Basis of Presentation (Policies)	6 Months Ended
Basis of Presentation (Policies)	Jun. 30, 2011
Basis of presentation [Abstract]
Recently Adopted Accounting Standards	Recently Adopted Accounting Standards In October 2009, the Financial Accounting Standards Board (“FASB”) issued new guidance for revenue recognition with multiple deliverables. The Company adopted this guidance prospectively for revenue arrangements entered into or materially modified on or after January 1, 2011. This guidance eliminates the residual method under the current guidance and replaces it with the “relative selling price” method when allocating revenue in a multiple deliverable arrangement. The selling price for each deliverable shall be determined using vendor specific objective evidence of selling price, if it exists, otherwise third-party evidence of selling price shall be used. If neither exists for a deliverable, the vendor shall use its best estimate of the selling price for that deliverable. The effect of adoption on the Company’s financial position and results of operations was not material.
Contingencies and Legal Defense Costs	Legal defense costs expected to be incurred in connection with a loss contingency are accrued when probable and reasonably estimable.

- Definition

Disclosure of accounting policy for legal costs incurred to protect or defend the entity's assets and rights, or to obtain assets, including monetary damages, or to obtain rights.

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