Note 14 - Segment and Geographic Information (Tables)

3 Months Ended

Jun. 30, 2015

Notes Tables

Revenue from External Customers by Geographic Areas [Table Text Block]

	Three Months Ended June 30,
	2015		2014
	(unaudited)
United States	$	20,133	$	22,504
Europe and the Middle East
France		2,040		1,852
Germany		8,077		8,449
Italy		1,264		1,473
Sweden		705		1,285
United Kingdom		3,220		5,379
Other		6,687		7,787
Asia Pacific
China		21,235		20,402
Japan		3,322		1,801
Korea		6,136		6,439
Malaysia		1,242		1,632
Singapore		3,117		3,157
Thailand		1,043		1,045
Other		1,484		2,113
Rest of the World
India		1,132		1,249
Other		1,210		1,513
Total	$	82,047	$	88,080

Revenue from External Customers by Products and Services [Table Text Block]

	Three Months Ended June 30,
	2015		2014
	(unaudited)
Power semiconductors	$	54,978	$	57,968
Integrated circuits		22,484		23,882
Systems and RF power semiconductors		4,585		6,230
Total	$	82,047	$	88,080