Note 9 - Debt (Details Textual) - USD ($)	6 Months Ended
Jun. 29, 2025	Dec. 31, 2024
Machinery at Sypris Technologies Facility [Member]
Finance Lease, Liability	$ 1,773,000
Machinery at Sypris Technologies Facility [Member] \| Finance Lease Obligations [Member]
Debt, Weighted Average Interest Rate	8.90%
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	$ 1,080,000
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	$ 1,218,000
Equipment Financing Obligations [Member] \| Minimum [Member]
Debt Instrument, Interest Rate, Effective Percentage	6.90%

The percentage of maximum allowance of the interest due on deferral of payments.

No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Net increase or decrease in the carrying amount of the debt instrument for the period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
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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.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

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- Definition

Amount of interest payable on debt, including, but not limited to, trade payables.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

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