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Note 4 - Loss of a Key Customer and Management's Recovery Plans (Details) (USD $) | 0 Months Ended | 12 Months Ended
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Aug. 07, 2007 | Apr. 29, 2015 | Dec. 31, 2014
Note 4 - Loss of a Key Customer and Management's Recovery Plans (Details) [Line Items] |  |  |
Litigation Settlement, Amount | $ 89,900,000 us-gaap_LitigationSettlementAmount |  |
Subsequent Event [Member] |  |  |
Note 4 - Loss of a Key Customer and Management's Recovery Plans (Details) [Line Items] |  |  |
Litigation Settlement, Amount |  | $ 505,000 us-gaap_LitigationSettlementAmount / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Dana [Member] | Customer Concentration Risk [Member] | Sales Revenue, Net [Member] |  |  |
Note 4 - Loss of a Key Customer and Management's Recovery Plans (Details) [Line Items] |  |  |
Concentration Risk, Percentage |  |  | 59.00%us-gaap_ConcentrationRiskPercentage1 / us-gaap_ConcentrationRiskByBenchmarkAxis = us-gaap_SalesRevenueNetMember / us-gaap_ConcentrationRiskByTypeAxis = us-gaap_CustomerConcentrationRiskMember / us-gaap_MajorCustomersAxis = sypr_DanaMember

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13537-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6404-108592 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6351-108592 + Details
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