Note 9 - Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
UNITED STATES
Revenue, Net	$ 11,184	$ 11,105	$ 20,936	$ 22,077
Operating income	362	317	64	244
Interest expense	27	20	52	41
Other (income) expense, net
Income before income tax expense	335	297	12	203
Income tax expense	123	(9)	(88)	(9)
Net income (loss) from continuing operations	212	306	100	212
Depreciation and amortization	336	342	679	661
Capital expenditures	262	211	506	705
International [Member]
Revenue, Net	18,548	18,362	35,407	36,656
Operating income	418	196	883	618
Interest expense	4	62	8	99
Other (income) expense, net	(80)	(33)	(105)	(60)
Income before income tax expense	494	167	980	579
Income tax expense	103	209	319	360
Net income (loss) from continuing operations	391	(42)	661	219
Depreciation and amortization	148	134	293	283
Capital expenditures	99	111	226	200
Revenue, Net	29,732	29,467	56,343	58,733
Operating income	780	513	947	862
Interest expense	31	82	60	140
Other (income) expense, net	(80)	(33)	(105)	(60)
Income before income tax expense	829	464	992	782
Income tax expense	226	200	231	351
Net income (loss) from continuing operations	603	264	761	431
Depreciation and amortization	484	476	972	944
Capital expenditures	$ 361	$ 322	$ 732	$ 905