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SIGNIFICANT ACCOUNTING POLICIES (Tables)
 12 Months Ended
Dec. 31, 2022
Disclosure of objectives, policies and processes for managing capital [abstract]  
Disclosure of subsidiaries
SubsidiaryLocationPercentage of ownershipPropertyPrinciple activity
Premier Gold Mines USA Inc.Nevada100%HoldingMineral exploration
Goldcorp Dee LLCHumboldt, Nevada100%Lone TreeProduction
Ruby Hill Mining Company LLCEureka, Nevada100%Ruby HillProduction
Osgood Mining Company LLCHumboldt, Nevada100%Granite CreekPre-development
Au-Reka Gold CorporationEureka, Nevada100%McCoy-CovePre-development
Argenta LLCLander, Nevada100%InactiveMineral exploration
Premier Gold Mines Nevada Inc.Nevada100%InactiveMineral exploration
Premier Goldbanks LLCNevada100%InactiveMineral exploration
Premier Rye LLCNevada100%InactiveMineral exploration
Disclosure of interests in subsidiaries
SubsidiaryLocationPercentage of ownershipPropertyPrinciple activity
Premier Gold Mines USA Inc.Nevada100%HoldingMineral exploration
Goldcorp Dee LLCHumboldt, Nevada100%Lone TreeProduction
Ruby Hill Mining Company LLCEureka, Nevada100%Ruby HillProduction
Osgood Mining Company LLCHumboldt, Nevada100%Granite CreekPre-development
Au-Reka Gold CorporationEureka, Nevada100%McCoy-CovePre-development
Argenta LLCLander, Nevada100%InactiveMineral exploration
Premier Gold Mines Nevada Inc.Nevada100%InactiveMineral exploration
Premier Goldbanks LLCNevada100%InactiveMineral exploration
Premier Rye LLCNevada100%InactiveMineral exploration
Disclosure of detailed information about property, plant and equipment
Depreciation or depletion is computed using the following rates:

ItemMethodsRates
Mine propertiesUnits of productionEstimated proven and probable mineral reserves
Equipment, leasehold improvementsStraight lineLesser of lease term and estimated useful life
BuildingsStraight line20 years
Furniture, office equipment and softwareStraight line
2 – 5 years
Plant and equipmentStraight line, units of production
4 – 10 years, estimated proven and probable mineral reserves
Mining equipmentStraight line
1 – 10 years based on life of mine
Deferred stripping costsUnits of productionEstimated proven and probable mineral reserves accessible due to stripping activity
Cost
Mine properties
(i)
Development properties
(ii)
Exploration, evaluation and pre-development properties
(iii)
Buildings, plant and equipmentTotal
Balance as at January 1, 2021$96,537 $30,902 $52,463 $18,490 $198,392 
Additions3,677 69,049 169,195 199,952 441,873 
Disposals— — — (3)(3)
IFRS 16 Right of Use assets — — — 634 634 
Change in estimate of provision for environmental rehabilitation— 318 1,762 — 2,080 
Transfers(355)2,703 (200)(2,148)— 
Adjustments— — — (26)(26)
Classified as held for sale(97,699)(26,587)— (10,658)(134,944)
Balance as at December 31, 20212,160 76,385 223,220 206,241 508,006 
Additions— 32,422 241 23,450 56,113 
Disposals— — — (24)(24)
IFRS 16 Right of Use assets— — — 280 280 
Transfers— 899 7,182 (8,081)— 
Change in estimate of provision for environmental rehabilitation— (994)(22,608)— (23,602)
Balance as at December 31, 2022$2,160 $108,712 $208,035 $221,866 $540,773 
Accumulated depreciation and impairment
Balance as at January 1, 2021$93,298 $— $— $4,938 $98,236 
Depletion, depreciation and amortization2,877 — — 3,481 6,358 
Disposals— — — (3)(3)
Classified as held for sale(94,015)— — (5,219)(99,234)
Balance as at December 31, 20212,160 — — 3,197 5,357 
Depletion, depreciation and amortization— — — 6,177 6,177 
Disposals— — — (22)(22)
Balance as at December 31, 2022$2,160 $— $— $9,352 $11,512 
Carrying amounts
Balance, December 31, 2021$— $76,385 $223,220 $203,044 $502,649 
Balance as at December 31, 2022$— $108,712 $208,035 $212,514 $529,261 
Mine properties:
PropertyJanuary 1,
2021		AdditionsTransfersDepletionClassified as held for saleDecember 31, 2021
 Ruby Hill, Nevada1$— $2,160 $— $(2,160)$— $— 
 South Arturo, Nevada 23,239 1,517 (355)(717)(3,684)— 
Total$3,239 $3,677 $(355)$(2,877)$(3,684)$— 
Development properties:
PropertyJanuary 1, 2022AdditionsChange in estimate of environmental provisionTransfersClassified as held for saleDecember 31, 2022
South Arturo, Nevada$— $— $— $— $— $— 
Granite Creek, Nevada76,385 32,422 (994)899 — 108,712 
Total$76,385 $32,422 $(994)$899 $— $108,712 

PropertyJanuary 1,
2021		AdditionsChange in estimate of environmental provisionTransfersClassified as held for saleDecember 31, 2021
South Arturo, Nevada$23,402 $482 $— $2,703 $(26,587)$— 
Granite Creek, Nevada7,500 68,567 318 — — 76,385 
Total$30,902 $69,049 $318 $2,703 $(26,587)$76,385 
Exploration, evaluation and pre-development properties:
PropertyJanuary 1, 2022AdditionsChange in estimate of environmental provisionTransfersClassified as held for saleDecember 31, 2022
McCoy-Cove, Nevada$54,105 $— $(84)$7,182 $— $61,203 
Ruby Hill, Nevada103,594 — (10,705)— — 92,889 
Lone Tree, Nevada65,521 — (12,988)— — 52,533 
Argenta, Nevada — 241 1,169 — — 1,410 
Total$223,220 $241 $(22,608)$7,182 $— $208,035 

PropertyJanuary 1,
2021		AdditionsChange in estimate of environmental provisionTransfersClassified as held for saleDecember 31, 2021
McCoy-Cove, Nevada$52,213 $— $1,842 $50 $— $54,105 
Ruby Hill, Nevada— 103,674 (80)— — 103,594 
Rodeo Creek, Nevada250 — — (250)— — 
Lone Tree, Nevada— 65,521 — — — 65,521 
Total$52,463 $169,195 $1,762 $(200)$— $223,220 
Depreciation, depletion and amortization on property, plant and equipment during the year ended December 31, 2022 and 2021 include amounts allocated to:
Year ended
December 31,
20222021
Depreciation, depletion and amortization$4,528 $— 
Recorded in exploration, evaluation and pre-development484 198 
Recorded in general and administrative346 163 
Recorded in property maintenance816 — 
Depreciation, depletion and amortization capitalized into properties215 — 
Depreciation, depletion and amortization in discontinued operations— 1,691 
6,389 2,052 
Inventory movement(212)4,306 
Total depletion, depreciation and amortization$6,177 $6,358 
The Company’s leased assets include buildings and vehicles. Right-of-use assets include:
BuildingsEquipmentVehiclesTotal
As at December 31, 2020$91 $— $3 $94 
Additions635 — — 635 
Terminations26 — — 26 
Depreciation118 — 3 121 
As at December 31, 2021582 — — 582 
Additions— 280 — 280 
Depreciation212 128 — 340 
As at December 31, 2022$370 $152 $— $522