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Restricted Cash	12 Months Ended
Restricted Cash	Dec. 31, 2017
Restricted Cash [Abstract]
Restricted Cash	4. Restricted Cash The Company is required to maintain a security deposit for its operating lease agreement for the duration of the lease agreement and for its credit cards as long as they are in place. At both December 31, 2017 and 2016, the Company had certificates of deposit for $260,000, which represented collateral as security deposits for its operating lease agreement for its facility and its credit card.