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Other Current Assets	6 Months Ended
Other Current Assets	Jun. 30, 2011
Other Current Assets [Abstract]
Other Current Assets	4. Other Current Assets Other current assets includes amounts advanced to a contract services provider. These advances will offset future liabilities incurred with this service provider for services and travel related to our clinical trials. As of June 30, 2011, the amount included in other current assets was $1.4 million.