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Stockholders Equity (Tables) (Imported)

6 Months Ended

Jun. 30, 2016

Stock-Based Compensation Expense

Stock-based compensation expense was classified on the statement of operations as follows for the three and six months ended June 30, 2016 and 2015:

		Three Months Ended June 30,						Six Months Ended June 30,
		2016			2015			2016			2015
Research and development expense		$	257,998		$	178,367		$	511,280		$	381,274
General and administrative expense			513,689			279,863			987,953			664,470
Total stock-based compensation expense		$	771,687		$	458,230		$	1,499,233		$	1,045,744

2003 Stock Incentive Plan

Company's Stock Option Activity

A summary of the Company’s stock option activity under the 2003 Plan for the six months ended June 30, 2016 is as follows:

							WEIGHTED-AVERAGE
				WEIGHTED-			REMAINING		AGGREGATE
		OUTSTANDING		AVERAGE			CONTRACTUAL TERM		INTRINSIC VALUE
		OPTIONS		EXERCISE PRICE			(YEARS)		(IN THOUSANDS)
Outstanding as of December 31, 2015		758,187		$	1.27		4.2
Options exercised		(25,836)			1.47
Options forfeited		—			—
Outstanding as of June 30, 2016		732,351			1.26		3.7		$	4,401
Vested or expected to vest as of June 30, 2016		732,308			1.26		3.7		$	4,401
Exercisable as of June 30, 2016		730,354			1.25		3.7		$	4,394

2013 Equity Incentive Plan

Company's Stock Option Activity

A summary of the Company’s stock option activity under the 2013 Plan for the six months ended June 30, 2016 is as follows:

							WEIGHTED-AVERAGE
ccc				WEIGHTED-			REMAINING		AGGREGATE
		OUTSTANDING		AVERAGE			CONTRACTUAL TERM		INTRINSIC VALUE
		OPTIONS		EXERCISE PRICE			(YEARS)		(IN THOUSANDS)
Outstanding as of December 31, 2015		1,470,338		$	8.26		8.5
Options granted		608,150			5.31
Options exercised		—			—
Options forfeited		(12,800)			6.20
Outstanding as of June 30, 2016		2,065,688			7.41		8.4		$	1,248
Vested or expected to vest as of June 30, 2016		2,055,858			7.41		8.4		$	1,237
Exercisable as of June 30, 2016		695,045			8.33		7.8		$	20

Weighted-Average Fair Value of Options Granted

		Six Months Ended		Six Months Ended
		June 30, 2016		June 30, 2015
Expected term		6.25 years		6.25 years
Expected volatility		68.82%		81.70%
Risk-free interest rate		1.70%		1.70%
Expected dividend yield		0%		0%

Summary of RSU Activity

The following is a summary of RSU activity under the 2013 Plan for the six months ended June 30, 2016:

					WEIGHTED-AVERAGE
			NUMBER		GRANT DATE
		OF SHARES				FAIR VALUE
Unvested at December 31, 2015			4,833		$	7.62
Granted			14,500			4.61
Forfeited			—			—
Vested			—			—
Unvested at June 30, 2016			19,333			5.36

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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

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-Section S99
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-URI http://asc.fasb.org/extlink&oid=27013229&loc=d3e301413-122809

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14
-Section F

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- Definition

Tabular disclosure of the changes in outstanding nonvested restricted stock units.

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+ References

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+ References

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