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.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

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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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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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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

-Publisher FASB

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

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As of the balance sheet date, the weighted-average exercise price for outstanding stock options that are fully vested or expected to vest.

+ References

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

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

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

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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

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Warrants for Stock (Details 1) (USD $)	12 Months Ended
Warrants for Stock (Details 1) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Outstanding Warrants
Number of Shares Underlying Warrants	610,000	150,000
Warrant [Member]
Outstanding Warrants
Number of Shares Underlying Warrants	5,937,386	4,931,386	2,695,386
Weighted Average Exercise Price (in dollars per share)	$ 0.66	$ 0.76	$ 1.15
Exercisable Warrants
Number of Shares Underlying Warrants	5,937,386	4,931,386
12.50 - $17.50 [Member]
Outstanding Warrants
Number of Shares Underlying Warrants	125,245
Weighted Average Exercise Price (in dollars per share)	$ 13.03
Weighted Average Remaining Contractual Life (in years)	6 years 7 months 13 days
Exercisable Warrants
Number of Shares Underlying Warrants	125,245
Weighted Average Exercise Price (in dollars per share)	$ 13.03
12.50 - $17.50 [Member] \| Warrant [Member]
Exercise price range, lower limit (in dollars per share)	$ 12.50	$ 12.50
Exercise price range, upper limit (in dollars per share)	$ 17.50	$ 17.50
Outstanding Warrants
Number of Shares Underlying Warrants		125,245
Weighted Average Exercise Price (in dollars per share)		$ 13.03
Weighted Average Remaining Contractual Life (in years)		7 years 7 months 6 days
Exercisable Warrants
Number of Shares Underlying Warrants		125,245
Weighted Average Exercise Price (in dollars per share)		$ 13.03
0.13 - $2.50 [Member]
Outstanding Warrants
Number of Shares Underlying Warrants	5,812,141
Weighted Average Exercise Price (in dollars per share)	$ 0.39
Weighted Average Remaining Contractual Life (in years)	3 years 2 months 1 day
Exercisable Warrants
Number of Shares Underlying Warrants	5,812,141
Weighted Average Exercise Price (in dollars per share)	$ 0.31
0.13 - $2.50 [Member] \| Warrant [Member]
Exercise price range, lower limit (in dollars per share)	$ 0.13
Exercise price range, upper limit (in dollars per share)	$ 2.50
0.25 - $2.50 [Member] \| Warrant [Member]
Exercise price range, lower limit (in dollars per share)		$ 0.25
Exercise price range, upper limit (in dollars per share)		$ 2.50
Outstanding Warrants
Number of Shares Underlying Warrants		4,806,141
Weighted Average Exercise Price (in dollars per share)		$ 0.43
Weighted Average Remaining Contractual Life (in years)		2 years 10 months 24 days
Exercisable Warrants
Number of Shares Underlying Warrants		4,806,141
Weighted Average Exercise Price (in dollars per share)		$ 0.43