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Segment Information - Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting Information [Line Items]
Stock compensation	$ 300	$ 200	$ 800	$ 700
Depreciation and amortization	73	77	231	218
Total operating costs and expenses	12,656	10,167	34,747	29,181
Reportable Segment
Segment Reporting Information [Line Items]
Stock compensation	255	205	794	741
Depreciation and amortization	73	77	231	218
Total operating costs and expenses	12,656	10,167	34,747	29,181
Reportable Segment | Asset management and corporate operating expenses
Segment Reporting Information [Line Items]
Operating expenses	6,009	5,770	17,545	16,559
Reportable Segment | Commercial operating expenses
Segment Reporting Information [Line Items]
Operating expenses	1,076	994	3,349	2,965
Reportable Segment | Residential operating expenses
Segment Reporting Information [Line Items]
Operating expenses	1,311	1,209	3,896	3,631
Reportable Segment | ParkX operating expenses
Segment Reporting Information [Line Items]
Operating expenses	$ 3,932	$ 1,912	$ 8,932	$ 5,067

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Total costs of sales and operating expenses for the period.

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+ References

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- Definition

Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 220
-SubTopic 40
-Name Accounting Standards Codification
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