The cash inflow from issuance of rights to purchase common shares at predetermined price (usually issued together with corporate debt).

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585

Name:	us-gaap_ProceedsFromIssuanceOfWarrants
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Subsequent Events (Details) (USD $)	9 Months Ended		0 Months Ended		0 Months Ended
Subsequent Events (Details) (USD $)	Sep. 30, 2013	Sep. 30, 2012	Oct. 02, 2013 Subsequent Event [Member]	Dec. 31, 2012 Share Distribution [Member]	Oct. 02, 2013 Share Distribution [Member] Subsequent Event [Member]
Subsequent Event [Line Items]
Upfront payment received			$ 10,000,000
Common stock sold under sales agreement	14,011,526			9,344,611	348,995
Proceeds from issuance of common stock and warrants	29,077,495	1,225,588			782,000
Common Sock Issued, Shares, Warrants					375,000
Proceeds from Warrant Exercises			$ 298,000