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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%

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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.

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

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