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Debt - Convertible Subordinated Notes Payable, Private Placement Investment Narrative (Details) (USD $)
12 Months Ended 1 Months Ended 12 Months Ended
Jan. 31, 2015
Jan. 31, 2014
Jan. 31, 2013
Aug. 31, 2012
Jan. 31, 2012
Aug. 16, 2012
Nov. 02, 2012
Debt Instrument [Line Items]              
Amortization of debt discount $ 47,552us-gaap_AmortizationOfDebtDiscountPremium $ 4,327us-gaap_AmortizationOfDebtDiscountPremium $ 111,583us-gaap_AmortizationOfDebtDiscountPremium        
Loss upon conversion 0strm_DebtConversionGainLossRecognized 0strm_DebtConversionGainLossRecognized 5,970,002strm_DebtConversionGainLossRecognized        
Private Placement              
Debt Instrument [Line Items]              
Private placement investment           12,000,000us-gaap_EquityMethodInvestments
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_PrivatePlacementMember
 
Private Placement | Convertible Subordinated Notes Payable              
Debt Instrument [Line Items]              
Convertible notes payable           5,699,577us-gaap_ConvertibleNotesPayable
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleSubordinatedDebtMember
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_PrivatePlacementMember
5,699,577us-gaap_ConvertibleNotesPayable
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleSubordinatedDebtMember
/ us-gaap_SubsidiarySaleOfStockAxis
= us-gaap_PrivatePlacementMember
Great Point Partners And Noro Moseley Partners              
Debt Instrument [Line Items]              
Subordinated notes convert into preferred stock           1,583,220strm_DebtInstrumentConvertibleNumberOfPreferredStockIssuable
/ us-gaap_BusinessAcquisitionAxis
= strm_GreatPointPartnersAndNoroMoseleyPartnersMember
 
Debt discount           1,934,000us-gaap_DebtInstrumentUnamortizedDiscount
/ us-gaap_BusinessAcquisitionAxis
= strm_GreatPointPartnersAndNoroMoseleyPartnersMember
 
Amortization of debt discount       112,000us-gaap_AmortizationOfDebtDiscountPremium
/ us-gaap_BusinessAcquisitionAxis
= strm_GreatPointPartnersAndNoroMoseleyPartnersMember
     
Great Point Partners And Noro Moseley Partners | Subordinated Debt              
Debt Instrument [Line Items]              
Convertible notes payable           5,699,577us-gaap_ConvertibleNotesPayable
/ us-gaap_BusinessAcquisitionAxis
= strm_GreatPointPartnersAndNoroMoseleyPartnersMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SubordinatedDebtMember
 
Series A Preferred Stock | Convertible Notes to Preferred Stock              
Debt Instrument [Line Items]              
New issuance of series A convertible preferred stock             1,583,210us-gaap_PreferredStockSharesIssued
/ us-gaap_ConversionOfStockByUniqueDescriptionAxis
= strm_ConvertibleNotesToPreferredStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember
Loss upon conversion         $ 5,913,000strm_DebtConversionGainLossRecognized
/ us-gaap_ConversionOfStockByUniqueDescriptionAxis
= strm_ConvertibleNotesToPreferredStockMember
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesAPreferredStockMember