Summary of Significant Accounting Policies (Details) (Recurring [Member], USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Assets:
Available-for-Sale Securities	$ 0	$ 248
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Assets:
Available-for-Sale Securities	0	248
Significant Other Observable Inputs (Level 2) [Member]
Assets:
Available-for-Sale Securities	0	0
Unobservable Inputs (Level 3)[Member]
Assets:
Available-for-Sale Securities	$ 0	$ 0

- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents investment securities as of the balance sheet date which may include marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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