Interest percentage in exchange of capital contribution.

No definition available.

Name:	brst_InterestPercentageInExchangeOfCapitalContribution
Namespace Prefix:	brst_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Sales price of real estate held for sale.

+ References

No definition available.

+ Details

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Namespace Prefix:	brst_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Transaction costs on disposition of real estate.

+ References

No definition available.

+ Details

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Namespace Prefix:	brst_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479907/805-20-50-5

+ Details

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

- Definition

Amount of difference between the carrying amount and the sales price of real estate properties sold as part of discontinued operations.

+ References

No definition available.

+ Details

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

- Definition

The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 28
-Subparagraph (b)
-SubTopic 10
-Topic 230
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-28

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 100
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482078/820-10-55-100

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482130/360-10-45-15

+ Details

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

- Definition

The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 15
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482740/230-10-45-15

+ Details

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

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=brst_SpotswoodValleySquareShoppingCenterMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=brst_DekalbPlazaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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

- Details

Name:	us-gaap_DebtInstrumentAxis=brst_BasisTermLoanMember
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Note 3 - Real Estate - (Details Textual) - USD ($) $ in Thousands			6 Months Ended	12 Months Ended
	Jul. 20, 2023	Jun. 30, 2023	Jun. 30, 2023	Dec. 31, 2024	Dec. 31, 2023
Business Acquisition [Line Items]
Impairment of real estate assets held for sale				$ 0	$ 2,353
Spotswood Valley Square Shopping Center [Member]
Business Acquisition [Line Items]
Sales price		$ 23,000
Gain (loss) on sales of real estate		11,600
Repayments of secured debt			$ 11,800
Transaction costs		$ 600
Dekalb Plaza [Member]
Business Acquisition [Line Items]
Impairment of real estate assets held for sale					$ 2,400
Sales price	$ 23,100
Gain (loss) on sales of real estate	(100)
Transaction costs	700
Lamont Street Preferred Interest [Member]
Business Acquisition [Line Items]
Repayments of secured debt			$ 2,300
Lamont Street Preferred Interest [Member] \| Spotswood Valley Square Shopping Center [Member]
Business Acquisition [Line Items]
Interest percentage in exchange of capital contribution		1.00%
Basis Term Loan [Member] \| Dekalb Plaza [Member]
Business Acquisition [Line Items]
Repayments of secured debt	$ 17,400