Certain Financial Statement Information (Tables)

3 Months Ended

Jun. 30, 2014

Certain Financial Statement Information [Abstract]

Schedule of Accounts receivable

Accounts receivable:

	June 30, 2014			March 31, 2014
	(In thousands)
Accounts receivable	$	23,387		$	25,629
Less: allowance for bad debts	(455		)	(451		)
	$	22,932		$	25,178

Schedule of Inventories

Inventories:

	June 30, 2014		March 31, 2014
	(In thousands)
Finished goods	$	11,609	$	9,375
Work in process	8,103		6,510
Raw materials	961		3,061
	$	20,673	$	18,946

Schedule of Other current assets

Other current assets:

	June 30, 2014		March 31, 2014
	(In thousands)
Prepaid expenses	$	9,888	$	10,978
Executive deferred compensation assets	1,071		1,035
Deposits	554		585
Proceeds receivable from sale of strategic investment	—		3,353
Other	759		848
	$	12,272	$	16,799

Schedule of Property and equipment

Property and equipment:

	Useful Life	June 30, 2014			March 31, 2014
	(In years)	(In thousands)
Machinery and equipment	3-5	$	45,984		$	44,503
Leasehold improvements	1-5	11,722			11,574
Computers, office furniture and equipment	3-5	43,500			43,365
		101,206			99,442
Less: accumulated depreciation and amortization		(80,903		)	(78,696		)
		$	20,303		$	20,746

Schedule of Goodwill

Goodwill is as follows:

	June 30, 2014		March 31, 2014
	(In thousands)
Goodwill	$	11,425	$	11,425

Schedule of Purchased intangible assets

Purchase-related intangibles are as follows:

	June 30, 2014								March 31, 2014
	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	)	$	—	0.0	$	425,000	$	(425,000	)	$	—	0.0
Customer relationships	6,330		(6,288		)	42		0.2	6,330		(6,225		)	105		0.4
Patents/core technology rights/trade name	62,306		(62,306		)	—		0.0	62,306		(62,306		)	—		0.0
	$	493,636	$	(493,594	)	$	42		$	493,636	$	(493,531	)	$	105

Schedule of Other assets

Other assets:

	June 30, 2014		March 31, 2014
	(In thousands)
Non-current portion of prepaid expenses	$	3,416	$	4,235
Strategic investments*	3,000		3,000
Other	519		519
	$	6,935	$	7,754

Schedule of Other accrued liabilities

Other accrued liabilities:

	June 30, 2014		March 31, 2014
	(In thousands)
Employee related liabilities	$	1,734	$	1,733
Executive deferred compensation	1,363		1,314
Income taxes	941		962
Professional fees	1,300		1,259
Other	4,924		5,609
	$	10,262	$	10,877

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

Short-term investments:

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

	June 30, 2014									March 31, 2014
	Amortized Cost		Gross Unrealized					Estimated Fair Value		Amortized Cost		Gross Unrealized					Estimated Fair Value
			Gains		Losses							Gains		Losses
Cash	$	56,869	$	—	$	—		$	56,869	$	65,867	$	—	$	—		$	65,867
Cash equivalents	5,398		—		—			5,398		5,672		—		—			5,672
U.S. Treasury securities and agency bonds	2,838		—		—			2,838		2,838		—		—			2,838
Corporate bonds	11,320		41		(1		)	11,360		10,599		30		(2		)	10,627
Mortgage-backed and asset-backed securities*	1,709		323		(2		)	2,030		1,793		297		(16		)	2,074
Closed-end bond funds	14,373		2,709		(102		)	16,980		14,373		2,392		(402		)	16,363
Preferred stock	2,406		729		—			3,135		2,406		736		—			3,142
	$	94,913	$	3,802	$	(105	)	$	98,610	$	103,548	$	3,455	$	(420	)	$	106,583
Reported as:
Cash and cash equivalents								$	62,267								$	71,539
Short-term investments available-for-sale								36,343									35,044
								$	98,610								$	106,583

* At June 30, 2014 and March 31, 2014, approximately $1.1 million of the estimated fair value presented were mortgage-backed securities.

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, 2014								March 31, 2014
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Cash	$	56,869	$	—	$	—	$	56,869	$	65,867	$	—	$	—	$	65,867
Cash equivalents	5,398		—		—		5,398		5,672		—		—		5,672
U.S. Treasury securities and agency bonds	2,838		—		—		2,838		2,838		—		—		2,838
Corporate bonds	—		11,360		—		11,360		—		10,627		—		10,627
Mortgage-backed and asset-backed securities	—		2,030		—		2,030		—		2,074		—		2,074
Closed-end bond funds	16,980		—		—		16,980		16,363		—		—		16,363
Preferred stock	—		3,135		—		3,135		—		3,142		—		3,142
	$	82,085	$	16,525	$	—	$	98,610	$	90,740	$	15,843	$	—	$	106,583

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, 2014
	Cost		Estimated Fair Value
Less than 1 year	$	7,172	$	7,300
Mature in 1 – 2 years	7,030		7,080
Mature in 3 – 5 years	525		536
Mature after 5 years	1,140		1,312
	$	15,867	$	16,228

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, 2014	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	$	—	$	—		$	—	$	—		$	—	$	—
Corporate bonds	500		(1		)	—		—			500		(1		)
Mortgage-backed and asset-backed securities	175		(1		)	124		(1		)	299		(2		)
Closed-end bond funds	22		—			5,475		(102		)	5,497		(102		)
	$	697	$	(2	)	$	5,599	$	(103	)	$	6,296	$	(105	)

	Less Than 12 Months of Unrealized Losses					12 Months or More of Unrealized Losses					Total
As of March 31, 2014	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	$	—	$	—		$	—	$	—		$	—	$	—
Corporate bonds	992		(2		)	—		—			992		(2		)
Mortgage-backed and asset-backed securities	431		(16		)	—		—			431		(16		)
Closed-end bond funds	4,819		(333		)	405		(69		)	5,224		(402		)
	$	6,242	$	(351	)	$	405	$	(69	)	$	6,647	$	(420	)

Schedule of Warranty reserve activity

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

	Three Months Ended
	June 30,
	2014			2013
Beginning balance	$	199		$	220
Consumption of reserve	(7		)	(15		)
Settlements and expirations	(15		)	(2		)
Ending balance	$	177		$	203

Schedule of Interest income, net

Interest income, net (in thousands):

	Three Months Ended
	June 30,
	2014			2013
Interest income	$	341		$	468
Net realized (loss) gain on short-term investments	(5		)	3,198
	$	336		$	3,666

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 (loss) income per share consists of the following (in thousands, except per share data):

	Three Months Ended
	June 30,
	2014			2013
Net (loss) income	$	(13,065	)	$	10,857
Shares used in net (loss) income per share computation:
Weighted average common shares outstanding, basic	77,916			69,360
Net effect of dilutive common share equivalents	—			874
Weighted average common shares outstanding, diluted	77,916			70,234
Basic net (loss) income per share	$	(0.17	)	$	0.16
Diluted net (loss) income per share	$	(0.17	)	$	0.15