Note 15 Segment and Geographic Information (Tables)

3 Months Ended

Jun. 30, 2013

Segment Reporting [Abstract]

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

		Three Months Ended June 30,
			2013		2012
		(unaudited)
United States		$	21,558	$	24,922
Europe and the Middle East
	France		1,303		1,573
	Germany		7,653		9,157
	Italy		973		1,026
	Sweden		1,380		1,160
	United Kingdom		5,336		7,124
	Other		7,274		8,064
Asia Pacific
	China		14,674		13,384
	Japan		1,705		1,828
	Korea		1,864		2,243
	Malaysia		703		1,303
	Singapore		2,593		2,645
	Other		1,499		2,579
Rest of the World
	India		1,348		1,802
	Other		1,323		2,047
Total		$	71,186	$	80,857

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

	Three Months Ended June 30,
	2013		2012
		(unaudited)
Power semiconductors	$	51,666	$	59,582
Integrated circuits		13,655		15,599
Systems and RF power semiconductors		5,865		5,676
Total	$	71,186	$	80,857