Note 7 - Estimated Liability for Appeals - Activity in Estimated Liability for Appeals (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Balance	$ 21,723
Provision	3,583
Appeals found in providers favor	(1,263)
Balance	24,043
Original RAC Contract [Member]
Balance	19,380
Provision
Appeals found in providers favor
Balance	19,380
RAC 4 Contract [Member]
Balance	20
Provision	530
Appeals found in providers favor	(15)
Balance	535
Commercial Contracts [Member]
Balance	2,323
Provision	3,053
Appeals found in providers favor	(1,248)
Balance	$ 4,128