Accounts and Other Receivables (Details) - USD ($) |
Dec. 31, 2020 |
Dec. 31, 2019 |
|---|---|---|
| Accounts and Other Receivables | ||
| Trade accounts receivable | $ 57,298 | $ 39,398 |
| Allowance for doubtful accounts | (22,468) | (21,262) |
| Accounts and other receivables | $ 34,830 | $ 18,136 |