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Note 7 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
	May 01, 2019	Jun. 30, 2026	Jun. 30, 2026	Dec. 31, 2025	Dec. 30, 2025	Dec. 24, 2025
Class and Collective Action Complaint [Member]
Loss Contingency, Damages Awarded, Value		$ 209	$ 3,809
Carlos v 250 Livingston Owner LLC and Clipper [Member]
Loss Contingency, Damages Awarded, Value	$ 2,500
Wells Fargo Bank v Borrower and Operating Partnership [Member] | 141 Livingston Street, Brooklyn [Member]
Letters of Credit Outstanding, Amount				$ 10,000	$ 10,000	$ 10,000
Debt Instrument, Fee Amount				$ 2,200	$ 2,200
Lessee, Operating Lease, Term of Contract				5 years	5 years

X

- Definition

Amount of the fee that accompanies borrowing money under the debt instrument.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481544/470-10-50-5

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X

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
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-Publisher FASB
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X

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

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-Topic 944
-SubTopic 605
-Name Accounting Standards Codification
-Section 55
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X

- Definition

Amount of damages awarded to the plaintiff in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
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X

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