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Note 3 - Recent Accounting Pronouncements (Details Textual) | 3 Months Ended
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Apr. 03, 2016 USD ($)
Reclassification from Assets to Reduce Long-term Debt [Member] | December 31, 2015 [Member] |
Prior Period Reclassification Adjustment | $ 1,220,000

X
- Definition The amount of a reclassification adjustment made to prior period financial statement amounts. + References No definition available. + Details
Name: | us-gaap_PriorPeriodReclassificationAdjustment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_NewAccountingPronouncementEarlyAdoptionAxis=sypr_ReclassificationFromAssetsToReduceLongTermDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreationDateAxis=sypr_December312015Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |