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v3.23.2

Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2021
Property, Plant and Equipment [Line Items] |  |  |  |  |
Short-term investment maturity period |  |  | 3 months |  |
Basic weighted average number of common shares outstanding | 19,918,677 | 15,803,746 | 19,793,265 | 15,088,662 |
Diluted weighted average number of common shares outstanding | 19,918,677 | 15,803,746 | 20,019,461 | 15,088,662 |
Exploration License Impairments | $ 0 | $ 0 | $ 0 | $ 0 |
Fair Value, Recurring [Member] |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Fair value, net asset (liability) | $ 0 |  | $ 0 |  | $ 0
Minimum [Member] |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Property and Equipment, estimated useful life | 3 years |  | 3 years |  |
Maximum [Member] |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |
Property and Equipment, estimated useful life | 30 years |  | 30 years |  |

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