposit | Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair Value 0 0
Certificates Of Deposit | Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair Value $ 0 $ 0