Stock-Based Compensation (Details 3) (USD $)	9 Months Ended
Sep. 30, 2012
Summary of all warrant activity
Number of options outstanding, Outstanding	19,324
Warrants, Issued	1,505,000
Warrants, Exercised
Number of options outstanding, Outstanding	1,516,200
Weighted Average Exercise Price, Outstanding	$ 92.19
Weighted Average Exercise Price, Issued	$ 4.29
Weighted Average Exercise Price, Expired/forfeited	$ 69.36
Weighted Average Exercise Price, Exercised
Weighted Average Exercise Price, Outstanding	$ 5.06
Warrant [Member]
Summary of all warrant activity
Number of options outstanding, Outstanding	5,405,606
Warrants, Issued
Warrants, Expired/forfeited	(62,384)
Warrants, Exercised	(343,817)
Number of options outstanding, Outstanding	4,999,405
Weighted Average Exercise Price, Outstanding	$ 0.57
Weighted Average Exercise Price, Issued
Weighted Average Exercise Price, Expired/forfeited	$ 1.25
Weighted Average Exercise Price, Exercised	$ 1.03
Weighted Average Exercise Price, Outstanding	$ 1.60
Weighted Average Remaining Contractual Life, Outstanding and exercisable	3 years 6 months 22 days
Weighted Average Remaining Contractual Life, Outstanding and exercisable	1 year 7 months 17 days

Share based compensation weighted average remaining contractual life.

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- Definition

For presentations that combine terminations, 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 or that expired.

+ References

+ Details

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- Definition

Weighted average price of options that were either forfeited or expired.

+ References

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- Definition

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

+ References

No definition available.

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- Definition

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.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(1)(b)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Topic 718

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- Definition

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

+ References

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

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- Definition

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

+ References

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

+ References

No definition available.

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- Definition

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

+ References

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

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