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Additional Paid-In Capital (Summary Of Warrant Activity) (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Additional Paid-In Capital [Abstract]      
Warrants outstanding (in shares) 19,977,743 15,850,238  
Warrants exercised (in shares)   (619,565)  
Warrants expired (in shares)   (10,871)  
Warrants issued (Note 9) (in shares)   4,757,941  
Warrants outstanding (in shares) 19,977,743 19,977,743 15,850,238
Warrants valuation $ 12,936 $ 12,936 $ 10,288
Warrants valuation, exercised   (601)  
Warrants expired in period   (11)  
Warrants valuation, issued   3,260  
Warrants valuation 12,936 12,936 10,288
Weighted average exercise price per share $ 4.63 $ 4.25 $ 3.91
Weighted average remaining life (yrs.) 1 year 7 months 6 days 2 years 7 months 6 days 3 years 8 months 12 days
Intrinsic value     $ 485