Antidilutive securities excluded from computation of earnings per share amount1.

No definition available.

Name:	ITMSF_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount1
Namespace Prefix:	ITMSF_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Cash paid to employees and directors for the surrender of vested awards.

+ References

No definition available.

+ Details

Name:	ITMSF_CashPaidToEmployeesAndDirectorsForSurrenderOfVestedAwards
Namespace Prefix:	ITMSF_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Cash paid to employees for surrender of vested awards.

+ References

No definition available.

+ Details

Name:	ITMSF_CashPaidToEmployeesForSurrenderOfVestedAwards
Namespace Prefix:	ITMSF_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Fair value of shares issued.

+ References

No definition available.

+ Details

Name:	ITMSF_FairValueOfSharesIssued
Namespace Prefix:	ITMSF_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

Name:	ITMSF_IfrsStatementLineItems
Namespace Prefix:	ITMSF_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Increase decrease of warrants equity.

+ References

No definition available.

+ Details

Name:	ITMSF_IncreaseDecreaseOfWarrantsEquity
Namespace Prefix:	ITMSF_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Number of other equity instruments issued in share based payment arrangement.

+ References

No definition available.

+ Details

Name:	ITMSF_NumberOfOtherEquityInstrumentsIssuedInSharebasedPaymentArrangement
Namespace Prefix:	ITMSF_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of other equity instruments surrenders in sharebased payment arrangement.

+ References

No definition available.

+ Details

Name:	ITMSF_NumberOfOtherEquityInstrumentsSurrendersInSharebasedPaymentArrangement
Namespace Prefix:	ITMSF_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares issued exercise of warrants.

+ References

No definition available.

+ Details

Name:	ITMSF_NumberOfSharesIssuedExerciseOfWarrants
Namespace Prefix:	ITMSF_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares issued in private placement.

+ References

No definition available.

+ Details

Name:	ITMSF_NumberOfSharesIssuedInPrivatePlacement
Namespace Prefix:	ITMSF_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares issued issuance costs.

+ References

No definition available.

+ Details

Name:	ITMSF_NumberOfSharesIssuedIssuanceCosts
Namespace Prefix:	ITMSF_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares remaining for future issuance.

+ References

No definition available.

+ Details

Name:	ITMSF_NumberOfSharesRemainingForFutureIssuance
Namespace Prefix:	ITMSF_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Warrants issued.

+ References

No definition available.

+ Details

Name:	ITMSF_NumberOfWarrantsIssued
Namespace Prefix:	ITMSF_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Shares reserved for issue under options and contracts for sale of shares total.

+ References

No definition available.

+ Details

Name:	ITMSF_SharesReservedForIssueUnderOptionsAndContractsForSaleOfSharesTotal
Namespace Prefix:	ITMSF_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Adjustments for share-based payments to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2024-01-01
-Paragraph 20
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_20_b&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_AdjustmentsForSharebasedPayments
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The expected volatility of the share price used to calculate the fair value of the share options granted. Expected volatility is a measure of the amount by which a price is expected to fluctuate during a period. The measure of volatility used in option pricing models is the annualised standard deviation of the continuously compounded rates of return on the share over a period of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 47
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_47_a_i&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_DescriptionOfExpectedVolatilityShareOptionsGranted
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The implied yield currently available on zero-coupon government issues of the country in whose currency the exercise price for share options granted is expressed, with a remaining term equal to the expected term of the option being valued (based on the option's remaining contractual life and taking into account the effects of expected early exercise). [Refer: Government [member]]

+ References

+ Details

Name:	ifrs-full_DescriptionOfRiskFreeInterestRateShareOptionsGranted
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The percentage of an expected dividend used to calculate the fair value of share options granted.

+ References

+ Details

Name:	ifrs-full_ExpectedDividendAsPercentageShareOptionsGranted
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The increase (decrease) in equity resulting from the exercise of warrants.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 106
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_106_d&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_IncreaseDecreaseThroughExerciseOfWarrantsEquity
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The number of share options outstanding in a share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 45
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45_d&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 45
-Subparagraph b
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45_b_i&doctype=Standard
-URIDate 2024-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2024-01-01
-Paragraph 45
-Subparagraph b
-Clause vi
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2024-en-r&anchor=para_45_b_vi&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_NumberOfOutstandingShareOptions
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of shares issued by the entity.

+ References

+ Details

Name:	ifrs-full_NumberOfSharesIssued
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The number of shares that have been authorised and issued, reduced by treasury shares held. [Refer: Treasury shares]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 79
-Subparagraph a
-Clause iv
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_79_a_iv&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_NumberOfSharesOutstanding
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The nominal value per share.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 79
-Subparagraph a
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_79_a_iii&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_ParValuePerShare
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow from the issuing of ordinary shares. [Refer: Ordinary shares [member]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2024-01-01
-Paragraph 17
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_17&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_ProceedsFromIssueOfOrdinaryShares
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from issuing shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2024-01-01
-Paragraph 17
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_17_a&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_ProceedsFromIssuingShares
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The amount of cost related to the issuance of shares.

