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Note 4 - CSS Sale (Details Textual) - USD ($) |  | 12 Months Ended
--- | --- | ---
Aug. 16, 2016 | Dec. 31, 2017 | Dec. 31, 2016
Payment for Debt Extinguishment or Debt Prepayment Cost |  | $ 0 | $ 1,521,000
Sypris Electronics Assets [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] |  |  |
Disposal Group, Including Discontinued Operation, Consideration | $ 42,000,000 |  |
Escrow Deposit | $ 1,500,000 |  |
Escrow Deposit, Holding Period | 1 year |  |
Disposal Group, Including Discontinued Operation, Revenue |  |  | 11,061,000
Sypris Electronics Assets [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Other Income [Member] |  |  |
Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal |  |  | 31,240,000
Sypris Electronics Assets [Member] | Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Loss on Extinguishment of Debt [Member] |  |  |
Payment for Debt Extinguishment or Debt Prepayment Cost |  |  | $ 1,521,000

X
- Definition The designated amount of time that a deposit can be held in escrow. + References No definition available. + Details
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Namespace Prefix: | sypr_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=64827811&loc=SL51721673-107760 + Details
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Balance Type: | credit
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X
- Definition Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2443-110228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84176398&loc=d3e2941-110230 + Details
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X
- Definition The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.10) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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X
- Definition Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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- Details
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