The percentage of services completed per the contract during the reporting period.

No definition available.

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- Details

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- Definition

Average price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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Data Type:	num:perShareItemType
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- Definition

Represents the number of shares to be issued for services performed per the agreement.

+ References

No definition available.

+ Details

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Data Type:	xbrli:sharesItemType
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- Definition

The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.29)

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 30

-Article 5

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Balance Type:	na
Period Type:	instant

- Definition

The cash outflow for cost incurred directly with the issuance of an equity security.

+ References

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 15

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585

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Balance Type:	credit
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- Definition

The cash inflow from the additional capital contribution to the entity.

+ References

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

+ Details

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Balance Type:	debit
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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

+ Details

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Balance Type:	debit
Period Type:	duration

- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	na
Period Type:	instant

- Definition

Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.

+ References

No definition available.

+ Details

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of new stock issued during the period.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: 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

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-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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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

-Article 5

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- Definition

Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders.

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	duration

- Details

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Acquisition and Stockholders' Equity (Deficit) (Details 4) (USD $)	12 Months Ended			0 Months Ended	1 Months Ended	3 Months Ended		0 Months Ended	2 Months Ended	3 Months Ended	10 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Oct. 18, 2012	Jan. 31, 2013	Mar. 31, 2013	Dec. 31, 2012	Apr. 16, 2013	Mar. 04, 2014	Dec. 31, 2012	Dec. 31, 2014	Jan. 15, 2013	Oct. 17, 2012
Acquisition and Stockholders' Equity (Deficit)
Fair value of common stock issued for services rendered		$ 250,000	$ 93,000
Common stock price (in dollars per share)													$ 4.57us-gaap_SharePrice
Stock based compensation expense	4,722,000us-gaap_ShareBasedCompensation	4,614,000us-gaap_ShareBasedCompensation	2,515,000us-gaap_ShareBasedCompensation
Number of authorized shares of common stock	200,000,000us-gaap_CommonStockSharesAuthorized	200,000,000us-gaap_CommonStockSharesAuthorized	100,000,000us-gaap_CommonStockSharesAuthorized				100,000,000us-gaap_CommonStockSharesAuthorized			100,000,000us-gaap_CommonStockSharesAuthorized	200,000,000us-gaap_CommonStockSharesAuthorized	200,000,000us-gaap_CommonStockSharesAuthorized
Gross proceeds from sale of common stock by the entity (in dollars)	30,700,000	94,734,000	55,862,000
Stock issuance costs	861,000us-gaap_PaymentsOfStockIssuanceCosts	5,623,000us-gaap_PaymentsOfStockIssuanceCosts	3,774,000us-gaap_PaymentsOfStockIssuanceCosts
CRO
Acquisition and Stockholders' Equity (Deficit)
Fair value of common stock issued for services rendered				250,000
Shares to be issued for services performed				55,000
Common stock price (in dollars per share)				$ 4.55
Percentage of services completed of total contract							50.00%
Stock based compensation expense					125,000		125,000
Common stock issued for services rendered (in shares)						55,000
April 2013 Registered Direct Offering
Acquisition and Stockholders' Equity (Deficit)
Common stock price (in dollars per share)								$ 5.50
Number of shares of common stock closed under an underwritten public offering								16,375,000
Gross proceeds from sale of common stock by the entity (in dollars)								90,000,000
Stock issuance costs								5,500,000
June 2012 Amended Controlled Equity Offering Sales Agreement
Acquisition and Stockholders' Equity (Deficit)
Number of shares of common stock closed under an underwritten public offering	6,417,450	758,093							3,644,143	815,654	2,773,507
Gross proceeds from sale of common stock by the entity (in dollars)	30,700,000	4,700,000							21,200,000	4,111,802	9,500,000
Average selling price (in dollars per share)		$ 6.16							$ 5.82	$ 5.04	$ 3.42
Stock issuance costs		$ 100,000