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Exploration and Evaluation Expenditures (Details) |  |  |  |  |  |  |  |  |  |  | 1 Months Ended | 6 Months Ended | 12 Months Ended | 50 Months Ended | 68 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 02, 2020 shares | Jul. 07, 2020 USD ($) | Oct. 02, 2019 shares | Jul. 07, 2019 USD ($) | Oct. 01, 2018 shares | Jul. 07, 2018 USD ($) | Oct. 02, 2017 shares | Jul. 07, 2017 USD ($) | May 02, 2017 USD ($) shares | Aug. 11, 2016 USD ($) | Apr. 23, 2023 USD ($) shares | May 24, 2022 USD ($) | Apr. 23, 2022 USD ($) shares | Jul. 21, 2021 CAD ($) shares | May 24, 2021 USD ($) shares | May 21, 2021 shares | Apr. 23, 2021 USD ($) shares | Dec. 29, 2020 USD ($) | May 24, 2020 USD ($) shares | Apr. 23, 2020 USD ($) shares | Dec. 29, 2019 USD ($) | May 24, 2019 USD ($) shares | Apr. 23, 2019 USD ($) shares | Dec. 29, 2018 USD ($) | Oct. 23, 2018 USD ($) | May 24, 2018 USD ($) shares | Apr. 23, 2018 USD ($) shares | Jan. 28, 2018 USD ($) | Nov. 24, 2017 USD ($) shares | Dec. 31, 2021 USD ($) | Dec. 31, 2021 CAD ($) | Dec. 31, 2020 CAD ($) | Jun. 30, 2021 CAD ($) | Oct. 02, 2020 USD ($) shares | Apr. 23, 2023 USD ($) shares
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition costs |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 24,876,036 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 24,876,036 | $ 22,027,088 | $ 22,027,088 |  |
Acquisition of property |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,385,541 |  | 4,843,476 |  |
Effect of movement in foreign exchange rates |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 570,017 |  | (1,994,528) |  |
Acquisition costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 24,876,036 |  |
ExplorationAndEvaluationAssetsExplorationCosts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 26,831,594 |  |  |  |
Exploration Costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,921,260 | 6,921,260 |  |
Other exploration costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 191,402 |  | 419,610 |  |
Effect of movement in foreign exchange rates |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 153,850 |  | (626,711) |  |
Exploration Costs |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 6,714,159 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,714,159 |  |  |  |
Exploration Costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,059,411 |  | 6,714,159 |  |
Tangible exploration and evaluation assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 33,891,005 |  | 31,590,194 |  |
Purchase of exploration and evaluation assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,554,435 | 1,094,953 |  |  |
Nevada mining [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of common shares issued for exploration and evaluation assets (in shares) | shares | 500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
National chloride company of america [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of common shares issued for exploration and evaluation assets (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 200,000 |  | 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
California property [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition costs |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 12,768,549 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12,768,549 | 9,753,766 | 9,753,766 |  |
Acquisition of property |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 115,611 |  | 3,897,975 |  |
Effect of movement in foreign exchange rates |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 292,582 |  | (883,192) |  |
Acquisition costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12,768,549 |  |
ExplorationAndEvaluationAssetsExplorationCosts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13,176,742 |  |  |  |
Exploration Costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,554,718 | 4,554,718 |  |
Other exploration costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,019 |  | 10,757 |  |
Effect of movement in foreign exchange rates |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 95,164 |  | (412,424) |  |
Exploration Costs |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,153,051 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,153,051 |  |  |  |
Exploration Costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,259,234 |  | 4,153,051 |  |
Tangible exploration and evaluation assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 17,435,976 |  | 16,921,600 |  |
Arkansas property [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition costs |  |  |  |  |  |  |  |  |  |  |  |  |  | 12,107,487 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12,107,487 | 12,273,322 | 12,273,322 |  |
Acquisition of property |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,269,930 |  | 945,501 |  |
Effect of movement in foreign exchange rates |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 277,435 |  | (1,111,336) |  |
Acquisition costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12,107,487 |  |
ExplorationAndEvaluationAssetsExplorationCosts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13,654,852 |  |  |  |
Exploration Costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,366,542 | 2,366,542 |  |
Other exploration costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 180,383 |  | 408,853 |  |
Effect of movement in foreign exchange rates |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 58,686 |  | (214,287) |  |
Exploration Costs |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,561,108 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,561,108 |  |  |  |
Exploration Costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,800,177 |  | 2,561,108 |  |
Tangible exploration and evaluation assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 16,455,029 |  | $ 14,668,594 |  |
