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LEASES - Lease termination fee (Details) - USD ($)	1 Months Ended		3 Months Ended		9 Months Ended
	Jun. 30, 2025	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
LEASES
Total revenues			$ 23,771,000	$ 22,211,000	$ 72,486,000	$ 66,707,000
Lease termination fees
LEASES
Total revenues					$ 66,000	$ 250,000
Industrial tenant lease buy-out
LEASES
Write-off of unamortized intangible lease liabilities, net of write-off of unbilled rent receivable	$ 24,000
Increase in depreciation and amortization expense attributable to write-off of the balance of unamortized tenant origination costs	68,000
Industrial tenant lease buy-out | Lease termination fees
LEASES
Total revenues	$ 66,000
Consolidated VIE 1 | Restaurant tenant early termination of lease
LEASES
Ownership interest in consolidated joint venture of the company (as a percent)		90.00%
Consolidated VIE 1 | Restaurant tenant early termination of lease | Lease termination fees
LEASES
Total revenues		$ 250,000

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- Definition

The increase in depreciation and amortization expense attributable to the write-off of the balance of unamortized tenant origination costs.

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- Definition

Represents the amount of write-off of unamortized intangible lease liabilities, net of write-off of unbilled rent receivable.

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-Topic 842
-SubTopic 20
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- Definition

Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.

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Percentage of the Variable Interest Entity's (VIE) voting interest owned by (or beneficial interest in) the reporting entity (directly or indirectly).

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