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Note 21 - Segment Information (Detail) - Summary of Long Lived Assets by Physical Location (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Physical Location of Long Lived Assets $ 26,142 $ 28,330 $ 29,739
Taiwan [ Member]
     
Physical Location of Long Lived Assets 11,608 12,158 11,815
China [Member]
     
Physical Location of Long Lived Assets 9,500 11,126 12,991
USA [Member]
     
Physical Location of Long Lived Assets 4,718 4,713 4,599
Singapore [Member]
     
Physical Location of Long Lived Assets 155 210 213
Other Location [Member]
     
Physical Location of Long Lived Assets $ 161 $ 123 $ 121