Note 12 - Geographic Data (Tables)

9 Months Ended

Sep. 30, 2013

Segment Reporting [Abstract]

Reconciliation of Revenue from Segments to Consolidated [Table Text Block]

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
Net revenues:
United States	$	11,327	$	11,016	$	32,390	$	31,182
International		16,426		14,341		47,762		37,802
Total net revenues	$	27,753	$	25,357	$	80,152	$	68,984

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

	Three Months Ended September 30,								Nine Months Ended September 30,
	2013				2012				2013				2012
Net revenues international:			% of consolidated net revenue				% of consolidated net revenue				% of consolidated net revenue				% of consolidated net revenue
Mexico	$	4,002		14.4%	$	4,095		16.1%	$	11,277		14.1%	$	10,432		15.1%
South Africa		3,873		14.0		1,823		7.2		11,809		14.7		5,590		8.1
Japan		2,079		7.5		1,733		6.8		4,680		5.8		4,602		6.7
China		1,911		6.9		1,458		5.7		4,956		6.2		2,999		4.3
Canada		1,545		5.6		1,660		6.5		4,389		5.5		4,864		7.1
Australia		1,283		4.6		2,208		8.7		5,046		6.3		5,056		7.3
India		1,203		4.3		467		1.8		3,318		4.1		1,404		2.0
All others		530		1.9		897		3.5		2,287		2.9		2,855		4.1
Total international revenues	$	16,426		59.2%	$	14,341		56.3%	$	47,762		59.6%	$	37,802		54.7%

Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]

	Three Months Ended September 30,				Nine Months Ended September 30,
	2013		2012		2013		2012
Operating income:
United States	$	99	$	729	$	383	$	2,049
International		291		177		520		3
Total operating income	$	390	$	906	$	903	$	2,052

Reconciliation of Long Lived Assets from Segments to Consolidated [Table TextBlock}

	September 30, 2013		December 31, 2012
Long lived assets:
United States	$	4,434	$	3,145
International		2,458		2,129
Total long lived assets	$	6,892	$	5,274