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Stock Compensation Plans (Restricted Stock and Restricted Stock Units) (Details) (Equity Incentive Plan, Restricted Stock, Restricted Stock, USD $)
In Thousands, except Per Share data, unless otherwise specified
9 Months Ended
Sep. 30, 2013
Equity Incentive Plan | Restricted Stock | Restricted Stock
 
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Oustanding at Beginning of Period (shares) 905
Grants and awards (shares) 1,107
Vested and released (shares) (338)
Forfeitures and cancellations (shares) (157)
Oustanding at End of Period (shares) 1,517
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]  
Oustanding at Beginning of Period, Weighted-Average Grant Date Fair Value (usd per share) $ 4.34
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 4.01
Vested and released, Weighted-Average Grant Date Fair Value (usd per share) $ 4.27
Forfeitures and cancelled, Weighted-Average Grant Date Fair Value (usd per share) $ 3.99
Oustanding at End of Period, Weighted-Average Grant Date Fair Value (usd per share) $ 4.11