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Note 4 - Inventories (Detail) - Summary Of Inventory Stated At Lower Of Cost Or Market: (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Mar. 31, 2012
Finished goods, net	$ 26,564	$ 29,051
Raw materials	21,446	20,434
Work in progress	6,389	4,340
Total inventories, net	$ 54,399	$ 53,825

Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, 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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