Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Summary Of Unvested Shares) (Details)

v3.10.0.1
Stock-Based Compensation (Summary Of Unvested Shares) (Details) - Stock Option [Member]
9 Months Ended
Sep. 30, 2018
$ / shares
shares
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]  
Number of Options, Unvested | shares 727,543
Number of Options, Granted | shares 860,307
Number of Options, Vested | shares (334,533)
Number of Options, Cancelled | shares
Number of Options, Unvested | shares 1,253,317
Weighted Average Fair Value at Grant Date, Unvested | $ / shares $ 2.39
Weighted Average Fair Value at Grant Date, Granted | $ / shares 1.27
Weighted Average Fair Value at Grant Date, Vested | $ / shares 2.89
Weighted Average Fair Value at Grant Date, Cancelled | $ / shares
Weighted Average Fair Value at Grant Date, Unvested | $ / shares $ 1.49