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Note 5 - Long Term Debt (Details Textual)
12 Months Ended
Apr. 09, 2021
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
Long-Term Debt   $ 13,289,000    
Amortization of Debt Issuance Costs   46,000 $ 84,000  
Debt Issuance Costs, Net   164,000 198,000  
The Credit Agreement [Member] | Fifth Third Bank, N.A. [Member]        
Debt Instrument, Term (Year) 5 years      
Line of Credit Facility, Maximum Borrowing Capacity $ 22,000,000      
Number of Debt Instruments 3      
Debt Instrument, Covenant, Minimum Fixed Charge Coverage Ratio 1.25      
Debt Instrument, Covenant, Maximum Funded Debt to EDITDA Ratio 3      
The Credit Agreement, First Loan and Second Loan Facility [Member] | Fifth Third Bank, N.A. [Member]        
Debt Instrument, Face Amount $ 9,500,000      
Long-Term Debt   $ 10,825,000 12,624,000  
Debt Instrument, Interest Rate, Stated Percentage   48.00%    
The Credit Agreement, Second Loan Facility [Member] | Fifth Third Bank, N.A. [Member]        
Debt Instrument, Face Amount $ 5,500,000      
The Credit Agreement, Third Loan Facility [Member] | Fifth Third Bank, N.A. [Member] | Revolving Credit Facility [Member]        
Debt Instrument, Term (Year) 5 years      
Line of Credit Facility, Maximum Borrowing Capacity $ 7,000,000      
Long-Term Line of Credit   $ 2,500,000    
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage       0.25%
The Credit Agreement, Third Loan Facility [Member] | Fifth Third Bank, N.A. [Member] | Revolving Credit Facility [Member] | London Interbank Offered Rate [Member]        
Debt Instrument, Basis Spread on Variable Rate 3.00%      
DFC Loan, Tranche One [Member]        
Debt Instrument, Interest Rate, Stated Percentage   3.67%    
DFC Loan, Tranche Two [Member]        
Debt Instrument, Interest Rate, Stated Percentage   7.49%    
DFC Loan [Member]        
Long-Term Debt   $ 2,464,000 $ 1,041,000  
Debt Issuance Costs, Gross   $ 9,000