Note 11 - Customer and Geographic Information (Detail) - Schedule of Revenue from External Customers by Geographical Areas (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenue from external customers by geographic areas	$ 22,531	$ 17,160	$ 43,174	$ 32,177
Europe [Member]
Revenue from external customers by geographic areas	7,654	4,849	16,208	9,271
United States [Member]
Revenue from external customers by geographic areas	7,537	4,051	14,409	7,088
Asia [Member]
Revenue from external customers by geographic areas	$ 7,340	$ 8,260	$ 12,557	$ 15,818