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Debt - Term Loans (Narrative) (Details) - USD ($)
9 Months Ended
Jul. 22, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Debt Instrument [Line Items]        
Principal amount advanced   $ 961,000 $ 25,586,000  
Revolving debt   0   $ 1,864,000
Long-term debt   21,982,000   22,986,000
Interest rate swaps:        
Debt Instrument [Line Items]        
Interest rate swap initial aggregate amount $ 25,000,000 $ 25,000,000    
Fixed interest rate (as a percent)   2.95%    
Fair value of interest rate swap   $ 1,131,000   $ 765,000
Huntington Term Loans | Period One        
Debt Instrument [Line Items]        
Periodic payment 104,000      
Huntington Term Loans | Period Two        
Debt Instrument [Line Items]        
Periodic payment 156,000      
Huntington Term Loans | Period Three        
Debt Instrument [Line Items]        
Periodic payment 208,000      
Loans Payable | Huntington Term Loans        
Debt Instrument [Line Items]        
Principal amount 75,000,000      
Debt instrument, commitments $ 25,000,000      
Stated interest rate 0.00%      
Percentage of equity interests   65.00%    
Loans Payable | Huntington Term Loans | Huntington Loans        
Debt Instrument [Line Items]        
Principal amount advanced $ 38,689,000      
Loans Payable | Huntington Term Loans | Federal Funds Rate        
Debt Instrument [Line Items]        
Basis points 50.00%      
Loans Payable | Huntington Term Loans | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate        
Debt Instrument [Line Items]        
Basis points 1.00%      
Loans Payable | Huntington Term Loans | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Minimum        
Debt Instrument [Line Items]        
Basis points 2.80%      
Loans Payable | Huntington Term Loans | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Maximum        
Debt Instrument [Line Items]        
Basis points 3.30%      
Loans Payable | Huntington Loans        
Debt Instrument [Line Items]        
Stated interest rate   7.11%   612.00%
Revolving Credit Facility | Huntington Revolving Loan        
Debt Instrument [Line Items]        
Principal amount $ 25,000,000      
Principal amount advanced 13,689,000      
Debt instrument, amount available   $ 25,000,000    
Revolving Credit Facility | Huntington Capex Loan        
Debt Instrument [Line Items]        
Revolving loan commitment $ 25,000,000      
SOFR Loans | Huntington Term Loans        
Debt Instrument [Line Items]        
Stated interest rate 0.00%      
SOFR Loans | Huntington Term Loans | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Minimum        
Debt Instrument [Line Items]        
Basis points 1.80%      
SOFR Loans | Huntington Term Loans | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Maximum        
Debt Instrument [Line Items]        
Basis points 2.30%      
Term Loan | Huntington Term Loans        
Debt Instrument [Line Items]        
Principal amount $ 25,000,000      
Principal amount advanced $ 25,000,000      
Stated interest rate   475.00%