Certain Financial Statement Information (Tables)

3 Months Ended

Jun. 30, 2013

Certain Financial Statement Information [Abstract]

Schedule of Accounts receivable

Accounts receivable:

	June 30, 2013			March 31, 2013
	(In thousands)
Accounts receivable	$	29,278		$	25,278
Less: allowance for bad debts	(463		)	(703		)
	$	28,815		$	24,575

Schedule of Inventories

Inventories:

	June 30, 2013		March 31, 2013
	(In thousands)
Finished goods	$	6,247	$	7,247
Work in process	4,855		4,098
Raw materials	1,613		1,555
	$	12,715	$	12,900

Schedule of Other current assets

Other current assets:

	June 30, 2013		March 31, 2013
	(In thousands)
Prepaid expenses	$	12,765	$	13,762
Executive deferred compensation assets	700		693
Deposits	752		828
Receivable from sale of strategic investment and TPack	4,673		1,331
Other	1,288		1,384
	$	20,178	$	17,998

Schedule of Property and equipment

Property and equipment:

	Useful Life	June 30, 2013			March 31, 2013
	(In years)	(In thousands)
Machinery and equipment *	5-7	$	45,077		$	40,063
Leasehold improvements	1-15	10,669			14,202
Computers, office furniture and equipment	3-7	44,980			43,485
Buildings	31.5	2,756			2,756
Land	—	9,800			9,800
		113,282			110,306
Less: accumulated depreciation and amortization		(77,721		)	(75,915		)
		$	35,561		$	34,391

* Includes capitalized mask costs.

Schedule of Goodwill

Goodwill is as follows:

	June 30, 2013		March 31, 2012
	(In thousands)
Goodwill	$	11,425	$	13,183

Schedule of Purchased intangible assets

Purchase-related intangibles were as follows:

	June 30, 2013								March 31, 2013
	Gross		Accumulated Amortization and Impairments			Net		Weighted average remaining useful life	Gross		Accumulated Amortization and Impairments			Net		Weighted average remaining useful life
	(In thousands)							(In years)	(In thousands)							(In years)
Developed technology/in-process research and development	$	425,000	$	(425,000	)	$	—	—	$	441,300	$	(431,771	)	$	9,529	3.5
Customer relationships	6,330		(6,038		)	292		1.2	12,830		(10,507		)	2,323		2.1
Patents/core technology rights/tradename	62,306		(62,306		)	—		—	63,206		(63,067		)	139		0.3
	$	493,636	$	(493,344	)	$	292		$	517,336	$	(505,345	)	$	11,991

During the quarter ended June 30, 2013, $11.4 million of purchased intangibles were written off pursuant to the sale of of TPack. Please refer to Note 2 to the Condensed Consolidated Notes to the Financial Statements for further discussion.

Schedule of Estimated future amortization expense of purchased intangible assets

As of June 30, 2013, the estimated future amortization expense of purchased intangible assets to be charged to cost of sales and operating expenses was as follows (in thousands):

	Cost of Sales		Operating Expenses		Total
Fiscal Years Ending March 31,
2014	$	—	$	188	$	188
2015	—		104		104
2016 and thereafter	—		—		—
Total	$	—	$	292	$	292

Schedule of Other assets

Other assets:

	June 30, 2013		March 31, 2013
	(In thousands)
Non-current portion of prepaid expenses	$	4,713	$	7,866
Strategic investments	3,000		3,000
	$	7,713	$	10,866

Schedule of Other accrued liabilities

Other accrued liabilities:

	June 30, 2013		March 31, 2013
	(In thousands)
Customer deposits*	$	688	$	237
Employee related liabilities	2,078		2,236
Executive deferred compensation	951		1,284
Income taxes	1,426		903
Professional fees	4,414		3,840
Other	2,889		2,230
	$	12,446	$	10,730

* Includes credit balances in Accounts Receivable that have been reclassified as Other Accrued Liabilities

Schedule of Cash, cash equivalents and available-for-sale investments by type of instruments

The following is a summary of cash, cash equivalents and available-for-sale investments by type of instrument (in thousands):

	June 30, 2013								March 31, 2013
	Amortized Cost		Gross Unrealized				Estimated Fair Value		Amortized Cost		Gross Unrealized				Estimated Fair Value
			Gains		Losses						Gains		Losses
Cash	$	13,140	$	—	$	—	$	13,140	$	8,529	$	—	$	—	$	8,529
Cash equivalents	26,533		—		—		26,533		10,536		—		—		10,536
U.S. Treasury securities and agency bonds	12,521		6		12		12,515		12,363		10		—		12,373
Corporate bonds	10,800		38		9		10,829		15,567		63		2		15,628
Mortgage-backed and asset-backed securities*	4,130		362		20		4,472		3,655		355		7		4,003
Closed-end bond funds	16,695		2,754		538		18,911		21,914		5,340		39		27,215
Preferred stock	2,406		924		—		3,330		4,878		2,314		—		7,192
	$	86,225	$	4,084	$	579	$	89,730	$	77,442	$	8,082	$	48	$	85,476
Reported as:
Cash and cash equivalents							$	39,673							$	19,065
Short-term investments available-for-sale							50,057								66,411
							$	89,730							$	85,476

* At June 30, 2013 and March 31, 2013, approximately $1.3 million and $1.4 million of the estimated fair value presented were mortgage-backed securities, respectively.

