Note 12 - Geographic Data (Detail) - International net revenue detail (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Net revenue (in Dollars)	$ 102,766	$ 73,524
Mexico [Member]
Net revenue (in Dollars)	14,602	4,649
% of consolidated net revenue	14.20%	6.30%
South Africa [Member]
Net revenue (in Dollars)	9,893	4,454
% of consolidated net revenue	9.70%	6.10%
Australia [Member]
Net revenue (in Dollars)	7,205	8,232
% of consolidated net revenue	7.00%	11.20%
Canada [Member]
Net revenue (in Dollars)	6,949	6,467
% of consolidated net revenue	6.80%	8.80%
Japan [Member]
Net revenue (in Dollars)	6,267	4,280
% of consolidated net revenue	6.10%	5.80%
Romania [Member]
Net revenue (in Dollars)	4,421	1,049
% of consolidated net revenue	4.30%	1.40%
China [Member]
Net revenue (in Dollars)	4,210	3,890
% of consolidated net revenue	4.10%	5.30%
All Others [Member]
Net revenue (in Dollars)	6,123	2,694
% of consolidated net revenue	5.90%	3.70%
International [Member]
Net revenue (in Dollars)	$ 59,670	$ 35,715
% of consolidated net revenue	58.10%	48.60%