Annual report [Section 13 and 15(d), not S-K Item 405]

Significant Accounting Policies (Details)

v3.25.0.1
Significant Accounting Policies (Details) - USD ($)
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Significant Accounting Policies [Line Items]          
Payment-in-kind interest $ 166,339 $ 97,401    
Received amount     $ 14,423    
Investment percentage 90.00%        
Dash dividend declared (in Dollars per share) [1] $ 0.075
Non-Control/Non-Affiliate Investments [Member]          
Significant Accounting Policies [Line Items]          
Other income from affiliate investments $ 8,140 $ 17,996 $ 24,060    
Non-Investment Sources [Member]          
Significant Accounting Policies [Line Items]          
Other income from affiliate investments 1,163 24,318 745    
Great Value Storage, LLC [Member]          
Significant Accounting Policies [Line Items]          
Received amount $ 4,631 511,441 $ 200,857    
Accrued Administration Fees [Member] | Non-Investment Sources [Member]          
Significant Accounting Policies [Line Items]          
Other income from affiliate investments   $ 24,000      
Control investments [Member]          
Significant Accounting Policies [Line Items]          
Equity method investment, ownership percentage 25.00%        
Board Representation [Member]          
Significant Accounting Policies [Line Items]          
Equity method investment, ownership percentage 50.00%        
Minimum [Member] | Affiliated Investments [Member]          
Significant Accounting Policies [Line Items]          
Voting securities 5.00%        
Maximum [Member] | Affiliated Investments [Member]          
Significant Accounting Policies [Line Items]          
Voting securities 25.00%        
[1] Financial highlights are based on weighted average shares outstanding.