Research And Development (Details) (USD $) In Thousands	9 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Research And Development [Abstract]
Deferred research and development costs	$ 0		$ 0
Amortization expense	$ 0	$ 0

Amount of other deferred costs charged against earnings in the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.17)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration