Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2019

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Schedule of total stock-based compensation expense

	Three Months Ended
	March 31,
	2019		2018
Service based awards:
Restricted stock awards	$	-	$	240,827
Restricted stock units		344,351		-
Stock option awards		652,024		205,176
		996,375		446,003
Performance based awards:
Restricted stock units		398,388		-
Stock option awards		122,539		-
		520,927		-
Total	$	1,517,302	$	446,003

Schedule of restricted stock award

A summary of the Company’s restricted stock awards during the three months ended March 31, 2019 is as follows:

			Weighted Average
			Grant-Date
	Number of Shares		Fair Value
Unvested at December 31, 2018	146,800	$	5.70
Unvested at March 31, 2019	146,800	$	5.70

A summary of the Company’s restricted stock awards during the three months ended March 31, 2018 is as follows:

			Weighted Average
			Grant-Date
	Number of Shares		Fair Value
Unvested at December 31, 2017	480,000	$	7.27
Unvested at March 31, 2018	480,000	$	7.27

Restricted stock units - Service based awards

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Schedule of restricted stock award

			Weighted Average
			Grant-Date
	Number of Shares		Fair Value
Unvested at December 31, 2018	472,959	$	4.32
Unvested at March 31, 2019	472,959	$	4.32

Restricted stock units - Performance based awards

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Schedule of restricted stock award

			Weighted Average
			Grant-Date
	Number of Shares		Fair Value
Unvested at December 31, 2018	988,958	$	4.48
Unvested at March 31, 2019	988,958	$	4.48

Stock option awards - Service based awards

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Schedule of stock options activity

A summary of the Company’s service based stock option activity for the three months ended March 31, 2019 is as follows:

				Weighted
			Weighted	Average
	Shares		Average	Remaining		Aggregate
	Underlying		Exercise	Contractual		Intrinsic
	Options		Price	Term		Value
Outstanding at December 31, 2018	7,856,480	$	7.50	5.2	$	-
Granted	75,000	$	3.49	9.8
Exercised	(30,000)	$	4.93	-
Outstanding at March 31, 2019	7,901,480	$	7.47	5.0	$	1,959,736
Exercisable at March 31, 2019	6,707,693	$	8.05	4.2	$	206,872

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

				Weighted
			Weighted	Average
	Shares		Average	Remaining		Aggregate
	Underlying		Exercise	Contractual		Intrinsic
	Options		Price	Term		Value
Outstanding at December 31, 2017	6,906,001	$	7.92	5.1	$	976,335
Forfeited	(25,000)	$	8.23	-
Outstanding at March 31, 2018	6,881,001	$	7.92	4.8	$	-
Exercisable at March 31, 2018	6,323,160	$	7.90	4.5	$	738,740

Schedule of Stock Option Assumptions

	March 31,
	2019
Exercise price	$3.08 - $6.21
Expected stock price volatility	67.5% - 68.4%
Risk-free interest rate	2.5% - 2.6%
Term (years)	5.5  -6.5

Stock option awards - Performance based awards

Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]

Schedule of Stock Option Assumptions

			Weighted Average
			Exercise
	Number of Shares		Price
Outstanding at December 31, 2018	388,125	$	4.70
Outstanding at March 31, 2019	388,125	$	4.70
Exercisable at March 31, 2019	-	$	-