Additional Paid-In Capital (Summary Of Option Activity) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2013	Dec. 31, 2012
Additional Paid-In Capital [Abstract]
Number of options, Outstanding	3,102,500	3,102,500
Number of options, Exercisable (in shares)	2,802,500
Weighted average exercise price per share, Outstanding (in dollars per share)	$ 2.80	$ 2.80
Weighted average exercise price per share, Exercisable (in dollars per share)	$ 2.79
Weighted average remaining contractual term, Outstanding	2 years 5 months 5 days	2 years 8 months 5 days
Weighted average remaining contractual term, Exercisable	2 years 3 months
Aggregate intrinsic value, Outstanding	$ 248	$ 637
Aggregate intrinsic value, Exercisable	$ 248

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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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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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 remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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