Note 3 - Real Estate - Relative Fair Value of Assets Acquired and Liabilities Assumed (Details) $ in Thousands	Dec. 31, 2021 USD ($)
2021 Real Estate Acquisitions [Member]
Business Acquisition [Line Items]
Land	$ 10,884
Building	33,889
Building and site improvements	10,001
Intangible lease assets	14,816
Total real estate assets acquired	69,590
Other assets	3,977
Total assets acquired	73,567
Accounts payable and accrued expenses	(4,674)
Intangible lease liabilities	(1,502)
Deferred tax liabilities	(495)
Assumed mortgage indebtedness	(31,514)
Total liabilities assumed	(38,185)
Assets acquired net of liabilities assumed	35,382
2020 Real Estate Acquisitions [Member]
Business Acquisition [Line Items]
Land	1,826
Building	2,095
Building and site improvements	592
Intangible lease assets	496
Total real estate assets acquired	5,009
Other assets	40
Total assets acquired	5,049
Accounts payable and accrued expenses	(523)
Deferred tax liabilities	(224)
Assumed mortgage and other indebtedness	(2,518)
Total liabilities assumed	(3,265)
Assets acquired net of liabilities assumed	$ 1,784