Stock-based Compensation - Summary of Option Activity (Details) - $ / shares
|
6 Months Ended |
12 Months Ended |
Jun. 30, 2019 |
Jun. 30, 2018 |
Dec. 31, 2018 |
| Share-based Payment Arrangement [Abstract] |
|
|
|
| Options Outstanding, Beginning |
1,172,707
|
332,707
|
332,707
|
| Options Outstanding, Option granted |
75,000
|
|
850,000
|
| Options Outstanding, Expired |
|
|
|
| Options Outstanding, Forfeited options |
|
|
|
| Options Outstanding, Exercised |
|
|
|
| Options Outstanding, Ending |
1,247,707
|
|
1,172,707
|
| Weighted Average Exercise Price Outstanding, Beginning |
$ 2.23
|
$ 1.29
|
$ 1.29
|
| Weighted Average Exercise Price Options granted |
0.71
|
|
2.63
|
| Weighted Average Exercise Price Expired |
|
|
|
| Weighted Average Exercise Price Forfeited options |
|
|
|
| Weighted Average Exercise Price Exercised |
|
|
|
| Weighted Average Exercise Price Outstanding, Ending |
2.10
|
|
2.23
|
| Weighted Average Fair Value Outstanding, Beginning |
1.09
|
$ 0.70
|
0.70
|
| Weighted Average Fair Value Options granted |
0.52
|
|
1.24
|
| Weighted Average Fair Value Expired |
|
|
|
| Weighted Average Fair Value Forfeited options |
|
|
|
| Weighted Average Fair Value Exercised |
|
|
|
| Weighted Average Fair Value Outstanding, Ending |
$ 1.03
|
|
$ 1.09
|
| Weighted-average Remaining Contractual Life (years) Outstanding, Beginning |
8 years 8 months 19 days
|
|
7 years 18 days
|
| Weighted-average Remaining Contractual Life (years) Options granted |
9 years 11 months 26 days
|
|
9 years 11 months 23 days
|
| Weighted-average Remaining Contractual Life (years) Outstanding, Ending |
7 years 11 months 19 days
|
|
8 years 8 months 19 days
|