Other Assets (Schedule of Other Assets) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Sep. 30, 2011
Other Assets [Abstract]
Restricted assets	$ 239	$ 230
Deposits to foundry for capacity	3,500	10,000
Investment in Giantec	4,025	4,025
Other investments	2,000	0
Nanya common stock	14,752	0
Restricted Investments	11,042	0
Other	3,319	1,166
Other assets	$ 38,877	$ 15,421

Amount of equity securities categorized neither as held-to-maturity nor as trading.

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+ Details

- Definition

This element represents the aggregate carrying amount of all cost-method investments held by the Company. Generally, such investments do not have readily determinable fair values and are not required to be accounted for by the equity method. The carrying amount of such securities equates to cost, adjusted for other-than-temporary impairment. The cost method and lower-of-cost or market, an adaptation of the cost method, is generally followed for most investments in noncontrolled corporations, in some corporate joint ventures, and to a lesser extent in unconsolidated subsidiaries, particularly foreign.

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+ Details