Note 9 - Segment Information - Segment Reporting Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
UNITED STATES
Revenue, Net	$ 11,332	$ 10,706	$ 32,268	$ 32,783
Operating income (Loss)	(184)	63	(120)	309
Interest expense	36	25	88	66
Other (income) expense, net
Income before income tax expense	(220)	38	(208)	243
Income tax expense	(306)	(66)	(394)	(74)
Net income (loss) from continuing operations	86	104	186	317
Depreciation and amortization	334	344	1,014	1,004
Capital expenditures	291	213	798	918
International [Member]
Revenue, Net	22,106	17,563	57,513	54,219
Operating income (Loss)	614	166	1,496	784
Interest expense	15	22	23	121
Other (income) expense, net	(78)	(8)	(183)	(68)
Income before income tax expense	677	152	1,656	731
Income tax expense	275	149	594	509
Net income (loss) from continuing operations	402	3	1,062	222
Depreciation and amortization	152	127	445	410
Capital expenditures	151	119	376	320
Revenue, Net	33,438	28,269	89,781	87,002
Operating income (Loss)	430	229	1,376	1,093
Interest expense	51	47	111	187
Other (income) expense, net	(78)	(8)	(183)	(68)
Income before income tax expense	457	190	1,448	974
Income tax expense	(31)	83	200	435
Net income (loss) from continuing operations	488	107	1,248	539
Depreciation and amortization	486	471	1,459	1,414
Capital expenditures	$ 442	$ 332	$ 1,153	$ 1,238