Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
	Jun. 30, 2012		Jun. 30, 2011
Operating activities:
Net loss	$ (23,390,000)		$ (6,877,000)
Adjustments to reconcile net loss to net cash used for operating activities:
Depreciation	2,439,000		1,822,000
Amortization of purchased intangibles	1,329,000		2,614,000
Stock-based compensation expense:
Stock options	1,488,000		1,573,000
Restricted stock units	6,201,000		2,605,000
Warrants	1,289,000,000
Veloce accrued liability	2,325,000
Tax benefit from other comprehensive income			(367,000)
Acquisition related adjustment	(133,000)
Net loss on disposals of property			10,000
Changes in operating assets and liabilities:
Accounts receivable	6,319,000		(4,160,000)
Inventories	650,000		(185,000)
Other assets	(1,045,000)		(3,230,000)
Accounts payable	(4,751,000)		624,000
Accrued payroll and other accrued liabilities	(12,584,000)		1,825,000
Deferred revenue	(597,000)		(448,000)
Net cash used for operating activities	(20,460,000)		(4,194,000)
Investing activities:
Proceeds from sales and maturities of short-term investments	14,182,000		41,891,000
Purchases of short-term investments	(4,326,000)		(57,879,000)
Purchase of property, equipment and other assets	(5,598,000)		(4,533,000)
Proceeds from sale of strategic equity investment	7,144,000
Purchases of strategic equity investment	(500,000)		(2,500,000)
Funding of note receivable			(1,000,000)
Net cash provided by (used for) investing activities	10,902,000		(24,021,000)
Financing activities:
Proceeds from issuance of common stock	3,330,000		587,000
Funding of restricted stock units withheld for taxes	(216,000)		(2,172,000)
Repurchase of common stock	(654,000)		(3,097,000)
Funding of structured stock repurchase agreements			(10,000,000)
Other	(253,000)		(111,000)
Net cash provided by (used for) financing activities	2,207,000		(14,793,000)
Net decrease in cash and cash equivalents	(7,351,000)		(43,008,000)
Cash and cash equivalents at beginning of period	28,065,000	[1]	84,402,000
Cash and cash equivalents at end of period	20,714,000		41,394,000
Supplementary cash flow disclosures:
Income taxes	131,000		457,000
Shares issued for Veloce merger consideration	$ 13,683,000

[1] Note: Amounts have been derived from the March 31, 2012 audited consolidated financial statements.