Note 13 - Revenues - Summary of Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation Of Revenue [Line Items]
Rental income	$ 0	$ 9,255	$ 9,842	$ 18,766
Total Out of Scope of Topic 606 revenue	0	9,255	9,842	18,766
Total revenues	841	10,131	11,447	20,202
Accounting Standards Update Topic 606 [Member]
Disaggregation Of Revenue [Line Items]
Topic 606 Revenue	841	876	1,605	1,436
Leasing Commissions [Member] | Accounting Standards Update Topic 606 [Member] | Point in Time [Member]
Disaggregation Of Revenue [Line Items]
Topic 606 Revenue	438	727	1,079	1,187
Property and Asset Management Fees [Member] | Accounting Standards Update Topic 606 [Member] | Over Time [Member]
Disaggregation Of Revenue [Line Items]
Topic 606 Revenue	278	33	318	69
Sales Commissions [Member] | Accounting Standards Update Topic 606 [Member] | Point in Time [Member]
Disaggregation Of Revenue [Line Items]
Topic 606 Revenue	21	97	87	139
Development Fees [Member] | Accounting Standards Update Topic 606 [Member] | Over Time [Member]
Disaggregation Of Revenue [Line Items]
Topic 606 Revenue	0	0	0	1
Engineering Services [Member] | Accounting Standards Update Topic 606 [Member] | Over Time [Member]
Disaggregation Of Revenue [Line Items]
Topic 606 Revenue	$ 104	$ 19	$ 121	$ 40