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Income Taxes (Details) (USD $)
 3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Components of loss before income taxes [Abstract]                      
United States                 $ (3,412,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic $ 10,513,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic $ (5,975,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic
Foreign                 556,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign 608,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign 630,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign
Total                 (2,856,000)sprt_IncomeFromOperationsBeforeTaxes 11,121,000sprt_IncomeFromOperationsBeforeTaxes (5,345,000)sprt_IncomeFromOperationsBeforeTaxes
Gain from discontinued operations, before income taxes                 0us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax 0us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax 18,000us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax
Gain (loss) from continuing operations, before income taxes                 (2,856,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest 11,121,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest (5,327,000)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Current [Abstract]                      
Federal                 0us-gaap_CurrentFederalTaxExpenseBenefit 0us-gaap_CurrentFederalTaxExpenseBenefit 0us-gaap_CurrentFederalTaxExpenseBenefit
State                 34,000us-gaap_CurrentStateAndLocalTaxExpenseBenefit 132,000us-gaap_CurrentStateAndLocalTaxExpenseBenefit 54,000us-gaap_CurrentStateAndLocalTaxExpenseBenefit
Foreign                 380,000us-gaap_CurrentForeignTaxExpenseBenefit 221,000us-gaap_CurrentForeignTaxExpenseBenefit 94,000us-gaap_CurrentForeignTaxExpenseBenefit
Total current                 414,000us-gaap_CurrentIncomeTaxExpenseBenefit 353,000us-gaap_CurrentIncomeTaxExpenseBenefit 148,000us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred [Abstract]                      
Federal                 265,000us-gaap_DeferredFederalIncomeTaxExpenseBenefit 265,000us-gaap_DeferredFederalIncomeTaxExpenseBenefit 266,000us-gaap_DeferredFederalIncomeTaxExpenseBenefit
State                 19,000us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit 24,000us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit 28,000us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit
Foreign                 42,000us-gaap_DeferredForeignIncomeTaxExpenseBenefit 130,000us-gaap_DeferredForeignIncomeTaxExpenseBenefit (234,000)us-gaap_DeferredForeignIncomeTaxExpenseBenefit
Total Deferred                 326,000us-gaap_DeferredIncomeTaxExpenseBenefit 419,000us-gaap_DeferredIncomeTaxExpenseBenefit 60,000us-gaap_DeferredIncomeTaxExpenseBenefit
Total provision for income tax 355,000us-gaap_IncomeTaxExpenseBenefit 128,000us-gaap_IncomeTaxExpenseBenefit 132,000us-gaap_IncomeTaxExpenseBenefit 125,000us-gaap_IncomeTaxExpenseBenefit 326,000us-gaap_IncomeTaxExpenseBenefit 121,000us-gaap_IncomeTaxExpenseBenefit 176,000us-gaap_IncomeTaxExpenseBenefit 149,000us-gaap_IncomeTaxExpenseBenefit 740,000us-gaap_IncomeTaxExpenseBenefit 772,000us-gaap_IncomeTaxExpenseBenefit 208,000us-gaap_IncomeTaxExpenseBenefit
Reconciliation of federal statutory income tax rate to effective income tax rate [Abstract]                      
Provision at Federal statutory rate                 (1,000,000)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate 3,900,000us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate (1,865,000)us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate
State taxes                 53,000us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes 156,000us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes 82,000us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes
Permanent differences/other                 633,000us-gaap_IncomeTaxReconciliationOtherAdjustments 520,000us-gaap_IncomeTaxReconciliationOtherAdjustments 375,000us-gaap_IncomeTaxReconciliationOtherAdjustments
Stock-based compensation                 2,311,000us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost 1,113,000us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost 178,000us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost
Federal valuation allowance (used) provided                 (1,257,000)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance (4,917,000)us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance 1,438,000us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance
Total provision for income tax 355,000us-gaap_IncomeTaxExpenseBenefit 128,000us-gaap_IncomeTaxExpenseBenefit 132,000us-gaap_IncomeTaxExpenseBenefit 125,000us-gaap_IncomeTaxExpenseBenefit 326,000us-gaap_IncomeTaxExpenseBenefit 121,000us-gaap_IncomeTaxExpenseBenefit 176,000us-gaap_IncomeTaxExpenseBenefit 149,000us-gaap_IncomeTaxExpenseBenefit 740,000us-gaap_IncomeTaxExpenseBenefit 772,000us-gaap_IncomeTaxExpenseBenefit 208,000us-gaap_IncomeTaxExpenseBenefit
Deferred tax Assets [Abstract]                      
Fixed assets 165,000us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment       187,000us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment       165,000us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment 187,000us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment  
Deferred revenue 19,000us-gaap_DeferredTaxAssetsDeferredIncome       14,000us-gaap_DeferredTaxAssetsDeferredIncome       19,000us-gaap_DeferredTaxAssetsDeferredIncome 14,000us-gaap_DeferredTaxAssetsDeferredIncome  
Accruals and reserves 649,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities       498,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities       649,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities 498,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities  
Stock options 1,663,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost       3,570,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost       1,663,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost 3,570,000us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost  
Net operating loss carryforwards 42,854,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards       43,562,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards       42,854,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards 43,562,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwards  
Federal and state credits 3,327,000sprt_DeferredTaxAssetsTaxCreditCarryforwardsFederalAndStateTaxCredits       3,169,000sprt_DeferredTaxAssetsTaxCreditCarryforwardsFederalAndStateTaxCredits       3,327,000sprt_DeferredTaxAssetsTaxCreditCarryforwardsFederalAndStateTaxCredits 3,169,000sprt_DeferredTaxAssetsTaxCreditCarryforwardsFederalAndStateTaxCredits  
Foreign credits 185,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsForeign       197,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsForeign       185,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsForeign 197,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsForeign  
