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Fair Value Measurement (Tables)

9 Months Ended

Sep. 30, 2014

Fair Value Disclosures [Abstract]

Financial Assets and Liabilities Measured at Fair Value

The following table presents financial assets and liabilities measured at fair value as of September 30, 2014:

		Fair Value Measurement at Report Date Using
		Quoted Prices in Active Markets for Identical Assets (Level 1)				Significant Other Observable Inputs (Level 2)				Unobservable Inputs (Level 3)				As of September 30, 2014
Financial assets:
Cash equivalents:
Money market funds		$	1,821,396			$	—			$	—			$	1,821,396
U.S. Treasury debt obligations			30,164,844				—				—				30,164,844
Total financial assets		$	31,986,240			$	—			$	—			$	31,986,240
Financial liabilities:
Loan payable net of discounts			—				—				15,968,544				15,968,544
Warrant liabilities			—				—				4,011,736				4,011,736
Total financial liabilities		$	—			$	—			$	19,980,280			$	19,980,280

Roll Forward for Financial Assets and Liabilities Measured at Fair Value Using Significant Other Observable Inputs (Level 2)

Level 2 Reconciliation

The following table presents a roll forward for financial assets and liabilities measured at fair value using significant other observable inputs (Level 2) for 2014:

		Level 2 Beginning Balance 12/31/13 $				Settled $				Level 2 Ending Balance 09/30/14 $
Bonds payable			125,000				(125,000	)			—

Roll Forward for Liabilities Measured at Fair Value Using Significant Unobservable Inputs (Level 3)

Level 3 Reconciliation

The following table presents a roll forward for liabilities measured at fair value using significant unobservable inputs (Level 3) for 2014.

		Warrant Liabilities
Balance at December 31, 2013		$	5,541,809
Less fair value of warrants exercised			(1,434,807	)
Less change in fair value of warrants			(95,266	)
Balance at September 30, 2014		$	4,011,736

		Loan payable net of discounts
Balance at December 31, 2013		$	12,909,244
Add loan proceeds			5,775,543
Add amortization of discount			154,961
Less repayments of principal			(2,871,204	)
Balance at September 30, 2014		$	15,968,544
Current portion		$	3,919,286
Non-current portion			12,049,258
Balance at September 30, 2014		$	15,968,544

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- Definition

Fair Value Assets Measured On Recurring Basis Directly Or Indirectly Observable Input Reconciliation Table [Text Block]

+ References

No definition available.

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- Definition

Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258



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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19279-110258

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- Definition

Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19190-110258

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