Note 6 - Accounts Receivable from Urgent and Primary Care (Details) - Urgent and Primary Care [Member] - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Trade Accounts Receivable [Member]
Accounts receivable	$ 3,394	$ 3,236
Other Accounts Receivable [Member]
Accounts receivable	100
Estimated allowance for contractual adjustments and uncollectible amounts	(1,719)	$ (1,738)
Accounts receivable, net	$ 1,775	$ 1,498