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Long-Term Debt (Narrative) (Details) - USD ($)
3 Months Ended
Dec. 19, 2022
Mar. 31, 2024
Dec. 31, 2023
Debt Instrument [Line Items]      
Long-term debt   $ 0 $ 0
Debt issuance costs capitalized   $ 266,000  
Credit facility participation fee and fronting fee percentage   0.25%  
Revolving Credit Facility      
Debt Instrument [Line Items]      
Line of credit facility, commitment fee percentage 0.25%    
Line of credit facility, remaining borrowing capacity   $ 50,000,000 $ 50,000,000
Revolving Credit Facility | SOFR      
Debt Instrument [Line Items]      
Interest rates under Credit Facility   5.34%  
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]      
Debt issuance costs   $ 120,000  
Revolving Credit Facility | Third Amendment      
Debt Instrument [Line Items]      
Debt issuance costs   $ 161,000