Note 5 - Investment in Joint Venture (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) a	Dec. 31, 2022 USD ($)
Equity Method Investments	$ 1,608	$ 0
Gain From Derecognition of Financial Asset	$ 1,626	$ 0
Joint Venture Agreement With BRE2 LLC [Member]
Area of Land (Acre) | a	30
Contribution of Property	$ 1,600
Equity Method Investments	1,600
Gain From Derecognition of Financial Asset	$ 1,600