Quarterly report pursuant to Section 13 or 15(d)

Margin Loan - Narrative (Details)

v3.23.1
Margin Loan - Narrative (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Line of Credit Facility [Line Items]      
Margin loan balance $ 48,894,000   $ 60,810,000
Margin Loan      
Line of Credit Facility [Line Items]      
Proceeds from lines of credit 3,700,000    
Repayments of lines of credit $ 16,300,000    
Debt, weighted average interest rate 0.89%   1.66%
Interest expense, debt $ 700,000 $ 21,846  
Margin loan balance 48,900,000   $ 60,800,000
Margin Loan | Median      
Line of Credit Facility [Line Items]      
Proceeds from lines of credit $ 46,200,000   $ 27,100,000
Margin Loan | Federal Funds Rate      
Line of Credit Facility [Line Items]      
Debt instrument, basis spread on variable rate 0.65%