Note 14 Segment Information (Tables)

3 Months Ended

Jun. 30, 2012

Segment Reporting [Abstract]

Schedule of Revenue from External Customers by Geographic Area [Table Text Block]

		Three Months Ended June 30,
			2012		2011
		(unaudited)
United States		$	24,922	$	27,705
Europe and the Middle East
	France		1,573		2,031
	Germany		9,157		13,416
	United Kingdom		7,124		8,002
	Other		10,250		14,140
Asia Pacific
	China		13,384		18,565
	Japan		1,828		2,088
	Korea		2,243		3,945
	Malaysia		1,303		1,120
	Singapore		2,645		2,484
	Taiwan		1,224		2,232
	Other		1,355		1,369
Rest of the World
	India		1,802		2,829
	Other		2,047		1,852
Total		$	80,857	$	101,778

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

	Three Months Ended June 30,
	2012		2011
		(unaudited)
Power semiconductors	$	59,582	$	76,464
Integrated circuits		15,599		18,111
Systems and RF power semiconductors		5,676		7,203
Total	$	80,857	$	101,778