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Commitments and Contingencies	6 Months Ended
Commitments and Contingencies	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Operating Lease In June 2018, the Company extended the lease on its Woburn, Massachusetts manufacturing facilities (the “Woburn Lease”) through September 2025. As of September 2018, the Woburn Lease will have a monthly base rent of $13,285 and a 5-year extension option. In September 2014, the Company entered into a 7-year operating lease agreement with one 5-year extension option for its principal corporate office and product development location in Waltham, Massachusetts (the “Waltham Lease”). The term of the Waltham Lease commenced on February 20, 2015 and includes fixed payment obligations that escalate over the initial lease term. Average monthly base rent under the 7-year lease is $37,788.