Quarterly report pursuant to Section 13 or 15(d)

Common Stock, Preferred Stock and Warrants - Summary of All Outstanding Common Stock Warrants (Details)

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Common Stock, Preferred Stock and Warrants - Summary of All Outstanding Common Stock Warrants (Details) - $ / shares
Mar. 31, 2021
Dec. 31, 2018
Number of warrants   6,000
Exercise price per share   $ 1.00
Average remaining term in years   5 years
Warrants Issued in Connection with Issuance of Preferred Stock [Member]    
Number of warrants 6,202,861  
Exercise price per share $ 0.35  
Average remaining term in years 2 months 30 days  
Warrants Issued in Connection with Issuance of Series B Preferred Stock to Lead Investor [Member]    
Number of warrants 475,000  
Exercise price per share $ 0.45  
Average remaining term in years 9 months 18 days  
Warrants Issued to Service Provider [Member]    
Number of warrants 750,000  
Exercise price per share $ 0.22  
Average remaining term in years 2 months 30 days  
Warrants Issued in Connection with Issuance of Series B Preferred Stock to Directors [Member]    
Number of warrants 65,714  
Exercise price per share $ 0.35  
Average remaining term in years 2 months 30 days