Additional paid in capital - Summary of Stock Option Activity (Details) - $ / shares |
6 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Summary of Stock Option Activity [Abstract] | ||||
| Outstanding, beginning of period | 5,236,401,500 | 5,014,851,500 | 4,963,851,500 | 4,962,301,500 |
| Average Exercise Price, beginning | $ 0.003 | $ 0.002 | $ 0.002 | $ 0.013 |
| Granted | 30,500,000 | 254,050,000 | 52,500,000 | 6,500,000 |
| Granted, per share | $ 0.035 | $ 0.028 | $ .015 | $ 0.002 |
| Exercised | (26,000,000) | |||
| Exercised per share | $ (0.003) | |||
| Cancelled | (13,500,000) | (6,500,000) | (1,500,000) | (4,950,000) |
| Cancelled per share | $ (0.034) | $ (0.015) | $ (0.015) | $ (0.061) |
| Outstanding, end of period | 5,253,401,500 | 5,236,401,500 | 5,014,851,500 | 4,963,851,500 |
| Average Exercise price, ending | $ 0.004 | $ 0.003 | $ 0.002 | $ 0.002 |
| Exercisable, end of period | 5,162,401,500 | 5,154,901,500 | 4,987,851,500 | 4,958,201,500 |
| Exercisable, end of period | $ 0.004 | $ 0.003 | $ 0.002 | $ 0.002 |