Schedule of Cash, cash equivalents and available-for-sale investments by type of instruments measured at fair value on recurring basis

The following is a summary of cash, cash equivalents and available-for-sale investments by type of instrument measured at fair value on a recurring basis (in thousands):

	June 30, 2013								March 31, 2013
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Cash	$	13,140	$	—	$	—	$	13,140	$	8,529	$	—	$	—	$	8,529
Cash equivalents	25,378		1,155		—		26,533		9,508		1,028		—		10,536
U.S. Treasury securities and agency bonds	11,951		564		—		12,515		12,373		—		—		12,373
Corporate bonds	—		10,829		—		10,829		—		15,628		—		15,628
Mortgage-backed and asset-backed securities	—		4,472		—		4,472		—		4,003		—		4,003
Closed-end bond funds	18,911		—		—		18,911		27,215		—		—		27,215
Preferred stock	—		3,330		—		3,330		—		7,192		—		7,192
	$	69,380	$	20,350	$	—	$	89,730	$	57,625	$	27,851	$	—	$	85,476

Schedule of Cost and estimated fair values of available-for-sale securities with stated maturities by contractual maturity

The following is a summary of the cost and estimated fair values of available-for-sale securities with stated maturities, which include U.S. Treasury securities and agency bonds, corporate bonds and mortgage-backed and asset-backed securities, by contractual maturity (in thousands):

	June 30, 2013				March 31, 2013
	Cost		Fair Value		Cost		Fair Value
Less than 1 year	$	7,497	$	7,508	$	9,205	$	9,217
Mature in 1 – 2 years	17,140		17,147		19,843		20,040
Mature in 3 – 5 years	170		171		1,575		1,649
Mature after 5 years	2,644		2,990		962		1,098
	$	27,451	$	27,816	$	31,585	$	32,004

Schedule of Gross unrealized losses

The following is a summary of gross unrealized losses (in thousands):

	Less Than 12 Months of Unrealized Losses					12 Months or More of Unrealized Losses					Total
As of June 30, 2013	Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
U.S. Treasury securities and agency bonds	$	4,514	$	(12	)	$	—	$	—		$	4,514	$	(12	)
Corporate bonds	3,255		(9		)	—		—			3,255		(9		)
Mortgage-backed and asset-backed securities	1,780		(20		)	25		—			1,805		(20		)
Closed-end bond funds	5,795		(479		)	415		(59		)	6,210		(538		)
	$	15,344	$	(520	)	$	440	$	(59	)	$	15,784	$	(579	)

	Less Than 12 Months of Unrealized Losses					12 Months or More of Unrealized Losses					Total
As of March 31, 2013	Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses			Estimated Fair Value		Gross Unrealized Losses
U.S. Treasury securities and agency bonds	$	300	$	—		$	—	$	—		$	300	$	—
Corporate bonds	2,276		(2		)	113		—			2,389		(2		)
Mortgage-backed and asset-backed securities	647		(3		)	—		(4		)	647		(7		)
Closed-end bond funds	—		—			6,991		(39		)	6,991		(39		)
	$	3,223	$	(5	)	$	7,104	$	(43	)	$	10,327	$	(48	)

Schedule of Warranty reserve activity

The following table summarizes warranty reserve activity (in thousands):

	Three Months Ended
	June 30,
	2013			2012
Beginning balance	$	220		$	454
Charged to costs of revenues	(15		)	130
Cost incurred	(2		)	(137		)
Ending balance	$	203		$	447

Schedule of Interest income, net

Interest income (expense), net (in thousands):

	Three Months Ended
	June 30,
	2013		2012
Interest income	$	468	$	675
Net realized gain on short-term investments	3,198		1,004
	$	3,666	$	1,679

Schedule of Reconciliation of shares used to calculate basic and diluted net loss per share

The reconciliation of shares used to calculate basic and diluted net income (loss) per share consists of the following (in thousands, except per share data):

	Three Months Ended
	June 30,
	2013		2012
Net income (loss)	$	10,857	$	(23,390	)
Shares used in net income (loss) per share computation:
Weighted average common shares outstanding, basic	69,360		62,409
Net effect of dilutive common share equivalents	874		—
Weighted average common shares outstanding, diluted	70,234		62,409
Basic net income (loss) per share	$	0.16	$	(0.37	)
Diluted net income (loss) per share	$	0.15	$	(0.37	)