Stock-based Compensation (Schedule of Option and Warrant Activity) (Details) (USD $)	6 Months Ended
Jun. 30, 2013
Options and Warrants Outstanding
Outstanding at December 31, 2012	43,396,863
Expired	(448,094)
Forfeited	(506,800)
Exercised
Outstanding at June 30, 2013	43,291,969
Weighted Average Exercise Price
Outstanding at December 31, 2012	$ 0.54
Expired	$ 1.05
Forfeited	$ 1.41
Exercised
Outstanding at June 30, 2013	$ 0.48
Stock Options [Member]
Options and Warrants Outstanding
Granted/Issued
Weighted Average Exercise Price
Granted/Issued
Warrant [Member]
Options and Warrants Outstanding
Granted/Issued	850,000
Weighted Average Exercise Price
Granted/Issued	$ 0.25

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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.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(4)

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(3)

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

+ References

No definition available.

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Number of options outstanding, including both vested and non-vested options.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

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- Definition

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

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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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 of the plan that expired.

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

+ References

No definition available.

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

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