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Note 5 - Balance Sheet Components (Details) - Inventories (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Inventories [Abstract]
Raw materials	$ 7,298	$ 12,453
Work in process	18,950	14,152
Finished goods	14,670	13,132
Total	$ 40,918us-gaap_InventoryNet	$ 39,737us-gaap_InventoryNet

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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