Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - Summary of Status of Company's Stock Option Activity (Details)

v3.10.0.1
Stock-based Compensation - Summary of Status of Company's Stock Option Activity (Details)
9 Months Ended
Sep. 30, 2018
USD ($)
$ / shares
shares
Shares  
Outstanding at December 31, 2017 | shares 2,315,035
2018 Grants | shares 0
Exercised | shares 0
Forfeited | shares (285,527)
Outstanding at September 30, 2018 | shares 2,029,508
Exercisable at September 30, 2018 | shares 940,357
Weighted Average Exercise Price  
Weighted Average Exercise Price Outstanding at December 31, 2017 | $ / shares $ 3.41
Weighted Average Exercise Price 2018 Grants | $ / shares 0
Weighted Average Exercise Price Exercised | $ / shares 0
Weighted Average Exercise Price Forfeited | $ / shares 4.19
Weighted Average Exercise Price Outstanding at September 30, 2018 | $ / shares 3.30
Weighted Average Exercise Price Exercisable at September 30, 2018 | $ / shares $ 4.41
Weighted Average Remaining Contractual Life (Years)  
Weighted Average Remaining Contractual Life Outstanding at September 30, 2018 7 years 1 month 17 days
Weighted Average Remaining Contractual Life Exercisable at September 30, 2018 5 years 9 months 22 days
Intrinsic Value  
Intrinsic Value Outstanding at September 30, 2018 | $ $ 1,743,600
Intrinsic Value Exercisable at September 30, 2018 | $ $ 242,080