Minimum liquidity required under the restrictive covenant to maintain compliance

No definition available.

Name:	strm_LineofCreditFacilityCovenantTermsMinimumLiquidity
Namespace Prefix:	strm_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

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

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

+ Details

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

- Definition

Amount of the fee for available but unused credit capacity under the credit facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-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

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Fair value of the amount outstanding under the credit facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13476-108611

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

+ Details

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

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

No definition available.

+ Details

Name:	us-gaap_RepaymentsOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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

- Details

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

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	strm_DebtInstrumentCovenantPeriodAxis=strm_DebtInstrumentCovenantPeriodElevenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	strm_DebtInstrumentCovenantPeriodAxis=strm_DebtInstrumentCovenantPeriodTwelveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	strm_DebtInstrumentCovenantPeriodAxis=strm_DebtInstrumentCovenantPeriodThirteenMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Debt - Narrative (Details) - USD ($)			1 Months Ended				3 Months Ended		9 Months Ended
Debt - Narrative (Details) - USD ($)	Apr. 15, 2015	Nov. 21, 2014	Jun. 30, 2017	Dec. 31, 2016	May 31, 2016	Nov. 30, 2014	Jul. 31, 2017	Jan. 31, 2017	Oct. 31, 2017
Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit amount outstanding									$ 0
Commitment fee in connection with the term loan									12,000
Credit Agreement
Debt Instrument [Line Items]
Repayments of debt						$ 7,400,000
Amortization of financing costs	$ 355,000
Credit Agreement \| Senior Notes
Debt Instrument [Line Items]
Revolving line of credit		$ 10,000,000
Repayments of debt			$ 500,000	$ 500,000			$ 500,000	$ 500,000
Payment of principal					$ 1,738,000
Credit Agreement \| Revolving Credit Facility
Debt Instrument [Line Items]
Revolving line of credit		$ 5,000,000
LIBOR \| Credit Agreement \| Minimum
Debt Instrument [Line Items]
Basis spread on interest rate (as a percent)	4.25%	4.25%
LIBOR \| Credit Agreement \| Maximum
Debt Instrument [Line Items]
Basis spread on interest rate (as a percent)	6.25%	5.25%
Base Rate \| Credit Agreement \| Minimum
Debt Instrument [Line Items]
Basis spread on interest rate (as a percent)	3.25%	3.25%
Base Rate \| Credit Agreement \| Maximum
Debt Instrument [Line Items]
Basis spread on interest rate (as a percent)	5.25%	4.25%
Current to January 31, 2018 \| Credit Agreement
Debt Instrument [Line Items]
Minimum liquidity (at least)									5,000,000
February 1, 2018 through January 31, 2019 \| Credit Agreement
Debt Instrument [Line Items]
Minimum liquidity (at least)									4,000,000
February 1, 2019 through maturity \| Credit Agreement
Debt Instrument [Line Items]
Minimum liquidity (at least)									$ 3,000,000