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Note 9 - Debt (Details Textual) - USD ($) |  | 3 Months Ended |
--- | --- | --- | ---
Apr. 03, 2023 | Apr. 02, 2023 | Dec. 31, 2022
Machinery at Sypris Technologies Facility [Member] |  |  |
Finance Lease, Liability |  | $ 3,579,000,000,000 |
Machinery at Sypris Technologies Facility [Member] | Finance Lease Obligations [Member] |  |  |
Debt, Weighted Average Interest Rate |  | 8.60% |
Promissory Notes with Maturity on April 1, 2021 and April 1, 2023 [Member] | Gill Family Capital Management [Member] |  |  |
Subordinated Debt, Ending Balance |  | $ 6,500,000 | $ 6,500,000
Debt Instrument, Interest Rate, Stated Percentage |  | 8.80% |
Debt Instrument, Allowance for Payment Deferral Period (Month) |  | 18 months |
Debt Instrument, Maximum Allowance of Interest Due on Deferred Payments, Percent |  | 60.00% |
Promissory Notes with Maturity on April 1, 2021 and April 1, 2023 [Member] | Gill Family Capital Management [Member] | Minimum [Member] |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 8.00% |
Promissory Note with Maturity on April 1, 2023 [Member] | Gill Family Capital Management [Member] |  |  |
Subordinated Debt, Ending Balance |  | $ 2,500,000 |
Repayments of Subordinated Debt | $ 2,500,000 |  |
Promissory Notes with Maturity on April 1, 2024 [Member] | Gill Family Capital Management [Member] |  |  |
Subordinated Debt, Ending Balance |  | $ 2,000,000 |
Promissory Note [Member] | Gill Family Capital Management [Member] | Minimum [Member] | Five-year Treasury Note Average During Preceding 90-day Period [Member] |  |  |
Debt Instrument, Basis Spread on Variable Rate |  | 5.00% |
Equipment Financing Obligations [Member] |  |  |
Finance Lease, Liability |  | $ 1,830,000 |
Long-Term Debt |  | $ 1,830,000,000,000 |
Equipment Financing Obligations [Member] | Minimum [Member] |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  | 4.40% |
Equipment Financing Obligations [Member] | Maximum [Member] |  |  |
Debt Instrument, Interest Rate, Effective Percentage |  | 8.10% |

X
- Definition Period of time allowed for deferral of payment of the debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 835 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482900/835-30-50-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482925/835-30-45-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-6 + Details
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