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Note 7 - Long-term Debt (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Mar. 31, 2023 | Dec. 31, 2022 | Dec. 22, 2020
Debt Issuance Costs, Net, Total | $ 630 |  | $ 630 |  |  | $ 840 |
The Credit Agreement [Member] |  |  |  |  |  |  |
Debt Issuance Costs, Net, Total |  |  |  |  |  |  | $ 1,400
Line of Credit Facility, Interest Rate During Period | 8.30% | 5.80% | 8.20% | 4.30% |  |  |
Line of Credit Facility, Interest Rate at Period End | 7.70% |  | 7.70% |  |  |  |
Debt Instrument Quarterly Payment Next Eight Years |  |  |  |  | $ 750 |  |
Debt Instrument, Quarterly Payment, Thereafter |  |  |  |  | $ 1,000 |  |
Percentage of Consolidated Excess Cash Flow |  |  |  |  | 50.00% |  |
Debt Instrument, Current Maturities, Excess Cash Flow Sweep |  |  |  |  |  | 1,100 |
The Credit Agreement [Member] | Secured Overnight Financing Rate (SOFR) [Member] |  |  |  |  |  |  |
Debt Instrument, Interest Rate, State Floor Percentage | 0.50% |  | 0.50% |  |  |  |
The Credit Agreement [Member] | Secured Overnight Financing Rate (SOFR) [Member] | Maximum [Member] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  | 3.25% |  |  |  |
The Credit Agreement [Member] | Base Rate [Member] |  |  |  |  |  |  |
Debt Instrument, Interest Rate, State Floor Percentage | 1.00% |  | 1.00% |  |  |  |
The Credit Agreement [Member] | The ABR Loan [Member] | Minimum [Member] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  | 1.50% |  |  |  |
The Credit Agreement [Member] | The ABR Loan [Member] | Maximum [Member] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  | 3.00% |  |  |  |
The Credit Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity | $ 13,000 |  | $ 13,000 |  |  |  |
Term Loan [Member] |  |  |  |  |  |  |
Long-term Debt, Gross | $ 31,473 |  | $ 31,473 |  |  | $ 34,814 |
The SOFR Loan and Pricing Grid Credit Agreement [Member] | The Credit Agreement [Member] | Secured Overnight Financing Rate (SOFR) [Member] | Minimum [Member] |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  | 2.00% |  |  |  |
The Lenders [Member] | The Credit Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  | 25,000
The Lenders [Member] | The Credit Agreement [Member] | Letter of Credit [Member] |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  | 10,000
The Lenders [Member] | The Credit Agreement [Member] | Swingline Loan Facility [Member] |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  | 10,000
The Lenders [Member] | Term Loan [Member] | The Credit Agreement [Member] |  |  |  |  |  |  |
Long-term Debt, Gross |  |  |  |  |  |  | $ 40,000

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