20 | Accounts payable and accrued expenses |
2017 | 2016 | |||||||
General expenses | $ | 143,409 | $ | 121,589 | ||||
Purchased services | 91,122 | 67,374 | ||||||
Operating expenses | 42,035 | 160,413 | ||||||
Salaries and wages | 1,678 | 3,893 | ||||||
Taxes payable | 1,492 | 11,032 | ||||||
Other | 62,182 | 41,204 | ||||||
$ | 341,918 | $ | 405,505 |