​

​

Short-term

​

​

​

​

​

​

​

employee

​

Share-based 

​

​

benefits

​

Directors’ fees

​

payments

​

Total

​

​

$

​

$

​

$

​

$

Year ended December 31, 2020

​

​

​

​

Directors and officers

​

226,097

​

—

​

217,816

​

443,913

​

​

​

​

​

​

​

​

​

Year ended December 31, 2021

Directors and officers

531,656

62,200

331,809

925,665

​

​

​

​

​

​

​

​

​

Year ended December 31, 2022

Directors and officers

1,153,439

161,054

519,741

1,840,103