Represents the warrant liability, expiry date.

No definition available.

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Namespace Prefix:	deft_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Warrant liability, Fair Value.

+ References

No definition available.

+ Details

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Namespace Prefix:	deft_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The date on which share-based payment arrangements are granted. [Refer: Types of share-based payment arrangements [domain]]

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
-Number 2
-IssueDate 2025-01-01
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Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Name IFRS
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-Paragraph IG23
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_IG23&doctype=Implementation%20Guidance
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-URIDate 2025-03-27

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
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 2025-01-01
-Paragraph 47
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_47_a_i&doctype=Standard
-URIDate 2025-03-27

+ Details

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

- Definition

The option life of share options granted.

+ References

+ Details

Name:	ifrs-full_DescriptionOfOptionLifeShareOptionsGranted
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:decimalItemType
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

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The exercise price of outstanding share options.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2025-01-01
-Paragraph 45
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_45_d&doctype=Standard
-URIDate 2025-03-27

+ Details

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

- Definition

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

+ References

+ Details

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

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 2
-IssueDate 2025-01-01
-Paragraph 45
-Subparagraph b
-Clause vii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2025-en-r&anchor=para_45_b_vii&doctype=Standard
-URIDate 2025-03-27

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-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
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-Subparagraph b
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_31_b_vii&doctype=Standard
-URIDate 2025-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph 31
-Subparagraph b
-Clause vii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_31_b_vii&doctype=Standard
-URIDate 2025-03-27

+ Details

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

- Definition

The weighted average share price used as input to the option pricing model to calculate the fair value of share options granted. [Refer: Option pricing model [member]; Weighted average [member]]

+ References

+ Details

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Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:perShareItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ifrs-full_ClassesOfFinancialLiabilitiesAxis=deft_WarrantLiabilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Warrant Liability - Schedule of Common Share Purchase Warrants and Compensation Options Outstanding (Details)										12 Months Ended
	Jul. 11, 2025	May 26, 2025	Jan. 28, 2025	Jan. 06, 2025	Jun. 04, 2024	May 21, 2024	May 01, 2024	Apr. 23, 2024	Mar. 12, 2024	Dec. 31, 2025 USD ($) $ / shares	Dec. 31, 2024
Schedule of Common Share Purchase Warrants and Compensation Options Outstanding [Line Items]
Number outstanding & exercisable										34,246,577
Fair Value (in Dollars) \| $										$ 13,599,316
Expected volatility	143.00%	143.00%	150.00%	151.00%	154.50%	154.30%	154.30%	154.30%	149.10%		156.00%
Expected dividend yield	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%		0.00%
Risk-free interest rate	3.03%	2.92%	2.89%	2.96%	4.08%	3.79%	3.63%	3.79%	3.71%		3.20%
Warrant Liability [Member]
Schedule of Common Share Purchase Warrants and Compensation Options Outstanding [Line Items]
Number outstanding & exercisable										34,246,577
Grant date										26-Sep-25
Expiry date										Sep. 26, 2028
Exercise price (in Dollars per share) \| $ / shares										$ 2.63
Fair Value (in Dollars) \| $										$ 13,599,316
Share price (in Dollars per share) \| $ / shares										$ 0.75
Expected volatility										128.10%
Expected life (yrs)										2.75
Expected dividend yield										0.00%
Risk-free interest rate										3.55%