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)
6 Months Ended
Jun. 30, 2018
USD ($)
$ / shares
shares
Shares  
Outstanding at December 31, 2017 | shares 2,315,035
2018 Grants | shares 0
Exercised | shares 0
Forfeited | shares (254,027)
Outstanding at June 30, 2018 | shares 2,061,008
Exercisable at June 30, 2018 | shares 917,357
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 4.37
Weighted Average Exercise Price Outstanding at June 30, 2018 | $ / shares 3.29
Weighted Average Exercise Price Exercisable at June 30, 2018 | $ / shares $ 4.41
Weighted Average Remaining Contractual Life (Years)  
Weighted Average Remaining Contractual Life Outstanding at June 30, 2018 7 years 4 months 17 days
Weighted Average Remaining Contractual Life Exercisable at June 30, 2018 6 years 14 days
Intrinsic Value  
Intrinsic Value Outstanding at June 30, 2018 | $ $ 535,200
Intrinsic Value Exercisable at June 30, 2018 | $ $ 46,440