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3. INVENTORIES (Details) (USD $) In Thousands, unless otherwise specified	May 31, 2013	May 31, 2012
Inventories Details
Raw materials and sub-assemblies	$ 3,180	$ 3,218
Work-in-process	2,187	2,657
Finished goods	2	195
Inventory	$ 5,369	$ 6,070

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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