Note 1 - Summary of Significant Accounting Policies - Goodwill Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Balance	$ 20,995
Balance	20,995	$ 20,995
Inpatient Services Segment [Member]
Balance	3,395	0	$ 0
Additions	0	3,395	0
Balance	3,395	3,395	0
Homecare Services Segment [Member]
Balance	17,600	17,600	17,600
Additions	0	0	0
Balance	17,600	17,600	17,600
Other Segments [Member]
Balance	20,995	17,600	17,600
Additions	0	3,395	0
Balance	$ 20,995	$ 20,995	$ 17,600