Note 12 - Revenues - Summary of Disaggregation of Revenues (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disaggregation Of Revenue [Line Items]
Rental income	$ 38,810	$ 38,990
Sublease income	0	38
Total Out of Scope of Topic 606 revenue	38,810	39,028
Total revenues	41,345	42,169
Accounting Standards Update Topic 606 [Member]
Disaggregation Of Revenue [Line Items]
Topic 606 Revenue	2,535	3,141
Leasing Commissions [Member] | Accounting Standards Update Topic 606 [Member] | Point in Time [Member]
Disaggregation Of Revenue [Line Items]
Topic 606 Revenue	2,168	2,601
Property and Asset Management Fees [Member] | Accounting Standards Update Topic 606 [Member] | Over Time [Member]
Disaggregation Of Revenue [Line Items]
Topic 606 Revenue	137	142
Sales Commissions [Member] | Accounting Standards Update Topic 606 [Member] | Point in Time [Member]
Disaggregation Of Revenue [Line Items]
Topic 606 Revenue	161	296
Development Fees [Member] | Accounting Standards Update Topic 606 [Member] | Over Time [Member]
Disaggregation Of Revenue [Line Items]
Topic 606 Revenue	1	42
Engineering Services [Member] | Accounting Standards Update Topic 606 [Member] | Over Time [Member]
Disaggregation Of Revenue [Line Items]
Topic 606 Revenue	$ 68	$ 60