Commitments and Contingencies - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Commitments And Contingencies [Line Items]
Lease expiration date	Jan. 03, 2020
Operating leases, aggregate future minimum payments, due	$ 30,576
Operating leases, future minimum payments, due in 2018	15,288
Operating leases, future minimum payments, due in 2019	$ 15,288
Additional cash payment		$ 900,000
Tuxis
Commitments And Contingencies [Line Items]
Additional cash payment		$ 900,000