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4. Sales of Products: Schedule of sales by significant product type (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Details
Concentrate sales	$ 1,133,898	$ 824,029
Dore sales	10,777	277,362
Total	$ 1,144,675	$ 1,101,391

X

- Definition

Represents the monetary amount of Concentrate sales, during the indicated time period.

+ References

No definition available.

+ Details

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Namespace Prefix:	fil_
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X

- Definition

Dore' sales

+ References

No definition available.

+ Details

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X

- Definition

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

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- References

No definition available.

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