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Stock-Based Compensation (Details 3) (Stock Options [Member], USD $) In Thousands, except Per Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options Outstanding	23,474	21,525
Stock Options Outstanding, Weighted Average Exercise Price	$ 2.42	$ 2.51
Stock Options Granted	3,473
Stock Options Granted, Weighted Average Exercise Price	$ 2.13
Stock Options Exercised	(498)
Stock Options Exercised, Weighted Average Exercise Price	$ 1.75
Stock Options Expired	(883)
Stock Options Expired, Weighted Average Exercise Price	$ 3.93
Stock Options Forfeited	(143)
Stock Options Forfeited, Weighted Average Exercise Price	$ 1.97
Stock Options Exercisable	16,868
Stock Options Exercisable, Weighted Average Exercise Price	$ 2.59

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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.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

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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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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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

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Number of options outstanding, including both vested and non-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 of the plan that expired.

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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 per share amount at which grantees can acquire shares of common stock by exercise of options.

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

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-Publisher SEC

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-Number 210

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