Two-character EDGAR code representing the state or country of incorporation.

No definition available.

Name:	dei_EntityIncorporationStateCountryCode
Namespace Prefix:	dei_
Data Type:	dei:edgarStateCountryItemType
Balance Type:	na
Period Type:	duration

- References

No definition available.

+ Details

Name:	devs_BasisOfConsolidationAbstract
Namespace Prefix:	devs_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of returning common shares to Marmota for cancellation in consideration amount.

+ References

No definition available.

+ Details

Name:	devs_CommonShareReturnedForCancellationConsiderationAmount
Namespace Prefix:	devs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

+ Details

Name:	devs_OwnershipPercentageInSubsidiaryByParent
Namespace Prefix:	devs_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

+ Details

Name:	us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=devs_MarmotaSolutionsIncorporatedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=devs_MonroeSequestrationPartnersLLCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_OwnershipAxis=devs_DevvHoldingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_OwnershipAxis=devs_DevvStreamIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_OwnershipAxis=devs_DevvESGStreamingFincoLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Basis of preparation, Subsidiaries (Details) - USD ($)		3 Months Ended	6 Months Ended
Basis of preparation, Subsidiaries (Details) - USD ($)	Oct. 16, 2023	Jan. 31, 2025	Jan. 31, 2025	Nov. 06, 2024	Nov. 10, 2022
Basis of Consolidation [Abstract]
Place of incorporation			A0
Marmota [Member]
Basis of Consolidation [Abstract]
Ownership percentage	10.00%				50.00%
Common shares returned for cancellation consideration amount	$ 19
MSP [Member]
Basis of Consolidation [Abstract]
Ownership percentage				50.00%
Devv Holdings [Member]
Basis of Consolidation [Abstract]
Place of incorporation		A1
Ownership interest in subsidiaries		100.00%	100.00%
DESG [Member]
Basis of Consolidation [Abstract]
Place of incorporation		DE
Ownership interest in subsidiaries		100.00%	100.00%
Finco [Member]
Basis of Consolidation [Abstract]
Place of incorporation		A1
Ownership interest in subsidiaries		100.00%	100.00%