Note 2 - Summary of Significant Accounting Policies - Tenants in Portfolio that Represents the Largest Percentage of Total Revenue (Details)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Curaleaf [Member]
Number of leases	11	11
Percentage of rental revenue	26.00%	42.00%
Cresco Labs [Member]
Number of leases	1	1
Percentage of rental revenue	17.00%	35.00%
Revolutionary Clinics [Member]
Number of leases	1	0
Percentage of rental revenue	14.00%	0.00%
Trulieve [Member]
Number of leases	1	1
Percentage of rental revenue	14.00%	3.00%
Columbia Care [Member]
Number of leases	5	5
Percentage of rental revenue	11.00%	4.00%
Acreage [Member]
Number of leases	3	3
Percentage of rental revenue	8.00%	16.00%