Stockholders Deficit (Tables)

3 Months Ended

Mar. 31, 2018

A summary of the Company’s stock option activity for the three months ended March 31, 2018 is as follows:

	Number of Shares			Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Life (Years)		Aggregate Intrinsic Value
Balance at December 31, 2017		1,517,771		$	2.97		7.5	$	67,242
Granted		13,000			5.06
Exercised		(18,028	)		2.25			$	21,001
Forfeited		(22,440	)		3.61
Expired/Cancelled		(3,744	)		5.08
Balance at March 31, 2018		1,486,559		$	2.98		7.3	$	1,727,558
Exercisable at March 31, 2018		1,134,693		$	2.98		6.9	$	1,382,104

As of March 31, 2018, there was total unrecognized compensation expense of $584,806 related to unvested stock options, which the Company expects to recognize over a weighted-average period of approximately 1.83 years.

Summary of Restricted Stock Unit (“RSU”) Plans Activity

A summary of restricted stock unit (“RSU”) activity for the three months ended March 31, 2018 is as follows:

	Number of Shares			Weighted- Average Grant Date Fair Value Per Share
Balance at December 31, 2017		26,666		$	2.78
Granted		259,551			3.84
Vested		(269,551	)		3.76
Balance at March 31, 2018		16,666		$	3.40

Summary of Stock-Based Compensation

Stock-based compensation expense recorded in the accompanying interim unaudited condensed statements of operations for the three months ended March 31, 2018 and 2017 was as follows:

	Three Months Ended March 31,
	2018		2017
Selling, general and administrative	$	1,101,992	$	279,583
Research and development		30,909		88,361
Cost of revenue		10,557		28,702
	$	1,143,458	$	396,646