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Property and Equipment - Summary of Detailed Information about Property, Plant and Equipment (Detail) - CAD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year $ 7,579  
Balance at end of year 6,619 $ 7,579
At Cost [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 15,554 13,333
Additions 1,297 2,313
Disposals (494) (92)
Balance at end of year 16,357 15,554
Accumulated Depreciation [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 7,975 5,745
Depreciation 2,145 2,290
Disposals (382) (60)
Balance at end of year 9,738 7,975
Computer Equipment [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 81  
Balance at end of year 70 81
Computer Equipment [member] | At Cost [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 451 417
Additions 46 34
Balance at end of year 497 451
Computer Equipment [member] | Accumulated Depreciation [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 370 292
Depreciation 57 78
Balance at end of year 427 370
Software [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 219  
Balance at end of year 312 219
Software [member] | At Cost [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 1,060 939
Additions 295 121
Balance at end of year 1,355 1,060
Software [member] | Accumulated Depreciation [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 841 651
Depreciation 202 190
Balance at end of year 1,043 841
Field Equipment and Vehicles [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 3,061  
Balance at end of year 2,465 3,061
Field Equipment and Vehicles [member] | At Cost [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 6,822 6,891
Reclassification (275)  
Additions 98 23
Disposals   (92)
Balance at end of year 6,645 6,822
Field Equipment and Vehicles [member] | Accumulated Depreciation [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 3,761 2,964
Reclassification (193)  
Depreciation 612 857
Disposals   (60)
Balance at end of year 4,180 3,761
Office Furniture and Leasehold Improvements [Member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 3,722  
Balance at end of year 3,665 3,722
Office Furniture and Leasehold Improvements [Member] | At Cost [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 5,142 3,007
Reclassification 275  
Additions 858 2,135
Disposals (494)  
Balance at end of year 5,781 5,142
Office Furniture and Leasehold Improvements [Member] | Accumulated Depreciation [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 1,420 710
Reclassification 193  
Depreciation 885 710
Disposals (382)  
Balance at end of year 2,116 1,420
Road [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 496  
Balance at end of year 107 496
Road [member] | At Cost [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 2,079 2,079
Balance at end of year 2,079 2,079
Road [member] | Accumulated Depreciation [member]    
Disclosure of detailed information about property, plant and equipment [line items]    
Balance at beginning of year 1,583 1,128
Depreciation 389 455
Balance at end of year $ 1,972 $ 1,583