Note 2 - Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Foreign Currency Spot Rate [Member]
Provision for doubtful accounts	$ 38		$ 238
Balance, beginning of the year	147	$ 593	337
Provision for doubtful accounts	38		$ 238
Amounts written off	(3)	$ (377)
Translation adjustments	(15)	(69)	$ 18
Balance, end of the year	$ 167	$ 147	$ 593