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Stockholders' Equity and Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2019

Equity [Abstract]

Schedule of Stock Option Plan Activity

A summary of stock option activity under the Plans for the three months ended March 31, 2019 is as follows:

		Number of shares				Weighted Avg. Exercise Price				Weighted Avg. Remaining Contractual Life				Aggregate Intrinsic Value
Options outstanding - January 1, 2019			2,482,009			$	5.10
Options granted			291,000			$	6.30
Options exercised			-			$	-
Options cancelled/forfeit			(44,287	)		$	6.24
Options outstanding - March 31, 2019			2,728,722			$	5.21				5.76			$	5,994
Options exercisable			1,398,665			$	4.74				6.02			$	3,763
Options vested and expected to vest			2,604,215			$	5.17				5.78			$	5,815

Schedule of Fair Value Assumptions

The table below illustrates the fair value per share determined by the Black-Scholes-Merton option pricing model with the following assumptions used for valuing options granted to employees:

		2019
Weighted-average fair value of options granted		$	3.71
Expected terms (in years)			5.8 - 6.1
Expected volatility			64% - 67	%
Risk-free interest rate			2.54% - 2.68	%
Dividend yield			-

Schedule of Stock Option Outstanding and Exercisable

The following table summarizes information about stock options outstanding and exercisable at March 31, 2019:

			Options Outstanding												Options Exercisable
							Weighted
							Average
							Remaining				Weighted								Weighted
Range of							Contractual				Average								Average
Exercise			Number				Life in				Exercise				Number				Exercise
Prices			Outstanding				Years				Price				Exercisable				Price
$1.47 - $2.60				828,748				7.48			$	2.04				479,534			$	2.13
$2.76 - $4.22				535,871				6.73			$	3.96				449,399			$	3.98
$5.61 - $6.30				390,350				8.47			$	6.21				98,096			$	5.97
$6.64 - $8.99				968,723				2.69			$	8.00				366,606			$	8.24
$42.80				5,030				1.37			$	42.80				5,030			$	42.80
$1.47 - $42.80				2,728,722				5.76			$	5.21				1,398,665			$	4.74

Schedule of Restricted Stock Units Activity

A summary of the Company’s RSU activity and related information for the three months ended March 31, 2019 is as follows:

		Number of RSUs				Weighted Average Grant Date Fair Value
RSUs unvested - January 1, 2019			1,275,680			$	2.16
RSUs granted			135,000			$	6.30
RSUs vested			(34,090	)		$	2.20
RSUs cancelled/forfeit			-
RSUs unvested at March 31, 2019			1,376,590			$	2.56

Schedule of Warrants Activity

A summary of warrant activity for the three months ended March 31, 2019 is as follows:

		Number of Shares Subject to Warrants Outstanding				Weighted Avg. Exercise Price
Warrants outstanding - January 1, 2019			2,206,973			$	1.91
Granted			-
Exercised			(474,055	)			1.79
Expired			-
Warrants outstanding and exercisable - March 31, 2019			1,732,918			$	1.94
Weighted average remaining contractual life of the outstanding warrants in years - March 31, 2019			2.79

Schedule of Warrants Outstanding and Warrants Exercisable

A list of the warrants outstanding as of March 31, 2019 is included in the following table:

		Warrants Outstanding and Exercisable
				Warrants				Exercise				Expiration
Warrant Series		Issue Date		Outstanding				Price				Date
Lender warrants		5/11/2015			125,000			$	1.79			5/11/2025
Settlement warrants		8/16/2016			40,000			$	3.75			8/16/2021
PIPE investor and placement agent warrants		12/27/2016			952,532			$	1.79			12/27/2019
Lender warrants		7/19/2017			615,386			$	2.08			7/19/2024
					1,732,918			$	1.94

Schedule of Stock Based Compensation Granted to Employees Directors Consultants

The Company recorded stock-based compensation related to equity instruments granted to employees, directors and consultants as follows:

		For the				For the
		Three Months Ended				Three Months Ended
		March 31, 2019				March 31, 2018
Employees - selling, general and administrative		$	638				593
Directors - selling, general and administrative			75				50
Consultants - selling, general and administrative			75				108
Total		$	788			$	751

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