Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2019

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

Schedule of total stock-based compensation expense

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2019		2018		2019		2018
Service based awards:
Restricted stock awards	$	-	$	1,012,171	$	-	$	1,271,902
Restricted stock units		427,472		-		771,823		-
Stock option awards		547,139		353,161		1,199,163		539,433
		974,611		1,365,332		1,970,986		1,811,335
Performance based awards:
Restricted stock units		402,814		-		801,202		-
Stock option awards		123,901		-		246,440		-
		526,715		-		1,047,642		-
Total	$	1,501,326	$	1,365,332	$	3,018,628	$	1,811,335

Schedule of restricted stock award

A summary of the Company’s restricted stock awards during the six months ended June 30, 2019 is as follows:

			Weighted Average
			Grant-Date
	Number of Shares		Fair Value
Unvested at December 31, 2018	146,800	$	5.70
Unvested at June 30, 2019	146,800	$	5.70

A summary of the Company’s restricted stock awards during the six months ended June 30, 2018 is as follows:

			Weighted Average
			Grant-Date
	Number of Shares		Fair Value
Unvested at December 31, 2017	480,000	$	7.27
Unvested at June 30, 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
Granted	199,938		4.45
Forfeited	(3,650)		4.81
Unvested at June 30, 2019	669,247	$	4.36

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 June 30, 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 six months ended June 30, 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	523,105	$	4.33	9.7		-
Exercised	(30,000)	$	4.93	-		-
Forfeited	(550,549)		6.67	-		-
Outstanding at June 30, 2019	7,799,036	$	7.36	5.4	$	2,500
Exercisable at June 30, 2019	6,183,193	$	8.16	4.3	$	-

A summary of the Company’s service based stock option activity for the six months ended June 30, 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	5.0	$	976,335
Forfeited	(100,000)	$	6.93	-
Outstanding at June 30, 2018	6,806,001	$	7.93	4.6	$	629,680
Exercisable at June 30, 2018	6,578,161	$	7.93	4.5	$	629,680

Schedule of Stock Option Assumptions

	June 30,
	2019
Exercise price	$2.96 - $6.21
Expected stock price volatility	67.5% - 70.3%
Risk-free interest rate	1.9% - 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 options activity

			Weighted Average
			Exercise
	Number of Shares		Price
Outstanding at December 31, 2018	388,125	$	4.70
Outstanding at June 30, 2019	388,125	$	4.70
Exercisable at June 30, 2019	-	$	-