| Current liabilities |
| |
|
June 30,
2018 |
|
|
December 31,
2017 |
|
| Accounts payable |
|
$ |
462,589 |
|
|
$ |
780,262 |
|
| Accrued payroll |
|
|
34,839 |
|
|
|
40,578 |
|
| Accrued bonuses |
|
|
131,749 |
|
|
|
- |
|
| Accrued employee benefits |
|
|
52,229 |
|
|
|
27,375 |
|
| Insurance premium financing |
|
|
69,675 |
|
|
|
- |
|
| Accrued interest on senior secured convertible promissory notes |
|
|
295 |
|
|
|
- |
|
| Total |
|
$ |
751,376 |
|
|
$ |
848,215 |
|
|