+ References

+ Details

Name:	ifrs-full_ShareIssueRelatedCost
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The number of shares reserved for issue under options and contracts for the sale of shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 79
-Subparagraph a
-Clause vii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_79_a_vii&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_SharesReservedForIssueUnderOptionsAndContractsForSaleOfShares
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The weighted average remaining contractual life of outstanding share options. [Refer: Weighted average [member]]

+ References

+ Details

Name:	ifrs-full_WeightedAverageRemainingContractualLifeOfOutstandingShareOptions2019
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=ifrs-full_ShareOptionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=ifrs-full_RestrictedShareUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_TypesOfAntidilutiveInstrumentsAxis=ifrs-full_ShareOptionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_TypesOfAntidilutiveInstrumentsAxis=ifrs-full_RestrictedShareUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_TypesOfAntidilutiveInstrumentsAxis=ifrs-full_WarrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ComponentsOfEquityAxis=ifrs-full_WarrantReserveMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=ITMSF_ClassACommonSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=ITMSF_PrivatePlacementsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Share capital (Details Narrative) $ / shares in Units, $ in Thousands		1 Months Ended			3 Months Ended					12 Months Ended
	Jan. 04, 2024 USD ($) $ / shares shares	Sep. 30, 2025 USD ($) shares	May 31, 2025 USD ($) shares	Feb. 28, 2025 USD ($) shares	Dec. 31, 2025 USD ($) shares	Sep. 30, 2025 USD ($) shares	Dec. 31, 2024 USD ($) shares	Sep. 30, 2024 USD ($) shares	Mar. 31, 2024 USD ($) shares	Dec. 31, 2025 USD ($) shares	Dec. 31, 2024 USD ($) shares	Dec. 31, 2021 shares	Sep. 30, 2025 $ / shares shares	Feb. 28, 2025 $ / shares shares	Sep. 30, 2024 $ / shares	Jan. 04, 2024 $ / shares	Dec. 31, 2023 shares	Jun. 29, 2023 shares	Jun. 29, 2021 shares	Dec. 31, 2020 shares	Dec. 31, 2018 shares
IfrsStatementLineItems [Line Items]
Exercise of warrants, shares			109,545		1,243,000	2,380,554	3,736,400	228,000	321,735
Exercise of warrants \| $			$ 75		$ 857	$ 2,188	$ 1,785	$ 101	$ 155
Issuance costs \| $		$ 2,460	$ 2		$ 17		$ 15			$ 2,705	$ 141
Proceeds from share issue \| $		20,653								$ 29,345	$ 2,445
Purchase price per share \| $ / shares													$ 3.05
Warrants issued													575,046
Fair value of warrants \| $		$ 577
Expected volatility		80.67%
Risk free interest rate		4.50%
Expected dividend yield		0.00%
Number of shares issued							53,618,357				53,618,357						41,535,755
Number of outstanding share options							699,442				699,442						794,443
Share based compensation \| $										$ 273	$ 398
Cash paid to employees for the surrender of vested awards \| $										779
Number of shares vested			609,866
Cash paid to employees and directors for the surrender of vested awards \| $			$ 1,001
Share options [member]
IfrsStatementLineItems [Line Items]
Share based compensation \| $
Restricted share units [member]
IfrsStatementLineItems [Line Items]
Number of shares issued													3,363,631
Share based compensation \| $										$ 273	$ 398
Share issue related cost																		1,300,000	997,253
Total shares reserved for issuance																		5,660,884
Number of shares outstanding					3,672,415		3,779,623			3,672,415	3,779,623
Number of shares issued										502,658	100,000
Number of shares vested										609,866
Share options [member]
IfrsStatementLineItems [Line Items]
Potentially dilute earnings per share										0	310,720
Restricted share units [member]
IfrsStatementLineItems [Line Items]
Potentially dilute earnings per share										3,672,415	1,259,268
Warrants [member]
IfrsStatementLineItems [Line Items]
Potentially dilute earnings per share										604,918	1,780,084
Number of shares issued										905,172	120,000
Warrant reserve [member]
IfrsStatementLineItems [Line Items]
Expected volatility	79.00%
Risk free interest rate	3.80%
Expected dividend yield
Expected term	2 years
Class A common shares [member]
IfrsStatementLineItems [Line Items]
Exercise of warrants, shares										3,733,099	4,286,135
Exercise of warrants \| $										$ 3,120	$ 2,041
Issuance costs \| $										$ 3,549	$ 254
Private placement , shares		9,584,100								15,086,208	7,466,568
Purchase price per share \| (per share)	$ 0.60												$ 3.00
Issuance costs, shares											329,899
Number of shares issued					72,437,664		53,618,357			72,437,664	53,618,357	50,000					41,535,755			125,070	872,183
Number of shares remaining for future issuance												941,216
Private placements [member]
IfrsStatementLineItems [Line Items]
Issuance costs \| $	$ 26			$ 1,070				213
Proceeds from share issue \| $				$ 8,692				$ 2,408
Private placement , shares				5,502,108				7,346,568
Purchase price per share \| $ / shares														$ 2.25	$ 0.45	$ 0.50
Warrants issued														330,126
Fair value of warrants \| $				$ 267
Risk free interest rate				4.50%
Expected dividend yield				0.00%
Issuance costs, shares								329,899
Number of shares issued	120,000
Proceeds from issue of shares \| $	$ 37
Fair value of shares issued \| $	$ 10
Private placements [member] \| Bottom of range [member]
IfrsStatementLineItems [Line Items]
Purchase price per share \| $ / shares														$ 2.01
Expected volatility				75.95%
Private placements [member] \| Top of range [member]
IfrsStatementLineItems [Line Items]
Purchase price per share \| $ / shares														$ 2.51
Expected volatility				76.58%