Note 7 - Commitments and Contingencies (Details Textual) $ in Thousands		3 Months Ended	9 Months Ended		12 Months Ended
	Apr. 15, 2022 Tenant	Apr. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2021 USD ($) Tenant Merger shares	Dec. 31, 2020 USD ($)	Apr. 01, 2020 USD ($)
Commitments and Contingencies [Line Items]
Weighted average remaining lease term					2 years 9 months 18 days
Weighted average discount rate					5.50%
Rent expense relating to operating leases, including straight-line rent					$ 500	$ 500
Annual percentage of changes in rent					4.00%
Deferred rent outstanding			$ 885	$ 885	$ 1,398	$ 885
Gain on extinguishment of debt					$ 1,528
Minimum [Member]
Commitments and Contingencies [Line Items]
Office leases initial terms					3 years
Maximum [Member]
Commitments and Contingencies [Line Items]
Office leases initial terms					7 years
MedAmerica Properties Inc. [Member]
Commitments and Contingencies [Line Items]
Number of pending mergers | Merger					2
MedAmerica Properties Inc. [Member] | Common Stock [Member]
Commitments and Contingencies [Line Items]
Equity interest issued as consideration for the mergers | shares					1,317,055
MedAmerica Properties Inc. [Member] | OP Units [Member]
Commitments and Contingencies [Line Items]
Equity interest issued as consideration for the mergers | shares					573,529
COVID-19 [Member]
Commitments and Contingencies [Line Items]
Deferred contractual revenue							$ 600
Deferred contractual revenue waived			$ 300
Deferred contractual rent		$ 16,000
Deferred rent outstanding					$ 300
Number of tenants | Tenant					4
Gain on extinguishment of debt					$ 1,500
Deferred employer payments				$ 200
COVID-19 [Member] | Subsequent Event [Member]
Commitments and Contingencies [Line Items]
Number of tenants rent deferrals | Tenant	36
Percentage of total tenants	12.00%
Number of tenant on payment plan | Tenant	8