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Stockholder's Equity (Tables)
 12 Months Ended
Dec. 31, 2020
Stockholders' Equity Note [Abstract]  
Schedule of Share-based Compensation, Stock Options, Activity Stock option activity for the Pre-2017 Non-Qualified Stock Options for the years ended December 31, 2020 and 2019, is presented in the table below: 
 Number of
Shares		Weighted-
average
Exercise
Price		Weighted-
average
Remaining
Contractual
Term
(years)		Aggregate
Intrinsic
Value
Outstanding at December 31, 20182,885,500 $7.30 6.04$20,633,100 
Exercised(379,167)$9.03 
Forfeited(5,833)$10.00 
Outstanding at December 31, 20192,500,500 $7.03 5.05$18,426,325 
Exercised(20,000)$9.50 
Forfeited(15,000)$10.00 
Outstanding at December 31, 20202,465,500 $6.99 4.09$2,773,190 
Exercisable at December 31, 20202,430,502 $6.95 4.15$2,773,190 
 Stock option activity for options granted under the 2017 Plan during the years ended December 31, 2020 and 2019 is presented in the table below:
Number of
Shares Outstanding		Weighted-
average
Exercise
Price		Weighted-
average
Remaining
Contractual
Term
(years)		Aggregate
Intrinsic
Value
Outstanding at December 31, 2018343,550 $28.97 8.95$840 
Granted193,700 $13.82 
Expired— 
Forfeited(45,300)$17.9 
Outstanding at December 31, 2019491,950 $24.08 8.43$81,888 
Granted191,500 $12.12 
Expired— 
Forfeited(71,690)$15.05 
Balance at December 31, 2020611,760 $21.39 7.85$— 
Exercisable at December 31, 2020323,055 $26.01 7.25$— 
Schedule of Assumptions Used in the Valuation The assumptions used in the valuation of options granted under the 2017 Plan during the years ended December 31, 2020 and 2019 were as follows:
Year Ended December 31, 2020Year Ended December 31, 2019
Market value of stock on measurement date
$8.79 to $13.60
$11.26 to $15.65
Risk-free interest rate
0.33% to 1.68%
1.67% to 2.57%
Dividend yield— %— %
Volatility factor
91% to 101%
104% to 139%
Term (years)
5.5 to 6.25
5.5 to 6.25
Schedule of Nonvested Restricted Stock Units Activity Restricted stock activity during the year ended December 31, 2020 is presented in the following table.
Number of SharesGrant Date Fair Value Per Share
Restricted stock units outstanding December 31, 201927,000 $14.51
Restricted stock granted49,600 $12.00
Restricted stock forfeited(27,000)$14.51
Restricted stock units outstanding December 31, 202049,600 $12.00
Schedule of Share-based Compensation, Warrant Activity Warrant activity for the years ended December 31, 2020 and 2019 is presented in the table below:
Number of
Warrants		Weighted-
average
Exercise
Price		Weighted-
average
Remaining
Contractual
Term
(years)		Aggregate
Intrinsic
Value
Outstanding at December 31, 2018353,610 $9.78 4.6$1,651,165 
Exercised(11,000)$10.00 
Outstanding at December 31, 2019342,610 $9.77 3.71$1,585,084 
Exercised(59,510)$10.00 
Forfeited(4,300)$10.00 
Outstanding at December 31, 2020278,800 $9.72 3.51$1,164 
Exercisable at December 31, 2020278,800 $9.72 3.51$1,164