Shareholders' Equity And Stock-Based Compensation (Summary Of Stock Option Activity) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
Sep. 30, 2013
Shareholders' Equity And Stock-Based Compensation [Abstract]
Number of Shares, Outstanding at December 31, 2012	1,244
Number of Shares, Options forfeited or cancelled	(13)
Number of Shares, Options granted	192
Number of Shares, Options exercised	(2)
Number of Shares, Outstanding at September 30, 2013	1,421
Number of Shares, Exercisable at September 30, 2013	1,056
Number of Shares, Available for future grant at December 31, 2012	359
Number of Shares, Available for future grant at September 30, 2013	180
Weighted-average Exercise Price, Outstanding at December 31, 2012	$ 5.97
Weighted-average Exercise Price, Options forfeited or cancelled	$ 5.28
Weighted-average Exercise Price, Options granted	$ 4.06
Weighted-average Exercise Price, Options exercised	$ 2.41
Weighted-average Exercise Price, Outstanding at September 30, 2013	$ 5.73
Weighted-average Exercise Price, Exercisable at September 30, 2013	$ 6.02
Aggregate Intrinsic Value, Outstanding at September 30, 2013	$ 378
Aggregate Intrinsic Value, Exercisable at September 30, 2013	$ 378

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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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.

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Net number of share options (or share units) granted during the period.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding.

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

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

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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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Weighted average price at which grantees can acquire the shares reserved for issuance on stock options awarded.

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

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