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Consolidated Statements Of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2011
Consolidated Statements Of Operations [Abstract]
Revenues	$ 87,419	$ 76,543	$ 286,603
Cost and operating expenses:
Cost of revenues	71,937	82,882	308,183
Research and development	15,325	27,271	32,517
Selling, general and administrative	49,652	72,118	72,382
Restructuring and impairments	7,922	9,188	49,955
Write-off of advance payment		20,551
Amortization of acquisition related intangibles	324	972	1,549
Total operating expenses	145,160	212,982	464,586
Operating loss	(57,741)	(136,439)	(177,983)
Change in fair value of derivatives and warrants	7,556
Interest (expense) income, net	(14,948)	243	830
Other (expense) income, net	(1,262)	738	6,822
(Loss) income before income tax (benefit) expense	(66,395)	(135,458)	(170,331)
Income tax (benefit) expense	(264)	1,369	15,953
Net loss	$ (66,131)	$ (136,827)	$ (186,284)
Net loss per common share
Basic	$ (1.25)	$ (2.69)	$ (3.95)
Diluted	$ (1.25)	$ (2.69)	$ (3.95)
Weighted average number of common shares outstanding
Basic	53,070	50,842	47,103
Diluted	53,070	50,842	47,103

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The aggregate amount provided for estimated restructuring charges, remediation costs, and asset impairment loss during an accounting period. Generally, these items are either unusual or infrequent, but not both (in which case they would be extraordinary items).

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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