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Note 6 - Composition of Certain Financial Statement Captions (Details) - Inventories (USD $) In Thousands, unless otherwise specified	Aug. 02, 2014	Feb. 01, 2014
Inventories [Abstract]
Wafers and other purchased materials	$ 9,783	$ 10,079
Work-in-process	4,116	1,527
Finished goods	6,406	8,797
Total inventory	$ 20,305	$ 20,403

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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