Subsequent Events (Details) - Subsequent Event	Dec. 11, 2019 USD ($) item	Dec. 17, 2019 USD ($)
ECM Business
Proceeds from sale		$ 16,000,000
Loan and Security Agreement
Revenue deviation (Percentage)	15.00%
Recurring revenue deviation (Percentage)	20.00%
Percenatge of Adjusted EBITDA	30.00%
Debt covenant, minimum EBITDA	$ 150,000
Loan and Security Agreement \| Maximum
Asset Coverage Ratio	1.50%
Loan and Security Agreement \| Minimum
Asset Coverage Ratio	0.75%
Term Loan \| Loan and Security Agreement
Debt instrument, face amount	$ 4,000,000
Interest Rate	6.50%
Number of repayment intsallments \| item	36
Term Loan \| Loan and Security Agreement \| Prime Rate
Basis spread on interest rate (as a percent)	1.50%
Revolving Credit Facility \| Loan and Security Agreement
Revolving line of credit	$ 2,000,000
Interest Rate	6.25%
Advances threshold, percentage of eligible accounts receivable	80.00%
Maturity period	24 months
Revolving Credit Facility \| Loan and Security Agreement \| Prime Rate
Basis spread on interest rate (as a percent)	1.25%

Represents the threshold on advances based on the percentage of eligible accounts receivable.

No definition available.

Name:	strm_DebtInstrumentAdvancesThresholdPercentOfEligibleAccountsReceivable
Namespace Prefix:	strm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the percentage of deviation allowed in recurring revenue over a cumulative year-to-date basis of its revenue projections.

+ References

No definition available.

+ Details

Name:	strm_DebtInstrumentCovenantMaximumPercentageOfRecurringRevenueDeviation
Namespace Prefix:	strm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the percentage of deviation allowed in revenue in three months period from its revenue projections.

+ References

No definition available.

+ Details

Name:	strm_DebtInstrumentCovenantMaximumPercentageOfRevenueDeviationInThreeMonths
Namespace Prefix:	strm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Covenant, Minimum Earnings Before Interest, Taxes, Depreciation and Amortization

+ References

No definition available.

+ Details

Name:	strm_DebtInstrumentCovenantMinimumEarningsBeforeInterestTaxesDepreciationandAmortization
Namespace Prefix:	strm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the percentage of deviation allowed in EBITDA over three months period of iots projected Adjusted EBITDA.

+ References

No definition available.

+ Details

Name:	strm_DebtInstrumentCovenantMinimumPercentageOfEarningsBeforeInterestTaxesDepreciationAndAmortizationDeviation
Namespace Prefix:	strm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Maturity period of debt instrument.

+ References

No definition available.

+ Details

Name:	strm_DebtInstrumentMaturityPeriod
Namespace Prefix:	strm_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the ratio of consolidated adjusted earnings before interest, taxes, depreciation and amortization to interest expense, which is necessary to be maintained under the terms of the senior credit facilities' covenants.

+ References

No definition available.

+ Details

Name:	strm_DebtinstrumentCovenantAssetCoverageRatio
Namespace Prefix:	strm_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of installments for repayment of principal amount of debt.

+ References

No definition available.

+ Details

Name:	strm_LineOfCreditNumberOfRepaymentIntsallments
Namespace Prefix:	strm_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

+ Details

Name:	us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=strm_EcmBusinessMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=strm_LoanAndSecurityAgreementWithBridgeBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_PrimeRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: