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Subsequent Event	9 Months Ended
Subsequent Event	Sep. 30, 2013
Subsequent Event
Subsequent Event	P. Subsequent Event On October 22, 2013, we entered into an Agreement of Sale with 61 Mooney Street LLC for the sale of our Cambridge, Massachusetts manufacturing facility, including the land, building and related personal property. The closing occurred on October 30, 2013, at which time we received $2.0 million in consideration. We do not expect to recognize a material gain or loss on this transaction.