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Note 6 - Notes Payable (Details Textual) - USD ($)
$ in Thousands
Feb. 23, 2023
Mar. 31, 2023
Dec. 31, 2022
Long-Term Debt   $ 12,500 $ 0
Revolving Credit Facility [Member]      
Line of Credit Facility, Maximum Borrowing Capacity $ 3,500    
Long-Term Line of Credit   0  
Revolving Credit Facility [Member] | Applicable Rate [Member]      
Debt Instrument, Basis Spread on Variable Rate 2.75%    
Term Loan [Member]      
Debt Instrument, Face Amount $ 12,500    
Debt Instrument, Additional Interest Rate, Default 2.00%    
Fixed Charge Coverage Ratio 1.25    
Funded Debt to EBITDA Ratio 2.50    
Debt Instrument, Covenant, Maximum Purchase Fixed Assets and Leases $ 100,000    
Long-Term Debt   $ 12,500