XML 53 R39.htm IDEA: XBRL DOCUMENT v3.22.1
Common Stock - Additional Information (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Aug. 20, 2021
Dec. 31, 2020
Class of Stock [Line Items]      
Common stock sold under agreement $ 342,000    
Class A Common Stock      
Class of Stock [Line Items]      
Number of votes per share of common stock one    
Common stock, shares issued 3,056,757   1,785,880
Common stock, shares outstanding 3,056,757   1,785,880
Common stock, par value $ 0.01   $ 0.01
Class A Common Stock | At Market Issuance Sales Agreement | B. Riley Securities, Inc.,      
Class of Stock [Line Items]      
Common stock, par value   $ 0.01  
Aggregate offering price   $ 12,500,000  
Common stock sold under agreement $ 300,000    
Class B Common Stock      
Class of Stock [Line Items]      
Number of votes per share of common stock 10    
Common stock, shares issued 5,413,197   5,413,197
Common stock, shares outstanding 5,413,197   5,413,197
Common stock, par value $ 0.01   $ 0.01
Class C Common Stock      
Class of Stock [Line Items]      
Number of votes per share of common stock 0    
Common stock, shares issued 0   0
Common stock, shares outstanding 0   0
Common stock, par value $ 0.01   $ 0.01