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Stockholders' Equity - Schedule of Non-Vested Restricted Stock (Details) - Restricted Stock [Member] - $ / shares
3 Months Ended 12 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]      
Restricted stock units, nonvested beginning of period 31,282 57,984  
Restricted stock units, nonvested grants in period 390,625 120,512  
Restricted stock units, nonvested vested in period (104,833) (139,157)  
Restricted stock units, nonvested forfeited in period 0 (8,057)  
Restricted stock units, nonvested ending of period 317,074 31,282 57,984
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]      
Restricted stock units, nonvested weighted average grant date fair value $ 2.15 $ 3.70  
Restricted stock units, nonvested grants in period, weighted average grant date fair value 0.32 1.60  
Restricted stock units , nonvested vested in period, weighted average grant date fair value 0.42 2.24  
Restricted stock units, nonvested forfeited in period, weighted average grant date fair value   3.18  
Restricted stock units, nonvested weighted average grant date fair value $ 0.47 $ 2.15 $ 3.70
Restricted stock units, nonvested weighted average remaining contractual terms 10 months 1 year 11 months 1 year 5 months