XML 62 R52.htm IDEA: XBRL DOCUMENT v3.8.0.1
Share-Based Compensation - 2014 Equity Incentive Plan (Details) - 2014 Equity Incentive Plan - shares
9 Months Ended
Sep. 30, 2017
Apr. 30, 2017
Jan. 31, 2017
Dec. 31, 2016
Share-Based Compensation        
Shares authorized 4,899,230   4,899,230 4,000,000
Number of shares remained available for future grant 0 372   1,034,805
Minimum        
Share-Based Compensation        
Percentage of exercise price per share of stock options over fair market value of common share 100.00%      
Maximum        
Share-Based Compensation        
Stock option term P10Y