Annual report pursuant to Section 13 and 15(d)

Financing Transactions (Details)

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Financing Transactions (Details) - USD ($)
1 Months Ended 12 Months Ended
Jul. 02, 2021
Jun. 29, 2021
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Financing Transactions [Line items]          
Gross proceeds from sale of securities       $ 156,800,000 $ 56,100,000
Interest rate       4.25%  
Gross proceeds from warrants       $ 57,510,243  
Warrants to purchase common shares       10,490,188  
Gross proceeds from the offering       $ 45,462,626  
Series A Preferred Stock          
Financing Transactions [Line items]          
Issuance of Preferred Stock, net of expenses (in shares)   1,700,000      
Interest rate       7.75%  
Gross proceeds from the offering $ 47,600,000        
ATM          
Financing Transactions [Line items]          
Proceeds from sale of commons stock       $ 51,750,000  
Issuance of Preferred Stock, net of expenses (in shares)       6.0  
June 2024 Notes          
Financing Transactions [Line items]          
Proceeds from sale of unsecured, unsubordinated notes       $ 47,575,000  
Interest rate       7.125%  
December 2024 Notes          
Financing Transactions [Line items]          
Interest rate       6.875%  
December 2025 Notes          
Financing Transactions [Line items]          
Proceeds from sale of unsecured, unsubordinated notes     $ 27,720,000 $ 28,363,750  
Interest rate       7.75%