Note 6 - Segment Information (Detail) - Long Lived Assets By Geographic Region (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Long Lived Assets	$ 60,927	$ 48,447
China [Member]
Long Lived Assets	37,859	32,566
United States [Member]
Long Lived Assets	22,868	15,662
Taiwan [Member]
Long Lived Assets	86	98
Japan [Member]
Long Lived Assets	65	70
Other Region [Member]
Long Lived Assets	$ 49	$ 51