Quarterly report pursuant to Section 13 or 15(d)

Stock Options, Warrants and Restricted Common Stock (Schedule of Stock-based Compensation) (Details)

v3.20.1
Stock Options, Warrants and Restricted Common Stock (Schedule of Stock-based Compensation) (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation $ 1,914 $ 235
Restricted stock awards under Plan [Member]    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation 1,914 177
Stock option awards under Plan [Member]    
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]    
Total stock-based compensation $ 58