XML 116 R88.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Mineral Properties and Exploration and Evaluation Assets (Narrative) (Details) $ in Thousands |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Aug. 02, 2017 USD ($) shares | Jul. 28, 2016 CAD ($) shares | Dec. 31, 2016 USD ($) claim | Dec. 31, 2016 USD ($) ha | Dec. 31, 2016 USD ($) a | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |  |  |
Purchase of mining assets |  |  |  |  |  | $ 47,060 | $ 40,229
Expense arising from exploration for and evaluation of mineral resources |  |  |  |  |  | 1,534 | 177
Warrants exercise price issued for nonbusiness combination |  | 6.01 |  |  |  |  |
Lindero Project [member] |  |  |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |  |  |
Common shares of acquirer transferred | shares |  | 14,569,045 |  |  |  |  |
Warrants of acquirer transferred | shares |  | 1,514,677 |  |  |  |  |
Tlacolula Property [member] |  |  |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |  |  |
Purchase of mining assets | $ 150 |  |  |  |  |  |
Fair value of consideration transferred to purchase asset | $ 1,328 |  |  |  |  |  |
Number of instruments or interests issued or issuable | shares | 239,385 |  |  |  |  |  |
Equity interests of acquirer | $ 1,128 |  |  |  |  |  |
NSR royalty, percentage | 2.00% |  |  |  |  |  |
Half of NSR royalty purchae price, per agreement | $ 1,500 |  |  |  |  |  |
Expense arising from exploration for and evaluation of mineral resources |  |  |  |  |  | $ 158 |
Northwest Nevada Initiative [member] |  |  |  |  |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |  |  |  |  |
Number of mineral claims acquired | claim |  |  | 6,756 |  |  |  |
Area of property |  |  |  | 96,773 | 239,128 |  |
Contingent consideration of option agreement cash payment amount |  |  | $ 2,300 | $ 2,300 | $ 2,300 |  | 2,300
Contingent consideration of option agreement cash payment and share issuable amount |  |  | 4,100 | 4,100 | 4,100 |  | 4,100
Contractual capital commitments |  |  | $ 2,000 | $ 2,000 | $ 2,000 |  | $ 2,000

X
- Definition Area of property. + References No definition available. + Details
Name: | fsm_AreaOfProperty
Namespace Prefix: | fsm_
Data Type: | num:areaItemType
Balance Type: | na
Period Type: | duration

X
- Definition Contingent consideration of option agreement cash payment amount. + References No definition available. + Details
Name: | fsm_ContingentConsiderationOfOptionAgreementCashPaymentAmount
Namespace Prefix: | fsm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Contingent consideration of option agreement cash payment and share issuable amount. + References No definition available. + Details
Name: | fsm_ContingentConsiderationOfOptionAgreementCashPaymentAndShareIssuableAmount
Namespace Prefix: | fsm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value of consideration transferred to purchase asset. + References No definition available. + Details
Name: | fsm_FairValueOfConsiderationTransferredToPurchaseAsset
Namespace Prefix: | fsm_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Net smelter return (NSR) royalty, percentage. + References No definition available. + Details
Name: | fsm_NetSmelterReturnRoyaltyPercentage
Namespace Prefix: | fsm_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of instruments or interests issued or issuable in nonbusiness combination. + References No definition available. + Details
Name: | fsm_NumberOfInstrumentsOrInterestsIssuedOrIssuableInNonbusinessCombination
Namespace Prefix: | fsm_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of mineral claims acquired during the period. + References No definition available. + Details
Name: | fsm_NumberOfMineralClaimsAcquiredDuringPeriod
Namespace Prefix: | fsm_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of warrants issued or issuable in nonbusiness combination. + References No definition available. + Details
Name: | fsm_NumberOfWarrantsIssuedOrIssuableInNonbusinessCombination
Namespace Prefix: | fsm_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Pruchase and sale agreement net smelter return purchase price of half of royalty percentage. + References No definition available. + Details
Name: | fsm_PruchaseAndSaleAgreementNetSmelterReturnPurchasePriceOfHalfOfRoyaltyPercentage
Namespace Prefix: | fsm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Warrants exercise price issued for nonbusiness combination. + References No definition available. + Details
Name: | fsm_WarrantsExercisePriceIssuedForNonbusinessCombination
Namespace Prefix: | fsm_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of capital commitments for which the entity has entered into a contract. [Refer: Capital commitments] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_112_c&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_ContractualCapitalCommitments
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfPropertyPlantAndEquipmentLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The fair value, at the acquisition date, of equity interests of the acquirer transferred as consideration in a business combination. [Refer: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2017-01-01 -Paragraph B64 -Subparagraph f -Clause iv -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2017-03-01&anchor=para_B64_f_iv&doctype=Appendix&seq=2 -URIDate 2017-03-09 + Details
Name: | ifrs-full_EquityInterestsOfAcquirer
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of expense arising from the search for mineral resources, including minerals, oil, natural gas and similar non-regenerative resources after the entity has obtained legal rights to explore in a specific area, as well as the determination of the technical feasibility and commercial viability of extracting the mineral resource. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 6 -IssueDate 2017-01-01 -Paragraph 24 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=6&date=2017-03-01&anchor=para_24_b&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of instruments or interests issued or issuable at acquisition date for equity interests of the acquirer transferred as consideration in a business combination. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2017-01-01 -Paragraph B64 -Subparagraph f -Clause iv -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2017-03-01&anchor=para_B64_f_iv&doctype=Appendix&seq=2 -URIDate 2017-03-09 + Details
Name: | ifrs-full_NumberOfInstrumentsOrInterestsIssuedOrIssuable
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash outflow for the purchase of mining assets. [Refer: Mining assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2017-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_16&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_PurchaseOfMiningAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=fsm_LinderoProjectMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=fsm_TlacolulaPropertyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=fsm_NorthwestNevadaInitiativeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |