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Inventory (Schedule Of Inventory) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Inventory [Abstract]
Raw materials	$ 9,962	$ 17,100
Work-in-progress	2,390	2,881
Finished goods	14,438	3,466
Deferred program costs	2,466	2,381
Inventory	29,256	25,828
Inventory write-down	$ 4,357	$ 63,882

X

- Definition

Carrying amount as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Carrying amount as of the balance sheet date of unprocessed items to be consumed in the manufacturing or production process. Also includes purchased parts that will be used as components of a finished product.

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Carrying amount as of the balance sheet date of merchandise or goods which are partially completed, are generally comprised of raw materials, labor and factory overhead costs, and which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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