Per unit fair value of a cryptocurrency or other digital asset held by the entity as of the reporting date,

No definition available.

Name:	devs_CryptoAssetFairValuePerUnit
Namespace Prefix:	devs_
Data Type:	srt-types:perUnitItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of cryptocurrency units earned through staking or validation activities during the reporting period.

+ References

No definition available.

+ Details

Name:	devs_CryptoAssetNumberOfUnitsEarnedFromStaking
Namespace Prefix:	devs_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of cryptocurrency or digital asset units held by the entity at the reporting date.

+ References

No definition available.

+ Details

Name:	devs_CryptoAssetNumberOfUnitsHeld
Namespace Prefix:	devs_
Data Type:	xbrli:decimalItemType
Balance Type:	na
Period Type:	instant

- References

No definition available.

+ Details

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

- Definition

Amount of unrealized loss incurred from revaluation of cryptocurrencies holding during the period.

+ References

No definition available.

+ Details

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

- Definition

Income earned by locking cryptocurrency assets to provide validation services that support and secure a blockchain network.

+ References

No definition available.

+ Details

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

- Definition

Fair value of crypto asset. Excludes crypto asset held for platform user.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 60
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476162/350-60-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 60
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476162/350-60-50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 60
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476162/350-60-50-3

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 60
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476163/350-60-45-1

+ Details

Name:	us-gaap_CryptoAssetFairValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of increase in crypto asset from purchase. Excludes crypto asset held for platform user.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 60
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147476162/350-60-50-3

+ Details

Name:	us-gaap_CryptoAssetPurchase
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

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

- Definition

Amount of cash restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(17))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 45
-Paragraph 5
-SubTopic 210
-Topic 954
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477220/954-210-45-5

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-8

+ Details

Name:	us-gaap_RestrictedCashNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	srt_CryptoAssetAxis=devs_BitcoinMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CryptoAssetAxis=devs_SolanaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Cryptocurrencies (Details)	3 Months Ended
Cryptocurrencies (Details)	Oct. 31, 2025 USD ($) SOLANA BITCOIN $ / SOLANA $ / BITCOIN	Oct. 31, 2024 USD ($)	Jul. 31, 2025 USD ($)
Crypto Asset [Roll Forward]
Beginning Balance	$ 0
Purchases	5,125,000
Staking income earned	14,334	$ 0
Fair value loss	(423,481)	$ 0
Ending Balance	4,715,853
Crypto Currencies Asset [Abstract]
Cash held in bitgo account	1,280,000		$ 6,405,000
Bitcoin [Member]
Crypto Asset [Roll Forward]
Beginning Balance	0
Purchases	2,562,500
Staking income earned	0
Fair value loss	(127,172)
Ending Balance	$ 2,435,328
Crypto Currencies Asset [Abstract]
Quantity of cryptocurrency held \| BITCOIN	22.229041
Fair value of cryptocurrency per unit \| $ / BITCOIN	109,556.16
Solana [Member]
Crypto Asset [Roll Forward]
Beginning Balance	$ 0
Purchases	2,562,500
Staking income earned	14,334
Fair value loss	(296,309)
Ending Balance	$ 2,280,525
Crypto Currencies Asset [Abstract]
Quantity of cryptocurrency held \| SOLANA	12,181.64
Fair value of cryptocurrency per unit \| $ / SOLANA	187.21
Cryptocurrency earned from staking \| SOLANA	70.66