XML 99 R85.htm IDEA: XBRL DOCUMENT v3.21.1
13. Sales of Products: Schedule of sales by significant product type (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Details    
Concentrate sales $ 5,384,597 $ 5,857,942
Dore sales 290,350 261,570
Total $ 5,674,947 $ 6,119,512