Note 3 - Real Estate - Relative Fair Value of Assets Acquired and Liabilities Assumed (Details) - 2021 Real Estate Acquisitions [Member] $ in Thousands	Jun. 30, 2021 USD ($)
Business Acquisition [Line Items]
Land	$ 7,707
Building	15,162
Building and site improvements	6,381
Intangible lease assets	9,018
Total real estate assets acquired	38,268
Other assets	3,074
Deferred tax assets	1,117
Total assets acquired	42,459
Accounts payable and accrued expenses	(1,813)
Intangible lease liabilities	(983)
Assumed mortgage indebtedness	(31,514)
Total liabilities assumed	(34,310)
Assets acquired net of liabilities assumed	$ 8,149