Note 6 - Goodwill and Intangible Assets (Details Textual) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Zenara [Member] | Restructuring Charges [Member]
Impairment of Intangible Assets, Finite-lived	$ 3,625
Computer Software, Intangible Asset [Member]
Capitalized Internal Software, Amount		$ 2,639	$ 1,332
Amortization of Intangible Assets		865	$ 530	$ 255
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	806	806
Finite-Lived Intangible Assets, Amortization Expense, Year Two	845	845
Finite-Lived Intangible Assets, Amortization Expense, Year Three	845	845
Finite-Lived Intangible Assets, Amortization Expense, Year Four	795	795
Finite-Lived Intangible Assets, Amortization Expense, Year Five	$ 783	$ 783