Stock Compensation (Details) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
Jun. 30, 2012
Schedule of stock-based compensation, stock options, activity
Outstanding shares, Beginning balance	1,992,132
Shares Granted	7,386
Shares Exercised
Shares Forfeited	(300,290)
Outstanding shares, Ending balance	1,699,228
Shares options exercisable, ending balance	1,664,637
Weighted average exercise price, outstanding, beginning balance	$ 6.63
Weighted average exercise price, granted	$ 1.60
Weighted average exercise price, exercised
Weighted average exercise price, forfeited	$ 7.16
Weighted average exercise price, outstanding, ending balance	$ 6.51
Weighted average exercise price, option exercisable	$ 6.62
Aggregate intrinsic value, outstanding	$ 737
Aggregate intrinsic value, option exercisable	$ 683

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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