Certain Financial Statement Information (Tables)

12 Months Ended

Mar. 31, 2015

Certain Financial Statement Information [Abstract]

Schedule of Accounts receivable

Accounts receivable, net:

	March 31,
	2015			2014
	(In thousands)
Accounts receivable	$	12,709		$	25,629
Less: allowance for bad debts	(302		)	(451		)
	$	12,407		$	25,178

Schedule of Inventories

Inventories, net:

	March 31,
	2015		2014
	(In thousands)
Finished goods	$	15,310	$	9,375
Work in process	5,377		6,510
Raw materials	2,827		3,061
	$	23,514	$	18,946

Schedule of Other current assets

Other current assets:

	March 31,
	2015		2014
	(In thousands)
Prepaid expenses	$	14,847	$	10,978
Executive deferred compensation assets	1,004		1,035
Proceeds receivable from sale of strategic investment	—		3,353
Other	989		1,433
	$	16,840	$	16,799

Schedule of Property and equipment

Property and equipment:

	Useful Life	March 31,
		2015			2014
	(In years)	(In thousands)
Machinery and equipment*	3-5	$	37,286		$	44,503
Leasehold improvements	1-5	9,909			11,574
Computers, office furniture and equipment*	3-5	32,902			43,365
		80,097			99,442
Less: accumulated depreciation and amortization*		(63,348		)	(78,696		)
		$	16,749		$	20,746

* During the fiscal year ended March 31, 2015, the Company wrote-off fully depreciated assets with an acquired cost of $24.0 million. Also the Company wrote-off of a capitalized mask of $2.6 million as a result of recent restructuring. Refer to Note 7, Restructuring, to the Consolidated Financial Statements for additional information.

Schedule of Goodwill

Goodwill is as follows:

	March 31,
	2015		2014
	(In thousands)
Goodwill	$	11,425	$	11,425

Schedule of Purchased intangible assets

Purchase-related intangibles are as follows:

	March 31, 2015								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		(6,330		)	—		0.0	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	$	(493,636	)	$	—		$	493,636	$	(493,531	)	$	105

Schedule of Other assets

Other Assets:

	March 31,
	2015		2014
	(In thousands)
Non-current portion of prepaid expenses	$	1,974	$	4,235
Strategic investments*	—		3,000
Other	$	596	$	519
	$	2,570	$	7,754

Schedule of Other accrued liabilities

Other accrued liabilities:

	March 31,
	2015		2014
	(In thousands)
Employee related liabilities	$	1,454	$	1,733
Executive deferred compensation	1,025		1,314
Income taxes	1,311		962
Professional fees	515		1,259
Other	3,339		5,609
	$	7,644	$	10,877

Schedule of Warranty reserve activity

The following table summarizes warranty reserve activity:

	March 31,
	2015			2014
	(In thousands)
Beginning balance	$	199		$	220
Additions during the period	85			58
Settlements and expirations	(121		)	(79		)
Change in estimates	31			—
Ending balance	$	194		$	199

Schedule of Interest income, net and other-than-temporary impairment

Net realized gain on short-term investments and interest income, net:

	Fiscal Years Ended March 31,
	2015		2014		2013
	(In thousands)
Net realized gain on short-term investments	1,353		3,360		1,391
Interest income, net	1,411		1,692		2,347
Impairments of short-term investments and marketable securities	—		—		(1,143		)
	$	2,764	$	5,052	$	2,595

Schedule of Other income (expense), net

Other (expense) income, net:

	Fiscal Years Ended March 31,
	2015			2014		2013
	(In thousands)
Impairment of strategic investments	$	(3,000	)	$	—	$	(2,250	)
Impairment of notes receivable and other assets	—			—		(1,800		)
Net (loss) gain on disposals of property	(27		)	67		(21		)
Other, net	(29		)	287		1,677
	$	(3,056	)	$	354	$	(2,394	)

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

	Fiscal Years Ended March 31,
	2015			2014			2013
Net loss	$	(52,058	)	$	(5,694	)	$	(134,115	)
Shares used in net loss per share computation:
Weighted average common shares outstanding, basic	78,814			72,897			65,258
Net effect of dilutive common share equivalents	—			—			—
Weighted average common shares outstanding, diluted	78,814			72,897			65,258
Basic and diluted net loss per share	$	(0.66	)	$	(0.08	)	$	(2.06	)