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Consolidated Statement of Stockholders' Equity (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Issuance cost on issuance of common stock and warrants	$ 1,335,327us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	$ 2,051,699us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts	$ 900,992us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts
Common Stock [Member]
Issuance cost on issuance of common stock and warrants	1,335,327us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	2,051,699us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember	900,992us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Additional Paid-in Capital [Member]
Issuance cost on issuance of common stock and warrants	$ 1,335,327us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	$ 2,051,699us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember	$ 900,992us-gaap_AdjustmentsToAdditionalPaidInCapitalStockIssuedIssuanceCosts / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember

X

- Definition

Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.3-04)

-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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