T Y Sons Right Title And Interest In A Property Option Agreement [Member] | Nevada mining [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of exploration and evaluation assets |  | $ 50,000 |  | $ 50,000 |  | $ 50,000 |  | $ 50,000 |  | $ 125,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 325,000 |
Number of common shares issued for exploration and evaluation assets (in shares) | shares | 500,000 |  | 500,000 |  | 500,000 |  | 500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,500,000 |
Lease property [member] | National chloride company of america [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of exploration and evaluation assets |  |  |  |  |  |  |  |  | $ 25,000 |  |  |  |  |  | $ 100,000 |  |  |  | $ 100,000 |  |  | $ 100,000 |  |  |  | $ 100,000 |  |  | $ 50,000 |  |  |  |  |  |
Number of common shares issued for exploration and evaluation assets (in shares) | shares |  |  |  |  |  |  |  |  | 1,700,000 |  |  |  |  |  | 200,000 |  |  |  | 200,000 |  |  | 200,000 |  |  |  | 200,000 |  |  | 100,000 |  |  |  |  |  |
Lease property [member] | National chloride company of america [member] | Successful completion of a bankable feasibility study [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of exploration and evaluation assets |  |  |  |  |  |  |  |  |  |  |  | $ 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease property [member] | National chloride company of america [member] | Successful completion of a pre-feasibility study [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of exploration and evaluation assets |  |  |  |  |  |  |  |  |  |  |  | 250,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease property [member] | National chloride company of america [member] | Major purchases of assets [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of exploration and evaluation assets |  |  |  |  |  |  |  |  | $ 1,825,000 |  |  | $ 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property in exploration and option agreement [member] | TETRA technologies, inc. [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of exploration and evaluation assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 200,000 |  |  | $ 200,000 |  |  | $ 200,000 |  | $ 100,000 |  | $ 100,000 |  |  |  |  |  |  |  |
Number of common shares issued for exploration and evaluation assets (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 400,000 |  |  | 400,000 |  |  | 400,000 |  |  |  | 200,000 |  |  |  |  |  |  |  | 3,400,000
Property in exploration and option agreement [member] | TETRA technologies, inc. [member] | Successful completion of a bankable feasibility study [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of exploration and evaluation assets |  |  |  |  |  |  |  |  |  |  | $ 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property in exploration and option agreement [member] | TETRA technologies, inc. [member] | Successful completion of a pre-feasibility study [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of exploration and evaluation assets |  |  |  |  |  |  |  |  |  |  | $ 500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of common shares issued for exploration and evaluation assets (in shares) | shares |  |  |  |  |  |  |  |  |  |  | 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property in exploration and option agreement [member] | TETRA technologies, inc. [member] | Major purchases of assets [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of exploration and evaluation assets |  |  |  |  |  |  |  |  |  |  |  |  | $ 200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,700,000
Number of common shares issued for exploration and evaluation assets (in shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  | 400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Property in option agreement [member] | Vendor [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
IfrsStatementLineItems [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Purchase of exploration and evaluation assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 750,000 |  |  | $ 700,000 |  |  | $ 600,000 |  |  |  | $ 500,000 |  |  |  |  |  |  |
Annual payments pursuant to agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000,000 |  |  |  |  |

X
- Definition The cash outflow for the purchase of exploration and evaluation assets. [Refer: Exploration and evaluation assets [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_16&doctype=Standard -URIDate 2021-03-24 + Details
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X
- Definition The amount of exploration and evaluation assets recognised as tangible assets in accordance with the entity's accounting policy. [Refer: Exploration and evaluation assets [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 6 -IssueDate 2021-01-01 -Paragraph 25 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=6&code=ifrs-tx-2021-en-r&anchor=para_25&doctype=Standard -URIDate 2021-03-24 + Details
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X
- Definition Amount of annual payments pursuant to the agreement. + References No definition available. + Details
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- Definition Carrying amoutn of acquisition costs on exploration and evaluation assets. + References No definition available. + Details
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Namespace Prefix: | sli_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Definition The foreign exchange effect of acquisitioin costs on exploration and evaluation assets. + References No definition available. + Details
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Namespace Prefix: | sli_
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- Definition Addition to acquisition costs on exploration and evaluation assets from acquisition for property. + References No definition available. + Details
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Namespace Prefix: | sli_
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