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Note 6 - Goodwill (Details Textual) (USD $)
12 Months Ended
Sep. 27, 2014
Sep. 28, 2013
Sep. 29, 2012
Dec. 09, 2011
Oct. 01, 2011
Goodwill 4,291,843us-gaap_Goodwill 4,487,546us-gaap_Goodwill $ 4,610,615us-gaap_Goodwill $ 4,443,302us-gaap_Goodwill $ 1,924,131us-gaap_Goodwill
Medical [Member]          
Number of Reporting Units 3us-gaap_NumberOfReportingUnits
/ us-gaap_StatementBusinessSegmentsAxis
= span_MedicalMember
3us-gaap_NumberOfReportingUnits
/ us-gaap_StatementBusinessSegmentsAxis
= span_MedicalMember
     
M.C. Healthcare Products "MCHP" [Member]          
Goodwill 2,367,712us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= span_MCHealthcareProductsMchpMember
    2,530,000us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= span_MCHealthcareProductsMchpMember
 
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount 5.00%us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount
/ us-gaap_BusinessAcquisitionAxis
= span_MCHealthcareProductsMchpMember
       
M.C. Healthcare Products "MCHP" [Member] | Canada Revenue Agency [Member]          
Percentage of Goodwill Deductible Under Canadian Tax Law 75.00%span_PercentageOfGoodwillDeductibleUnderCanadianTaxLaw
/ us-gaap_BusinessAcquisitionAxis
= span_MCHealthcareProductsMchpMember
/ us-gaap_IncomeTaxAuthorityNameAxis
= us-gaap_CanadaRevenueAgencyMember
       
Business Acquisition, Goodwill, Expected Tax Deductible Amount 2,000,000us-gaap_BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount
/ us-gaap_BusinessAcquisitionAxis
= span_MCHealthcareProductsMchpMember
/ us-gaap_IncomeTaxAuthorityNameAxis
= us-gaap_CanadaRevenueAgencyMember