Represents the increase in the lease rate on an annual basis.

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- Definition

Represents the monthly lease rate for an operating lease.

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- Definition

Represents the term of an operating lease.

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- Definition

Represents the number of renewal options for an operating lease.

+ Details

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- Definition

The amount authorized by an entity's Board of Directors under a stock repurchase plan.

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- Definition

The remaining repurchase amount authorized by an entity's Board of Directors under a stock repurchase plan.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Subsequent Events (Details) (USD $)	1 Months Ended			1 Months Ended
Subsequent Events (Details) (USD $)	Feb. 28, 2011	Nov. 30, 2011 Lease Extension Pleasanton Manufacturing Facility month option	Nov. 02, 2011 Lease Extension Pleasanton Manufacturing Facility	Nov. 30, 2011 Shares authorized to be repurchased	Nov. 30, 2011 Remaining authorized shares to be repurchased
Subsequent Events
Renewal options (in options)		2
Lease term (in months)		60
Monthly lease rate for the initial year			$ 73,000
Annual increase in lease rate (as a percent)		3.40%
Maximum amount for repurchase of common stock	100,000,000			50,000,000
Remaining share amount authorized to be repurchased under the program originally approved on February 12, 2011					$ 50,000,000