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LEASES - Lessor Accounting (Details)	Dec. 31, 2023 tenant
Leases [Abstract]
Number of tenants under lease	2

X

- Definition

Lessor, Number Of Tenants

+ References

No definition available.

+ Details

Name:	brt_LessorNumberOfTenants
Namespace Prefix:	brt_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

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