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Note 9 - Debt (Details Textual) - USD ($)
9 Months Ended
Oct. 02, 2022
Dec. 31, 2021
Finance Lease, Liability, Total $ 3,722,000  
Machinery at Sypris Technologies Facility [Member]    
Finance Lease, Liability, Total $ 3,722,000  
Machinery at Sypris Technologies Facility [Member] | Finance Lease Obligations [Member]    
Debt, Weighted Average Interest Rate 8.50%  
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
Debt Instrument, Interest Rate, Stated Percentage 8.00%  
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, 2022 [Member] | Gill Family Capital Management [Member]    
Subordinated Debt, Ending Balance $ 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] | 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, Total $ 1,235,000  
Long-Term Debt, Total $ 1,235,000  
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%