Note 6 Balance Sheet Details (Allowances Movement) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Allowances for Accounts Receivable and for Doubtful Accounts
Balance at Beginning of Year	$ 2,656	$ 2,473	$ 3,478
Additions	8,563	10,064	8,524
Utilization	(8,255)	(9,851)	(9,492)
Translation Adjustments	49	(30)	(37)
Balance at End of Year	$ 3,013	$ 2,656	$ 2,473