Note 10 - Segment Information - Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets	$ 52,051	$ 54,851	[1]
US Segment [Member]
Assets	19,313	22,189
International Segment [Member]
Assets	$ 32,738	$ 32,662

[1] See Note 2 Correction of Prior Period Financial Statements.