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Balance Sheet Components (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Aug. 31, 2012 | Nov. 30, 2012
Inventories |  |
Raw materials | $ 2,999 | $ 2,808
Work in process | 4,065 | 3,618
Finished goods | 5,952 | 5,285
Total | 13,016 | 11,711
Property, Plant and Equipment |  |
Total property, plant and equipment | 86,706 | 89,462
Less: Accumulated depreciation, amortization and impairment | (40,064) | (43,250)
Property, plant and equipment, net | 46,642 | 46,212
Impairment of Long-Lived Assets |  |
Impairment of long-lived assets | 7,507 |
Buildings and improvements |  |
Property, Plant and Equipment |  |
Total property, plant and equipment | 14,501 | 14,940
Machinery and equipment |  |
Property, Plant and Equipment |  |
Total property, plant and equipment | 64,267 | 66,543
Leasehold improvements |  |
Property, Plant and Equipment |  |
Total property, plant and equipment | 3,143 | 3,238
Other equipment |  |
Property, Plant and Equipment |  |
Total property, plant and equipment | 2,249 | 2,243
Construction in progress |  |
Property, Plant and Equipment |  |
Total property, plant and equipment | $ 2,546 | $ 2,498

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