Registration of securities issued in business combination transactions

Net Loss Per Common Share (Details)

v3.20.2
Net Loss Per Common Share (Details) - shares
6 Months Ended 12 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Dec. 31, 2018
Stock Options, Restricted Stock Units And Warrants [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Potentially dilutive securities 2,067,713 2,126,063 1,322,602