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Note 5 - Accounts Receivable (Details) - Accounts Receivable Detail (USD $)
Dec. 31, 2014
Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Account Receivable Types $ 47,955,000us-gaap_ReceivablesLongTermContractsOrPrograms $ 38,865,000us-gaap_ReceivablesLongTermContractsOrPrograms
Allowance for doubtful accounts (289,000)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent (332,000)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
47,666,000us-gaap_AccountsReceivableNetCurrent 38,533,000us-gaap_AccountsReceivableNetCurrent
Commercial [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Account Receivable Types 47,228,000us-gaap_ReceivablesLongTermContractsOrPrograms
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= sypr_CommercialMember
36,245,000us-gaap_ReceivablesLongTermContractsOrPrograms
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= sypr_CommercialMember
US Government [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Account Receivable Types $ 727,000us-gaap_ReceivablesLongTermContractsOrPrograms
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= sypr_USGovernmentMember
$ 2,620,000us-gaap_ReceivablesLongTermContractsOrPrograms
/ us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis
= sypr_USGovernmentMember