Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Mar. 31, 2011
ASSETS
Cash and cash equivalents	$ 50,231	$ 84,402	[1]
Short-term investments-available-for-sale	67,046	83,649	[1]
Accounts receivable, net	30,828	19,997	[1]
Inventories	17,569	26,561	[1]
Other current assets	21,917	16,784	[1]
Total current assets	187,591	231,393	[1]
Property and equipment, net	36,097	32,023	[1]
Goodwill	13,183	13,183	[1]
Purchased intangibles	17,963	23,388	[1]
Other assets	12,237	8,670	[1]
Total assets	267,071	308,657	[1]
LIABILITIES AND STOCKHOLDERS' EQUITY
Accounts payable	17,643	24,431	[1]
Accrued payroll and related expenses	8,069	7,261	[1]
Other accrued liabilities	13,123	12,748	[1]
Deferred revenue	1,942	2,407	[1]
Total current liabilities	40,777	46,847	[1]
Commitments and contingencies (Note 8)			[1]
Stockholders' equity:
Preferred stock, $0.01 par value: Authorized shares - 2,000, none issued and outstanding			[1]
Common stock, $0.01 par value: Authorized shares - 375,000 at December 31, 2011 and March 31, 2011 Issued and outstanding shares - 61,169 at December 31, 2011 and 63,666 at March 31, 2011	611	637	[1]
Additional paid-in capital	5,872,226	5,891,036	[1]
Accumulated other comprehensive loss	(3,171)	(1,597)	[1]
Accumulated deficit	(5,643,372)	(5,628,266)	[1]
Total stockholders' equity	226,294	261,810	[1]
Total liabilities and stockholders' equity	$ 267,071	$ 308,657	[1]

[1] Note: Amounts have been derived from the March 31, 2011 audited consolidated financial statements.