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Summary Of Significant Accounting Policies (Schedule Of Weighted-Average Shares Outstanding) (Details)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Summary Of Significant Accounting Policies [Abstract]      
Weighted average number of shares outstanding-basic 28,693 28,032 27,231
Stock Options   125 200
Warrants         
Non-vested stock and stock units   327 328
Weighted average number of shares outstanding-diluted 28,693 28,484 27,759
Anti-dilutive securities 643 41 3