Stock-based Compensation - Summary of Option Activity (Details) - $ / shares
|
9 Months Ended |
12 Months Ended |
Sep. 30, 2018 |
Sep. 30, 2017 |
Dec. 31, 2017 |
| Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
|
|
|
| Options Outstanding, Beginning |
322,707
|
261,372
|
261,372
|
| Options Outstanding Options granted |
850,000
|
97,474
|
61,335
|
| Options Outstanding Expired |
|
|
|
| Options Outstanding Forfeited options |
|
|
|
| Options Outstanding Exercised |
|
|
|
| Options Outstanding Ending |
1,172,707
|
|
322,707
|
| Weighted Average Exercise Price Outstanding, Beginning |
$ 1.29
|
$ 0.55
|
$ 0.55
|
| Weighted Average Exercise Price Options granted |
2.63
|
|
3.85
|
| Weighted Average Exercise Price Expired |
|
|
|
| Weighted Average Exercise Price Forfeited options |
|
|
|
| Weighted Average Exercise Price Exercised |
|
|
|
| Weighted Average Exercise Price Outstanding, Ending |
2.23
|
|
1.29
|
| Weighted Average Fair Value Outstanding, Beginning |
0.70
|
0.49
|
0.49
|
| Weighted Average Fair Value Options granted |
1.93
|
$ 1.59
|
1.59
|
| Weighted Average Fair Value Expired |
|
|
|
| Weighted Average Fair Value Forfeited options |
|
|
|
| Weighted Average Fair Value Exercised |
|
|
|
| Weighted Average Fair Value Outstanding, Ending |
$ 1.09
|
|
$ 0.70
|
| Weighted-average Remaining Contractual Life Outstanding, Beginning |
|
|
8 years 7 months 17 days
|
| Weighted-average Remaining Contractual Life Options granted |
9 years 11 months 23 days
|
|
4 years 7 months 6 days
|
| Weighted-average Remaining Contractual Life Outstanding, Ending |
8 years 11 months 19 days
|
|
7 years 18 days
|