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Stockholders' Equity - Warrants (Details) - $ / shares
3 Months Ended 6 Months Ended
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2022
Dec. 31, 2020
Series U Warrants [Member]            
Class of Stock [Line Items]            
Common stock issued (in shares)         3,450,000  
Sale of Stock, Price Per Share $ 5.00       $ 5.00  
Warrants expected term 5 years       5 years  
Representative Warrants [Member]            
Class of Stock [Line Items]            
Number of securities called by warrant or right 75,000       75,000  
Warrant exercise price (in dollars per share) $ 6.25       $ 6.25  
Common Stock [Member]            
Class of Stock [Line Items]            
Common stock issued (in shares) 271,047 6,687,610 1,907,000 2,534,879    
Warrants expected term 5 years       5 years  
Outstanding Warrants [Member] | Series U Warrants [Member]            
Class of Stock [Line Items]            
Number of securities called by warrant or right           2,500
Class of warrant outstanding 2,141,000       2,141,000  
Number of warrants exercised         2,141,000  
Common Class A [Member]            
Class of Stock [Line Items]            
Common stock issued (in shares)         289,000  
Common Class B [Member]            
Class of Stock [Line Items]            
Number of securities called by warrant or right 2,711,000       2,711,000