Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2020

Stockholders' Equity Note [Abstract]

Share-based Compensation, Stock Options, Activity

Stock option activity for the Pre-2017 Non-Qualified Stock Options for the three months ended March 31, 2020 is presented in the table below:

	Number of Shares		Weighted- average Exercise Price		Weighted- average Remaining Contractual Term (years)	Aggregate Intrinsic Value (in Thousands)
Outstanding at December 31, 2019	2,500,500		$	7.03	5.05	$	18,426
Exercised	(20,000	)	9.50
Forfeited	(15,000	)	10.00
Outstanding at March 31, 2020	2,465,500		$	6.99	4.85	$	6,416

Stock option activity for options granted under the 2017 Plan during the three months ended March 31, 2020 is presented in the table below:

	Number of Options Outstanding		Weighted-average Exercise Price		Weighted-average Remaining Contractual Term (years)	Aggregate Intrinsic Value (in Thousands)
Balance at December 31, 2019	491,950		$	24.08	8.43	$	82
Annual additional options authorized	—		—
Granted	100,100		$	13.17
Exercised	—		—
Forfeited	(32,129	)	$	16.64
Balance at March 31, 2020	559,921		$	22.61	8.40	$	—

Warrant activity for the three months ended March 31, 2020 is presented in the table below:

	Number of Shares		Weighted- average Exercise Price		Weighted- average Remaining Contractual Term (years)	Aggregate Intrinsic Value (in Thousands)
Outstanding at December 31, 2019	342,610		$	9.77	3.71	$	1,585
Exercised	(59,510	)	$	10.00
Forfeited	(4,300	)	$	10.00
Outstanding at March 31, 2020	278,800		$	9.72	4.26	$	61
Exercisable at March 31, 2020	278,800		$	9.72	4.26	$	61

Schedule of Nonvested Share Activity

A summary of the status of the Company’s vested and non-vested Pre-2017 Non-Qualified Stock Options as of March 31, 2020 is presented below:

	Number of Options	Weighted Average Grant Date Fair Value
Vested at March 31, 2020	2,430,502	$	6.95
Non-vested at March 31, 2020	34,998	$	10.00

A summary of the status of the Company’s vested and non-vested options granted under the 2017 Plan as of March 31, 2020 is presented in the following table:

	Number of Shares	Weighted Average Grant Date Fair Value Per Share
Vested	341,132	$	27.15
Non-vested at March 31, 2020	218,789	$	17.92

Restricted Stock Activity

The following summarizes the restricted stock activity under the Company's 2017 Plan during the three months ended March 31, 2020:

	Number of Shares		Weighted Average Issue Date Fair Value Per Share
Restricted stock outstanding and unvested at December 31, 2019	27,000		$	14.51
Restricted stock granted	26,100		$	13.60
Restricted stock forfeited	(13,500	)	$	14.51
Restricted stock outstanding and unvested at March 31, 2020	39,600		$	13.91

Schedule of Assumptions Used in the Valuation

The assumptions used in the valuation of options granted under the 2017 Plan during the three months ended March 31, 2020 are as follows:

	For the Three Months Ended March 31, 2020
Market value of stock on measurement date	$12.15 to $13.60
Risk-free interest rate	1.14% to 1.68%
Dividend yield	—
Volatility factor	94.1% to 101.21%
Term	5.5 to 10 Years