Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Net Loss per Share - Basic and Diluted (Details)

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Summary of Significant Accounting Policies - Net Loss per Share - Basic and Diluted (Details) - shares
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total Shares of Common Stock Issuable 3,839,093 3,901,681
Common Stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total Shares of Common Stock Issuable 2,726,700 2,875,006
Preferred Stock    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total Shares of Common Stock Issuable 865,500 852,500
Employee Stock Options    
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]    
Total Shares of Common Stock Issuable 246,893 174,175