Note 6 - Segment Information (Detail) - Long Lived Assets By Geographic Region (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Long Lived Assets	$ 60,190	$ 48,447
China [Member]
Long Lived Assets	38,170	32,566
United States [Member]
Long Lived Assets	21,835	15,662
Taiwan [Member]
Long Lived Assets	73	98
Japan [Member]
Long Lived Assets	68	70
Other Region [Member]
Long Lived Assets	$ 44	$ 51