Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Defined Contribution Plan (Details)

v3.6.0.2
Commitments and Contingencies - Defined Contribution Plan (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]      
Defined contribution plan, maximum annual contributions per employee, percent 92.00%    
Defined benefit plan, employer matching contribution, percent of match (up to) 4.00%    
Defined benefit plan, contributions by employer $ 102,230 $ 1,514,478 $ 1,270,081