Note 13 - Segment Information (Details) - Segment Reporting Information (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Revenue	$ 111,959	$ 98,551
Operating income	2,904	3,919
Interest expense	171	127
Other expense (income), net	(299)	(116)
Net income before income tax expense	3,032	3,908
Income tax expense	(1,118)	459
Net income from continuing operations	4,150	3,449
Depreciation and amortization	1,496	1,157
Capital expenditures	1,299	998
Assets	34,278	29,270
Long lived assets	8,632	5,274
UNITED STATES
Segment Reporting Information [Line Items]
Revenue	44,577	43,097
Operating income	1,086	3,300
Interest expense	62	88
Other expense (income), net	(26)	1
Net income before income tax expense	1,050	3,211
Income tax expense	(1,701)	230
Net income from continuing operations	2,751	2,981
Depreciation and amortization	1,171	914
Capital expenditures	1,064	776
Assets	17,651	14,056
Long lived assets	6,222	3,145
International [Member]
Segment Reporting Information [Line Items]
Revenue	67,382	55,454
Operating income	1,818	619
Interest expense	109	39
Other expense (income), net	(273)	(117)
Net income before income tax expense	1,982	697
Income tax expense	583	229
Net income from continuing operations	1,399	468
Depreciation and amortization	325	243
Capital expenditures	235	222
Assets	16,627	13,604
Long lived assets	2,410	2,129
Discontinued Operations [Member]
Segment Reporting Information [Line Items]
Assets		$ 1,610