Note 3 - Real Estate - Additional Information Regarding Total Consideration for Properties (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
2021 Real Estate Acquisitions [Member]
Business Acquisition [Line Items]
Cash paid to prior owners	$ 961
Value of common shares issued	14,892
Prior owner debt and preferred equity paid off at closing	20,649
Settlement of notes payable owed to properties	(700)
Transaction costs	1,323
Cash acquired in acquisition	(1,743)
Total Cost of Acquisition	35,382
2020 Real Estate Acquisitions [Member]
Business Acquisition [Line Items]
Cash paid to prior owners	175
Transaction costs	70
Cash acquired in acquisition	(44)
Total Cost of Acquisition	1,784
2020 Real Estate Acquisitions [Member] | Common Stock [Member]
Business Acquisition [Line Items]
Value of common shares issued	$ 1,583