XML 59 R48.htm IDEA: XBRL DOCUMENT v3.10.0.1
3. Sales of Products: Schedule of sales by significant product type (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Details        
Concentrate sales $ 1,032,845 $ 1,219,813 $ 2,313,428 $ 3,171,821
Dore sales   46,326 310,364 46,326
Total revenue $ 1,032,845 $ 1,266,139 $ 2,623,792 $ 3,218,147