Annual report pursuant to Section 13 and 15(d)

Defined Contribution Plan - (Details)

v3.8.0.1
Defined Contribution Plan - (Details)
$ in Millions
12 Months Ended
Dec. 31, 2017
USD ($)
Employer match (as a percent) 100.00%
Plan Compensation (as a percent) 1.00%
Employee contribution (as a percent) 50.00%
Contribution made by the company $ 0.3
Minimum  
Plan Compensation (as a percent) 1.00%
Maximum  
Plan Compensation (as a percent) 6.00%