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Note 15 - Discontinued Operations (Details) (Romanian Disposal Group [Member], USD $)
0 Months Ended
Aug. 31, 2013
Romanian Disposal Group [Member]
 
Note 15 - Discontinued Operations (Details) [Line Items]  
Significant Acquisitions and Disposals, Acquisition Costs or Sale Proceeds $ 348,465us-gaap_SignificantAcquisitionsAndDisposalsAcquisitionCostsOrSaleProceeds
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= sgrp_RomanianDisposalGroupMember
Proceeds from Divestiture of Businesses $ 187,767us-gaap_ProceedsFromDivestitureOfBusinesses
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= sgrp_RomanianDisposalGroupMember
Debt Instrument, Interest Rate, Stated Percentage 6.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= sgrp_RomanianDisposalGroupMember