Segment Information (Tables)

12 Months Ended

Mar. 31, 2012

Segment Information [Abstract]

Schedule Of Segment Revenue From Product Lines

	YearEnded
	March 31, 2012	March 26, 2011	March 27, 2010
Audio products..................................................................................	$350,743	$264,840	$153,661
Energy products.................................................................................	76,100	104,731	67,328
Total...........................................................................................	$426,843	$369,571	$220,989

Schedule Of Sales By Geographic Location Based On The Sales Office Location

	Year Ended
	March 31, 2012	March 26, 2011	March 27, 2010
United States...................................................................................................	$50,230	$66,701	$47,936
United Kingdom.............................................................................................	23,927	27,398	17,156
China.........................................................................................................................	294,143	205,775	103,992
Hong Kong...............................................................................................................	8,671	9,216	5,611
Japan.........................................................................................................................	15,196	16,902	12,335
South Korea.............................................................................................................	9,781	12,413	10,134
Taiwan...................................................................................................................... ........	10,662	13,073	10,585
Other Asia.................................................................................................................	13,063	16,012	12,381
Other non-U.S. countries........................................................................................	1,170	2,081	859
Total consolidated sales...............................................................................	$426,843	$369,571	$220,989

Schedule Of Property, Plant, And Equipment, Net, By Geographic Location

	Year Ended
	March 31, 2012	March 26, 2011
United States.......................................................................................................................	$66,530	$33,977
United Kingdom.................................................................................................................	20	29
China....................................................................................................................................	158	117
Hong Kong..........................................................................................................................	3	3
Japan....................................................................................................................................	167	377
South Korea........................................................................................................................	6	4
Taiwan.................................................................................................................................	83	44
Other Asia............................................................................................................................	11	12
Total consolidated property, plant and equipment, net......................................	$66,978	$34,563