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Note 9 - Accounts Receivable (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Accounts Receivable, Allowance for Credit Loss, Current | $ 9,000 |  | $ 9,000 |  | $ 10,000
Total Transfer Capacity, Undivided Interests to Investors under Receivables Securitization Facility | 800,000 |  | $ 800,000 |  |
Receivables Securitization Facility, Duration (Year) |  |  | 3 years |  |
Value Outstanding, Undivided Interest Held by Investors Under Receivables Securitization Facility | 0 |  | $ 0 |  | 100,000
Accounts Receivable, Supporting Undivided Investor Held Interest | 1,600,000 |  | 1,600,000 |  |
Interest Expense | 334,000 | $ 315,000 | $ 1,009,000 | $ 938,000 |
Receivables Securitization Facility, Maturity Date |  |  | Jul. 31, 2025 |  |
Asset-Backed Securities, Securitized Loans and Receivables [Member] |  |  |  |  |
Accounts Receivable, from Securitization, Default or Dilution Ratio |  |  | 1.00% |  |
Interest Expense | 4,000 | $ 4,000 | $ 8,000 | $ 8,000 |
Maximum [Member] |  |  |  |  |
Total Transfer Capacity, Undivided Interests to Investors under Receivables Securitization Facility | 800,000 |  | 800,000 |  |
Other Assets [Member] |  |  |  |  |
Accounts Receivable, Allowance for Credit Loss, Noncurrent | $ 71,000 |  | $ 71,000 |  | $ 58,000

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