Aggregate limited partnership units issued for asset acquisition.

No definition available.

Name:	sret_AggregateUnitsOfLimitedPartnershipIssuedForAcquisitionUnits
Namespace Prefix:	sret_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of properties acquired.

+ References

No definition available.

+ Details

Name:	sret_NumberOfPropertiesAcquired
Namespace Prefix:	sret_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount per share or per unit of equity securities issued. Represents the first price.

+ References

No definition available.

+ Details

Name:	sret_SharesIssuedPricePerShareOne
Namespace Prefix:	sret_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Units In Property Acquired

+ References

No definition available.

+ Details

Name:	sret_UnitsInPropertyAcquired
Namespace Prefix:	sret_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 30
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123362884&loc=d3e9215-128498

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 55
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6829253&loc=SL6831962-166255

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=123385561&loc=d3e9135-128495

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 30
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=123362884&loc=d3e9212-128498

+ Details

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

- Definition

Amount of acquirer's equity interest issued and issuable as part of consideration transferred in asset acquisition.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 30
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123362884&loc=d3e9215-128498

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 30
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=123362884&loc=d3e9212-128498

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=123385561&loc=d3e9135-128495

+ Details

Name:	us-gaap_AssetAcquisitionConsiderationTransferredEquityInterestIssuedAndIssuable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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_AssetAcquisitionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_AssetAcquisitionAxis=sret_DeerParkHutchinsonMnMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AssetAcquisitionAxis=sret_DesotaEstatesGrandForksNdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AssetAcquisitionAxis=sret_DesotaTownhomesGrandForksNdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AssetAcquisitionAxis=sret_DesotaApartmentsEastGrandForksMnMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AssetAcquisitionAxis=sret_DiamondBendMandanNdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AssetAcquisitionAxis=sret_NewgateApartmentsBismarckNdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Acquisitions - Purchases, Current Year (Details) $ / shares in Units, $ in Thousands					9 Months Ended
	Sep. 13, 2022 USD ($) item	Jun. 10, 2022 USD ($) item	May 31, 2022 USD ($) item	Feb. 28, 2022 USD ($) item	Sep. 30, 2022 USD ($) item $ / shares shares
Acquisitions
Acquisition price					$ 38,755
Number of acquisitions \| item					6
Aggregate number of limited partnership units issued for acquisition \| shares					539,000
Price per limited partnership unit issued for acquisition, price one \| $ / shares					$ 23.00
Aggregate value of limited partnership units issued for acquisition					$ 12,390
Deer Park, Hutchinson, MN
Acquisitions
Units acquired \| item				138
Acquisition price				$ 15,073
Desota Estates, Grand Forks, ND
Acquisitions
Units acquired \| item			68
Acquisition price			$ 5,863
Desota Townhomes, Grand Forks, ND
Acquisitions
Units acquired \| item			24
Acquisition price			$ 3,226
Desota Apartments, East Grand Forks, MN
Acquisitions
Units acquired \| item			24
Acquisition price			$ 1,230
Diamond Bend, Mandan, ND
Acquisitions
Units acquired \| item		78
Acquisition price		$ 10,919
Newgate Apartments, Bismarck, ND
Acquisitions
Units acquired \| item	46
Acquisition price	$ 2,444