Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

4. SIGNIFICANT ACCOUNTING POLICIES: d) Property, plant and equipment: Schedule of Depreciation (Details)

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4. SIGNIFICANT ACCOUNTING POLICIES: d) Property, plant and equipment: Schedule of Depreciation (Details)
12 Months Ended
Dec. 31, 2020
Building and Improvements  
Depreciation method, property, plant and equipment Straight-line
Building and Improvements | Bottom of range  
Property, Plant and Equipment, Useful Life 10 years
Building and Improvements | Top of range  
Property, Plant and Equipment, Useful Life 20 years
Machinery and Equipment  
Depreciation method, property, plant and equipment Straight-line
Machinery and Equipment | Bottom of range  
Property, Plant and Equipment, Useful Life 4 years
Machinery and Equipment | Top of range  
Property, Plant and Equipment, Useful Life 20 years
Right of use assets  
Property, Plant and Equipment, Useful Life 2 years
Depreciation method, property, plant and equipment Straight-line