Stock-Based Compensation (Summary Of Stock Option Activity) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	6 Months Ended
Jun. 30, 2013
Stock-Based Compensation [Abstract]
Options outstanding at December 31, 2012 (in shares)	303
Options exercised (in shares)	(30)
Options canceled (in shares)	(10)
Options outstanding at March 31, 2013 (in shares)	263
Options vested at March 31, 2013 (in shares)	263
Options outstanding at December 31, 2012, Weighted-Average Exercise Price (in dollars per share)	$ 5.08
Options exercised, Weighted-Average Exercise Price (in dollars per share)	$ 2.18
Options canceled, Weighted-Average Exercise Price (in dollars per share)	$ 0.63
Options outstanding at March 31, 2013, Weighted-Average Exercise Price (in dollars per share)	$ 5.58
Options vested at March 31, 2013, Weighted-Average Exercise Price (in dollars per share)	$ 5.58

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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- Definition

As of the balance sheet date, the number of shares into which fully vested and expected to vest stock options outstanding can be converted under the option plan.

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As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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No definition available.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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No definition available.

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Number of share options (or share units) exercised during the current period.

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