Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details Textual)

v3.20.2
Stockholders' Equity (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
May 01, 2019
Jun. 22, 2017
Feb. 28, 2019
Jun. 30, 2020
Jun. 30, 2019
Mar. 31, 2019
Jun. 30, 2020
Jun. 30, 2019
Class of Stock [Line Items]                
Deemed dividends       $ 0 $ 86,207   $ 0 $ 86,207
Issuance of common stock         $ 2,928,500     $ 5,928,235
Cowen Agreement                
Class of Stock [Line Items]                
Issuance of common stock   $ 25,000,000.0            
Shares issued (in shares)           1,609,373    
Proceeds from issuance           $ 1,500,000    
Private Placement                
Class of Stock [Line Items]                
Sale of stock (in usd per share)     $ 0.95          
Subscription Agreements                
Class of Stock [Line Items]                
Shares purchased (in shares)     1,616,683          
Common stock purchase price     $ 1,500,000          
Purchase of additional common stock (in shares) 116,496              
Deemed dividends $ 86,207              
Benjamin Samuels | Private Placement                
Class of Stock [Line Items]                
Shares issued in public offering (in shares)     841,928          
Gerald Budde | Private Placement                
Class of Stock [Line Items]                
Shares issued in public offering (in shares)     26,310