Intangible assets 1,208,000us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets       986,000us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets       1,208,000us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets 986,000us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets  
Gross deferred tax assets 50,070,000us-gaap_DeferredTaxAssetsGross       52,183,000us-gaap_DeferredTaxAssetsGross       50,070,000us-gaap_DeferredTaxAssetsGross 52,183,000us-gaap_DeferredTaxAssetsGross  
Valuation allowance (49,679,000)us-gaap_DeferredTaxAssetsValuationAllowance       (51,726,000)us-gaap_DeferredTaxAssetsValuationAllowance       (49,679,000)us-gaap_DeferredTaxAssetsValuationAllowance (51,726,000)us-gaap_DeferredTaxAssetsValuationAllowance  
Total deferred tax assets 391,000us-gaap_DeferredTaxAssetsNet       457,000us-gaap_DeferredTaxAssetsNet       391,000us-gaap_DeferredTaxAssetsNet 457,000us-gaap_DeferredTaxAssetsNet  
Deferred tax liabilities [Abstract]                      
Intangible assets (1,302,000)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets       (1,016,000)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets       (1,302,000)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets (1,016,000)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets  
Total deferred tax liabilities (1,302,000)us-gaap_DeferredIncomeTaxLiabilities       (1,016,000)us-gaap_DeferredIncomeTaxLiabilities       (1,302,000)us-gaap_DeferredIncomeTaxLiabilities (1,016,000)us-gaap_DeferredIncomeTaxLiabilities  
Net deferred tax assets (liabilities) (911,000)us-gaap_DeferredTaxAssetsLiabilitiesNet       (559,000)us-gaap_DeferredTaxAssetsLiabilitiesNet       (911,000)us-gaap_DeferredTaxAssetsLiabilitiesNet (559,000)us-gaap_DeferredTaxAssetsLiabilitiesNet  
Valuation Allowance [Abstract]                      
Increase (decrease) in net valuation allowance                 (2,000,000)us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount (5,700,000)us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount  
Valuation allowance on stock option exercises 4,800,000us-gaap_OperatingLossCarryforwardsValuationAllowance               4,800,000us-gaap_OperatingLossCarryforwardsValuationAllowance    
Reconciliation of Unrecognized Tax Benefits [Roll Forward]                      
Balance at beginning of year       2,502,000us-gaap_UnrecognizedTaxBenefits       3,637,000us-gaap_UnrecognizedTaxBenefits 2,502,000us-gaap_UnrecognizedTaxBenefits 3,637,000us-gaap_UnrecognizedTaxBenefits 3,210,000us-gaap_UnrecognizedTaxBenefits
Increase related to prior year tax positions                 2,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions 98,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions 507,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions
Decrease related to prior year tax positions                 (89,000)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions (1,349,000)us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions 0us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions
Increase related to current year tax positions                 181,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions 162,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions 18,000us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions
Settlements with tax authorities                 0us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities 0us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities 0us-gaap_UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities
Decrease related to lapse of statute of limitations                 (136,000)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations (46,000)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations (98,000)us-gaap_UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations
Balance at end of year 2,460,000us-gaap_UnrecognizedTaxBenefits       2,502,000us-gaap_UnrecognizedTaxBenefits       2,460,000us-gaap_UnrecognizedTaxBenefits 2,502,000us-gaap_UnrecognizedTaxBenefits 3,637,000us-gaap_UnrecognizedTaxBenefits
Unrecognized tax benefits that would impact effective tax rate 500,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate       500,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate       500,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate 500,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate  
Cumulative undistributed earnings of foreign subsidiaries 1,500,000us-gaap_UndistributedEarningsOfForeignSubsidiaries               1,500,000us-gaap_UndistributedEarningsOfForeignSubsidiaries    
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued [Abstract]                      
Income tax penalties and interest accrued 176,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued       111,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued       176,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued 111,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued 80,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued
Recognized tax benefits where significant change is reasonably possible in next 12 months 41,000sprt_SignificantChangeInRecognizedTaxBenefitsIsReasonablyPossibleAmountOfRecordedBenefit               41,000sprt_SignificantChangeInRecognizedTaxBenefitsIsReasonablyPossibleAmountOfRecordedBenefit    
Reserve related to India transfer pricing 269,000sprt_ReserveRelatedToForeignTransferPricing                    
Federal [Member]                      
Operating Loss Carryforwards [Line Items]                      
Operating loss carryforwards 120,000,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_InternalRevenueServiceIRSMember		               120,000,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_InternalRevenueServiceIRSMember		    
Federal [Member] | Research and Development [Member]                      
Tax Credit Carryforward [Line Items]                      
Tax credit carryforward 2,800,000us-gaap_TaxCreditCarryforwardAmount
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_InternalRevenueServiceIRSMember
/ us-gaap_TaxCreditCarryforwardAxis
= us-gaap_ResearchMember		               2,800,000us-gaap_TaxCreditCarryforwardAmount
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_InternalRevenueServiceIRSMember
/ us-gaap_TaxCreditCarryforwardAxis
= us-gaap_ResearchMember		    
State [Member]                      
Operating Loss Carryforwards [Line Items]                      
Operating loss carryforwards 64,500,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember		               64,500,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember		    
State [Member] | Research and Development [Member]                      
Tax Credit Carryforward [Line Items]                      
Tax credit carryforward $ 2,400,000us-gaap_TaxCreditCarryforwardAmount
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
/ us-gaap_TaxCreditCarryforwardAxis
= us-gaap_ResearchMember		               $ 2,400,000us-gaap_TaxCreditCarryforwardAmount
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
/ us-gaap_TaxCreditCarryforwardAxis
= us-gaap_ResearchMember