Note 3 - Revenue Recognition (Details Textual) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jan. 01, 2018	Dec. 31, 2017
Retained Earnings (Accumulated Deficit), Ending Balance	$ 370,615		$ 366,164
Care Management and Consumer Engagement Services [Member] | Transferred over Time [Member] | Accounts payable, Accrued Expenses and Other liabilities [Member]
Revenue, Remaining Performance Obligation, Amount	$ 5,400		$ 6,400
Accounting Standards Update 2014-09 [Member]
Retained Earnings (Accumulated Deficit), Ending Balance		$ 1,400
Minimum [Member]
Contracts With Customers, Term	3 years
Maximum [Member]
Contracts With Customers, Term	5 years