Stock-Based Compensation (Details 3) (USD $)	6 Months Ended
Jun. 30, 2012
Summary of all warrant activity
Number of options outstanding, Outstanding at January 1, 2012	19,324
Warrants, issued	1,460,000
Warrants, exercised
Number of options outstanding, Outstanding at June 30, 2012	1,471,200
Share based compensation weighted average exercise price, Outstanding at January 1, 2012	$ 92.19
Weighted Average Exercise Price, issued	$ 4.26
Weighted Average Exercise Price, expired/forfeited	$ 69.36
Weighted Average Exercise Price, exercised
Share based compensation weighted average exercise price, Outstanding at June 30, 2012	$ 6.79
Warrant [Member]
Summary of all warrant activity
Number of options outstanding, Outstanding at January 1, 2012	5,405,606
Warrants, issued
Warrants, expired/forfeited
Warrants, exercised	(223,500)
Number of options outstanding, Outstanding at June 30, 2012	5,182,106
Share based compensation weighted average exercise price, Outstanding at January 1, 2012	$ 1.57
Weighted Average Exercise Price, issued
Weighted Average Exercise Price, expired/forfeited
Weighted Average Exercise Price, exercised	$ 0.61
Share based compensation weighted average exercise price, Outstanding at June 30, 2012	$ 1.61
Share Based Compensation Weighted Average Remaining Contractual Life	2 years 5 months 12 days
Weighted averageremaining contractual life, Outstanding and exercisable, March 31, 2012	1 year 10 months 13 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

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- Definition

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

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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)

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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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- Definition

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 can acquire the shares reserved for issuance on stock options awarded.

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

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