Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies (Tables)

Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2018

Schedule of Cash and Cash Equivalents and Restricted Cash

Cash, cash equivalents, and restricted cash consists of the following:

	June 30, 2018		December 31, 2017
Cash	$	1,486,733	$	206,510
Money market fund		63,189,805		62,330,985
Cash and cash equivalents		64,676,538		62,537,495

Restricted cash		—		158,991
Total cash, cash equivalents, and restricted cash shown in the statement of cash flows	$	64,676,538	$	62,696,486

Schedule of Computation of Basic and Diluted Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share for the three and six months ended June 30, 2018 and 2017:

	Three Months Ended June 30						Six Months Ended June 30
	2018			2017			2018			2017
Basic and diluted net loss per share of common stock:
Net loss	$	(12,069,351	)	$	(7,296,887	)	$	(23,764,736	)	$	(14,762,326	)
Weighted average shares of common stock outstanding		57,157,955			50,193,726			56,764,935			48,298,135
Net loss per share of common stock-basic and diluted	$	(0.21	)	$	(0.15	)	$	(0.42	)	$	(0.31	)

Schedule of Potentially Dilutive Securities Excluded from Computation of Dilutive Weighted Average Shares Outstanding

The impact of the following potentially dilutive securities outstanding during June 30, 2018 and 2017 have been excluded from the computation of dilutive weighted average shares outstanding as the inclusion would be anti-dilutive.

	June 30,
	2018		2017
Warrants		2,288,500		1,288,500
Stock options		9,468,991		7,700,862
Total		11,757,491		8,989,362