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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
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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.

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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Agreed-upon price for the exchange of the underlying asset relating to the share-based payment award. + References No definition available. + Details
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- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph e(2)(c) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 14.D.2) -URI http://asc.fasb.org/extlink&oid=6793087&loc=d3e301413-122809 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 -Section D -Subsection 2 + Details
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- Definition The estimated measure of the maximum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References No definition available. + Details
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- Definition The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. + References No definition available. + Details
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- Definition The maximum risk-free interest rate assumption that is used in valuing an option on its own shares. + References No definition available. + Details
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- Definition The minimum risk-free interest rate assumption that is used in valuing an option on its own shares. + References No definition available. + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph c(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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