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Note 9 - Debt (Details Textual) - USD ($) | 9 Months Ended |
--- | --- | ---
Sep. 28, 2025 | Dec. 31, 2024
Machinery at Sypris Technologies Facility [Member] |  |
Finance Lease, Liability | $ 5,075,000 |
Machinery at Sypris Technologies Facility [Member] | Finance Lease Obligations [Member] |  |
Debt, Weighted Average Interest Rate | 12.60% |
Promissory Notes With Maturity On April 1, 2024 And April 1, 2026 [Member] | Gill Family Capital Management [Member] |  |
Subordinated Debt, Ending Balance | $ 12,000,000 | $ 9,000,000
Debt Instrument, Interest Rate, Stated Percentage | 9.25% |
Debt Instrument, Maximum Allowance of Interest Due on Deferred Payments, Percent | 100.00% |
Interest Payable | $ 1,641,000 |
Debt Instrument, Increase (Decrease), Net | $ 3,000,000 |
Promissory Notes With Maturity On April 1, 2024 And April 1, 2026 [Member] | Gill Family Capital Management [Member] | Minimum [Member] |  |
Debt Instrument, Interest Rate, Stated Percentage | 8.00% |
Promissory Notes with Maturity on April 1, 2021 and April 1, 2023 [Member] | Gill Family Capital Management [Member] |  |
Subordinated Debt, Ending Balance |  | $ 9,000,000
Promissory Notes With Maturity on April 1, 2026 [Member] | Gill Family Capital Management [Member] |  |
Subordinated Debt, Ending Balance | $ 2,000,000 |
Promissory Notes With Maturity on April 1, 2027 [Member] | Gill Family Capital Management [Member] |  |
Subordinated Debt, Ending Balance | 2,000,000 |
Promissory Notes with Maturity on April 1 2028 [Member] | Gill Family Capital Management [Member] |  |
Subordinated Debt, Ending Balance | 5,000,000 |
Promissory Notes with Maturity on April 1 2029 [Member] | Gill Family Capital Management [Member] |  |
Subordinated Debt, Ending Balance | $ 3,000,000 |
Promissory Note [Member] | Gill Family Capital Management [Member] | Minimum [Member] |  |
Debt Instrument, Basis Spread on Variable Rate | 5.00% |
Equipment Financing Obligations [Member] |  |
Finance Lease, Liability | $ 1,114,000 |
Equipment Financing Obligations [Member] | Minimum [Member] |  |
Debt Instrument, Interest Rate, Effective Percentage | 6.90% |

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