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Stock Option Plans (Tables)

9 Months Ended

Sep. 30, 2016

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Stock Option Activity

The Company’s stock option activity for the nine months ended September 30, 2016 was as follows:

					Weighted‑
					Average				Weighted‑Average
		Number			Exercise				Contractual
		of Shares			Price				Life (years)
Outstanding at December 31, 2015		1,529,459			6.29				9.00
Granted		928,250			4.41
Exercised		(5,313	)		1.65
Forfeited/canceled		(350,432	)		6.85
Outstanding at September 30, 2016		2,101,964			$	5.37			8.65
Options exercisable at September 30, 2016		646,142			$	5.33			7.40

Schedule of Stock Compensation Expense

Total stock-based compensation expense for the three and nine months ended September 30, 2016 was recognized as follows in the statements of comprehensive loss (in thousands):

		Three Months Ended September 30,								Nine Months Ended September 30,
		2016				2015				2016				2015
Research and development expense		$	155			$	57			$	261			$	137
General and administrative expense		358				153				941				424
Total stock based compensation		$	513			$	210			$	1,202			$	561

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- References

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- Definition

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

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- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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