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Note 2 - Strategic Actions (Details Textual)
Dec. 31, 2016
USD ($)
ft²
Feb. 26, 2016
USD ($)
Dec. 31, 2015
USD ($)
Leased Facility in Tampa, Florida [Member] | Sypris Electronics [Member]      
Area of Real Estate Property 50,000    
Previously Leased Facility in Tampa, Florida [Member] | Sypris Electronics [Member]      
Area of Real Estate Property 300,000    
Gill Family Capital Management [Member] | Promissory Note [Member]      
Subordinated Debt | $ $ 6,500,000 $ 6,500,000 $ 5,500,000