Commitments and Contingencies - (Details) (USD $)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Commitments And Contingencies
Operating lease, minimum payments due within next 12 months					$ 143,420
Operating lease, minimum payments due, year2				6,905
Operating lease, minimum payments due, year 3
Operating lease, minimum payments due, year 4
Operating lease, minimum payments due, year 5
Operating lease, minimum payments due, thereafter
Total operating lease, minimum payments due						$ 150,325