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Derivative Financial Instruments (Details Textual) (USD $) In Millions, except Share data, unless otherwise specified	Jun. 30, 2012	May 10, 2012	Dec. 31, 2011	Nov. 08, 2011	Apr. 08, 2011	Oct. 11, 2010
Derivative Financial Instruments (Textual) [Abstract]
Mean prices derived from the stochastic process, multiplied percentage	110.00%
Issued warrants to acquire common shares		260,417		1,302,083	525,000	1,800,000
Shares accessible based upon election to require				434,027
Probability of management elect to receive funding			60.00%
Orginal principal amount		$ 8.0
Maximum [Member]
Derivative [Line Items]
Expected mean selling price, estimated price range	3.70		2.63
Minimum [Member]
Derivative [Line Items]
Expected mean selling price, estimated price range	3.54		2.49

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- Definition

Expected mean selling price.

+ References

No definition available.

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- Definition

Issued warrants to acquire common shares.

+ References

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- Definition

Percentage of mean price derived from stochastic process.

+ References

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Probability of management elect to receive funding.

+ References

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Shares accessible based upon election to require.

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- Definition

The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

-Paragraph 16, 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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