General form of registration statement for all companies including face-amount certificate companies

Net Loss Per Share of Common Stock - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details)

v3.20.2
Net Loss Per Share of Common Stock - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) - shares
 3 Months Ended 12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Antidilutive securities excluded from computation of earnings per share 782,923 660,511 715,452 588,586
Stock Options and Purchase Warrants [Member]        
Antidilutive securities excluded from computation of earnings per share 725,423 642,657 654,569 571,055
Senior Convertible Notes [Member]        
Antidilutive securities excluded from computation of earnings per share 57,500 17,854 60,883 17,531