Note 15 - Real Estate (Details Textual) $ in Thousands						3 Months Ended
	Mar. 27, 2024 USD ($)	Feb. 20, 2024 USD ($) ft²	Dec. 20, 2023 USD ($)	Jun. 30, 2023 USD ($)	Jun. 12, 2023 USD ($) ft²	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property						$ 6,525	$ (0)
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Mercado at Scottsdale Ranch [Member]
Proceeds from Sale of Productive Assets	$ 26,500
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property	$ 6,600
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Spoerlein Commons [Member]
Proceeds from Sale of Productive Assets			$ 7,400
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property			$ 700
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Westchase [Member]
Proceeds from Sale of Productive Assets				$ 7,800
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property				4,600
Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] | Sunridge [Member]
Proceeds from Sale of Productive Assets				6,700
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property				$ 5,000
Garden Oaks Shopping Center [Member]
Payments to Acquire Productive Assets		$ 27,200
Area of Real Estate Property (Square Foot) | ft²		106,858
Asset Acquisition Percent of Property Leased		95.80%
Arcadia Towne Center [Member]
Payments to Acquire Productive Assets					$ 25,500
Area of Real Estate Property (Square Foot) | ft²					69,503
Asset Acquisition Percent of Property Leased					100.00%