Share Repurchase Maximum Shares Remaining

No definition available.

Name:	drttf_ShareRepurchaseMaximumSharesRemaining
Namespace Prefix:	drttf_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Shares Purchased As Part Of Publicly Announced programs

+ References

No definition available.

+ Details

Name:	drttf_SharesPurchasedAsPartOfPubliclyAnnouncedPrograms
Namespace Prefix:	drttf_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Total Number Of Shares Purchased As Part Of Publicly Announced Programs

+ References

No definition available.

+ Details

Name:	drttf_TotalNumberOfSharesPurchasedAsPartOfPubliclyAnnouncedPrograms
Namespace Prefix:	drttf_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Final price paid per share for the purchase of the targeted number of shares, determined by an average market price over a fixed period of time.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 30
-Name Accounting Standards Codification
-Section 25
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481138/505-30-25-5

+ Details

Name:	us-gaap_AcceleratedShareRepurchasesFinalPricePaidPerShare
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

+ Details

Name:	us-gaap_AcceleratedShareRepurchasesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_AcceleratedShareRepurchasesDateAxis=drttf_JanuaryFirstTwoThousandTwentySix-JanuaryThirtyFirstTwoThousandTwentySixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AcceleratedShareRepurchasesDateAxis=drttf_FebruaryFirstTwoThousandTwentySix-FebruaryTwentyEightTwoThousandTwentySixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AcceleratedShareRepurchasesDateAxis=drttf_MarchFirstTwoThousandTwentySix-MarchThirtyFirstTwoThousandTwentySixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AcceleratedShareRepurchasesDateAxis=drttf_AprilFirstTwoThousandTwentySix-AprilThirtyTwoThousandTwentySixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AcceleratedShareRepurchasesDateAxis=drttf_MayFirstTwoThousandTwentySix-MayThirtyOneTwoThousandTwentySixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AcceleratedShareRepurchasesDateAxis=drttf_JuneFirstTwoThousandTwentySix-JuneThirtyTwoThousandTwentySixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AcceleratedShareRepurchasesDateAxis=drttf_JulyFirstTwoThousandTwentySix-JulyThirtyOneTwoThousandTwentySixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AcceleratedShareRepurchasesDateAxis=drttf_AugustFirstTwoThousandTwentySix-AugustThirtyOneTwoThousandTwentySixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AcceleratedShareRepurchasesDateAxis=drttf_SeptemberFirstTwoThousandTwentySix-SeptemberThirtyTwoThousandTwentySixMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

SHARE REPURCHASES - Schedule of Common Shares Repurchased and Cancelled (Details) - $ / shares	1 Months Ended			9 Months Ended
	Mar. 31, 2026	Feb. 28, 2026	Jan. 31, 2026	Sep. 30, 2026	Aug. 31, 2026	Jul. 31, 2026	Jun. 30, 2026	May 31, 2026	Apr. 30, 2026
Accelerated Share Repurchases [Line Items]
Total number of shares purchased				208,006
Total number of shares purchased as part of publicly announced programs				208,006
Maximum number of share that may yet be purchased under the program				9,385,872
January 1, 2026 - January 31, 2026
Accelerated Share Repurchases [Line Items]
Total number of shares purchased			116,253
Average price paid per share			$ 0.64
Total number of shares purchased as part of publicly announced programs			116,253
Maximum number of share that may yet be purchased under the program			9,477,625
February 1, 2026 - February 28, 2026
Accelerated Share Repurchases [Line Items]
Total number of shares purchased		53,085
Average price paid per share		$ 0.65
Total number of shares purchased as part of publicly announced programs		53,085
Maximum number of share that may yet be purchased under the program		9,424,540
March 1, 2026 - March 31, 2026
Accelerated Share Repurchases [Line Items]
Total number of shares purchased	38,668
Average price paid per share	$ 0.69
Total number of shares purchased as part of publicly announced programs	38,668
Maximum number of share that may yet be purchased under the program	9,385,872
April 1, 2026 - April 30, 2026
Accelerated Share Repurchases [Line Items]
Maximum number of share that may yet be purchased under the program									9,385,872
May 1, 2026 - May 31, 2026
Accelerated Share Repurchases [Line Items]
Maximum number of share that may yet be purchased under the program								9,385,872
June 1, 2026 - June 30, 2026
Accelerated Share Repurchases [Line Items]
Maximum number of share that may yet be purchased under the program							9,385,872
July 1, 2026 - July 31, 2026
Accelerated Share Repurchases [Line Items]
Maximum number of share that may yet be purchased under the program						9,385,872
August 1, 2026 - August 31, 2026
Accelerated Share Repurchases [Line Items]
Maximum number of share that may yet be purchased under the program					9,385,872
September 1, 2026 - September 30, 2026
Accelerated Share Repurchases [Line Items]
Maximum number of share that may yet be purchased under the program				9,385,872