Commitments - Additional Information (Details)		3 Months Ended
	Sep. 27, 2017 USD ($)	Mar. 31, 2018 USD ($)	Mar. 06, 2018 ft²
Newton Lease
Loss Contingencies [Line Items]
Lease agreement date		Mar. 06, 2018
Square feet of office space leased | ft²			2,760
Lease commencement date		Oct. 01, 2018
Lease expiration date		Sep. 30, 2021
Sublease Commencement Date		Oct. 16, 2017
Sublease expiration date		Sep. 30, 2018
Total commitment for rent		$ 313,560
Security deposit		$ 17,880
Pending Litigation | Piper Jaffray & Co. | Private Acer
Loss Contingencies [Line Items]
Loss contingency payable fees	$ 1,097,207
Loss contingency closing date	Sep. 19, 2017
Financing aggregate consideration	$ 15,700,000
Reimbursement expenses	$ 67,496