Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation Plan (Schedule Of Valuation Assumptions Used In Computing Fair Value Of Stock-Based Awards) (Details)

v2.4.0.6
Stock-Based Compensation Plan (Schedule Of Valuation Assumptions Used In Computing Fair Value Of Stock-Based Awards) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Stock Options
Dec. 31, 2011
Stock Options
Minimum [Member]
Dec. 31, 2011
Stock Options
Maximum [Member]
Dec. 31, 2012
Stock Option One [Member]
Dec. 31, 2010
Stock Option One [Member]
Dec. 31, 2012
Stock Option One [Member]
Minimum [Member]
Dec. 31, 2010
Stock Option One [Member]
Minimum [Member]
Dec. 31, 2012
Stock Option One [Member]
Maximum [Member]
Dec. 31, 2010
Stock Option One [Member]
Maximum [Member]
Dec. 31, 2012
Stock Option Two [Member]
Dec. 31, 2010
Stock Option Two [Member]
Dec. 31, 2012
Stock Option Two [Member]
Minimum [Member]
Dec. 31, 2010
Stock Option Two [Member]
Minimum [Member]
Dec. 31, 2012
Stock Option Two [Member]
Maximum [Member]
Dec. 31, 2010
Stock Option Two [Member]
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                
Options granted 770 233     270 100         500 540        
Vesting period     1 year 5 years     1 year   5 years       3 years 1 year 6 years 4 years 6 months
Grant price     $ 6.22 $ 8.86   $ 6.85 $ 7.64   $ 9.89       $ 13.00 $ 6.25 $ 16.00 $ 6.85
Dividend yield   0.00%     0.00% 0.00%         0.00% 0.00%        
Expected volatility, minimum     55.80% [1]       53.30% [1] 54.60% [1]         50.30% [1] 53.00% [1]    
Expected volatility, maximum       59.60% [1]         59.20% [1] 71.70% [1]         58.60% [1] 55.10% [1]
Risk-free interest rate, minimum     1.41%       0.71% 0.34%         0.39% 1.58%    
Risk-free interest rate, maximum       2.92%         1.44% 2.10%         1.04% 2.75%
Expected life (years)     5 years 3 months 22 days [2] 6 years 11 months 12 days [2]     5 years 3 months 22 days [2] 1 year 3 months 15 days [2] 7 years 3 months 29 days [2] 5 years [2]     3 years 3 months [2] 5 years 3 months 22 days [2] 6 years 3 months [2] 6 years 5 months 12 days [2]
Weighted average fair value     $ 3.65 $ 5.04     $ 4.40 $ 2.18 $ 5.34 $ 3.33     $ 2.64 $ 3.26 $ 3.94 $ 3.83
[1] Since the Company’s historical volatility was not representative of the ongoing future business, the Company’s historical volatility was based on a combination of the Company’s volatility and the historical volatility of a peer group of companies within similar industries and similar size as the Company.
[2] Because the Company does not have sufficient historical exercise data to provide a reasonable basis upon which to estimate the expected term for these grants, the Company utilized the simplified method in developing an estimate of the expected term of these options.