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Long-Term Debt (Narrative) (Details) - USD ($)
6 Months Ended
Dec. 19, 2022
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Debt Instrument [Line Items]        
Amortization of deferred costs   $ 18,000 $ 18,000  
Credit facility participation fee and fronting fee percentage   0.25%    
Revolving Credit Facility        
Debt Instrument [Line Items]        
Amortization of deferred costs   $ 266,000    
Line of credit facility, commitment fee percentage 0.25%      
Line of credit facility, remaining borrowing capacity   $ 45,000,000   $ 50,000,000
Revolving Credit Facility | SOFR        
Debt Instrument [Line Items]        
Interest rates under Credit Facility   5.33%    
Minimum | Base Rate        
Debt Instrument [Line Items]        
Debt instrument, basis spread on variable rate   0.00%    
Minimum | SOFR        
Debt Instrument [Line Items]        
Debt instrument, basis spread on variable rate   1.00%    
Minimum | Revolving Credit Facility        
Debt Instrument [Line Items]        
Line of credit facility, commitment fee percentage   0.20%    
Maximum | Base Rate        
Debt Instrument [Line Items]        
Debt instrument, basis spread on variable rate   1.00%    
Maximum | SOFR        
Debt Instrument [Line Items]        
Debt instrument, basis spread on variable rate   2.00%    
Maximum | Revolving Credit Facility        
Debt Instrument [Line Items]        
Line of credit facility, commitment fee percentage   0.30%    
Second Amendment | Revolving Credit Facility        
Debt Instrument [Line Items]        
Amortization of deferred costs   $ 120,000    
Third Amendment | Revolving Credit Facility        
Debt Instrument [Line Items]        
Debt issuance costs   $ 161,000