Quarterly report pursuant to Section 13 or 15(d)

Notes Payable and Line of Credit (Details)

v3.21.2
Notes Payable and Line of Credit (Details)
9 Months Ended
Sep. 30, 2021
USD ($)
$ / shares
Jul. 21, 2021
USD ($)
Sep. 30, 2021
USD ($)
$ / shares
Dec. 31, 2020
USD ($)
Number of unsecured unsubordinated notes     3  
Threshold percentage of taxable income to prohibit distribution     90.00%  
Threshold asset coverage ratio     150.00%  
Period of written notice to redeem notes without premium or penalty     30 days  
Debt Issuance Costs, Net $ 4,132,355   $ 4,132,355 $ 4,866,058
Long-term Line of Credit 30,056,159   30,056,159 $ 28,055,648
Notes        
Aggregate amount outstanding 110,394,395   110,394,395  
Debt Issuance Costs, Net 4,112,355   4,112,355  
June 2024 Notes        
Aggregate amount outstanding $ 23,663,000   $ 23,663,000  
Interest rate 7.125%   7.125%  
Notes issued denomination | $ / shares $ 25.00   $ 25.00  
December 2024 Notes        
Aggregate amount outstanding $ 34,500,000   $ 34,500,000  
Interest rate 6.875%   6.875%  
December 2025 Notes        
Aggregate amount outstanding $ 56,363,750   $ 56,363,750  
Original principal amount $ 28,000,000   $ 28,000,000  
Interest rate 7.75%   7.75%  
Notes issued denomination | $ / shares $ 24.75   $ 24.75  
Credit line from Wells Fargo        
Long-term Line of Credit $ 30,056,159   $ 30,056,159  
Interest rate (as a percent) 1.50%   1.75%  
Master Repurchase agreement        
Interest rate   0.25%    
Threshold asset coverage ratio   150.00%    
Percentage amount of repurchase obligation of unencumbered cash and cash equivalents   2.50%    
Term of Facility to terminate at prior notice   180 days    
Debt Instrument, Repurchased Face Amount   $ 200,000,000    
Minimum        
Term of Facility to terminate at prior notice     1 year  
Minimum | Master Repurchase agreement        
Interest rate   3.00%    
Maximum        
Term of Facility to terminate at prior notice     3 years  
Maximum | Master Repurchase agreement        
Interest rate   4.00%