Note 6 - Commitments and Contingencies (Details Textual) $ in Millions	6 Months Ended	9 Months Ended
	Sep. 30, 2020 USD ($) Merger	Sep. 30, 2020 USD ($) Merger shares
COVID-19 [Member]
Commitments And Contingencies [Line Items]
Deferred contractual revenue | $	$ 0.4	$ 0.4
Deferred contractual revenue waived | $	$ 0.3
Weighted average payback period of deferred rent		7 months
MedAmerica Properties Inc. [Member]
Commitments And Contingencies [Line Items]
Number of pending mergers | Merger	6	6
MedAmerica Properties Inc. [Member] | Common Stock [Member]
Commitments And Contingencies [Line Items]
Equity interest issued as consideration for the mergers | shares		10,400,779
MedAmerica Properties Inc. [Member] | OP units [Member]
Commitments And Contingencies [Line Items]
Equity interest issued as consideration for the mergers | shares		573,529