Schedule of operating activities (Details) - SEK (kr) kr in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025	Dec. 31, 2024
Notes and other explanatory information [abstract]
Depreciation	kr 68,822	kr 55,890	kr 130,802	kr 129,022
Depreciation of right-of-use assets	53,594	45,774	96,694	96,940
Amortization	1,020	312	312	1,056
Impairments	9	(23)	5,321
Capital gains from the sale of non-current assets (see Note 17)	(32,543)			(8,985)
Share-based payment expense	249,332	152	15,629	10,171
Unrealized exchange differences	7,891	(30)	77,903	(1,926)
Finance income			(5,080)	(65,615)
Finance costs	91,283	544,901	588,646	224,345
Provisions	(6,403)		12,332
Fair value loss/(gain) on financial assets or liabilities measured at fair value through profit or loss			129,262	(51,832)
Share of results of joint venture	(270)	(192)	(1,430)	(282)
Total non-cash adjustments	487,705	645,328	1,050,391	332,894
(Increase)/decrease in trade receivables	(2,171)	4,802	10,571	23,153
(Increase)/decrease in prepaid expenses	(7,174)	(1,070)	3,899	(5,152)
(Increase)/decrease in accrued income	(33,451)	8,787	(1,789)	(7,964)
(Increase)/decrease in other receivables	10,907	15,594	(22,174)	173,091
Increase/(decrease) in trade and other payables	163,467	(53,129)	(52,186)	96,414
Increase/(decrease) in accrued expense	16,855	10,069	69,950	(15,219)
Increase/(decrease) in deferred income	(15,484)	(10,499)	3,193	9,395
Increase/(decrease) in other liabilities	10,197	55,005	30,577	11,831
Total net changes in working capital	143,146	29,559	42,041	285,549
Capital loss from the sale of property, plant and equipment	1,329
Listing costs (see Note 21)	636,267
Finance income	(247)	(127)	(6,483)	(65,615)
Fair value gains on financial liabilities measured at fair value	kr (582,379)	kr (1,329)	kr 129,262	kr (51,832)

Adjustments for increase decrease in accrued expense.

No definition available.

Name:	ENRD_AdjustmentsForIncreaseDecreaseInAccruedExpense
Namespace Prefix:	ENRD_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Depreciation of rightofuse assets.

+ References

No definition available.

+ Details

Name:	ENRD_DepreciationOfRightofuseAssets
Namespace Prefix:	ENRD_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Fair value lossgain on financial assets or liabilities measured at fair value through profit or loss.

+ References

No definition available.

+ Details

Name:	ENRD_FairValueLossgainOnFinancialAssetsOrLiabilitiesMeasuredAtFairValueThroughProfitOrLoss
Namespace Prefix:	ENRD_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Listing costs.

+ References

No definition available.

+ Details

Name:	ENRD_ListingCosts
Namespace Prefix:	ENRD_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Net change in working capital.

+ References

No definition available.

+ Details

Name:	ENRD_NetChangeInWorkingCapital
Namespace Prefix:	ENRD_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Total noncash adjustments.

+ References

No definition available.

+ Details

Name:	ENRD_TotalNoncashAdjustments
Namespace Prefix:	ENRD_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 20
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&anchor=para_20&doctype=Standard
-URIDate 2025-03-27

+ Details

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

- Definition

Adjustments for the decrease (increase) in accrued income including contract assets to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Accrued income including contract assets; Profit (loss)]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 20
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&anchor=para_20_a&doctype=Standard
-URIDate 2025-03-27

+ Details

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

- References

+ Details

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

- Definition

Adjustments for the decrease (increase) in prepaid expenses to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Current prepaid expenses; Profit (loss)]

+ References

+ Details

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

- Definition

Adjustments for decrease (increase) in trade and other receivables to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Trade and other receivables; Profit (loss)]

+ References

+ Details

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

- References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 20
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&anchor=para_20_c&doctype=Standard
-URIDate 2025-03-27

+ Details

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

- References

+ Details

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

- Definition

Adjustments for gain (loss) on disposals of property, plant and equipment to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss); Property, plant and equipment; Disposals, property, plant and equipment]

+ References

+ Details

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

- Definition

Adjustments for gains (losses) on disposals of financial assets in the scope of IFRS 9 to reconcile profit (loss) to net cash flow from (used in) operating activities.

+ References

+ Details

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

- References

+ Details

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

- Definition

Adjustments for the increase (decrease) in deferred income including contract liabilities to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Deferred income including contract liabilities; Profit (loss)]

+ References

+ Details

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

- Definition

Adjustments for increase (decrease) in other liabilities to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Other liabilities; Profit (loss)]

+ References

+ Details

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

- Definition

Adjustments for increase (decrease) in trade and other payables to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Trade and other payables; Profit (loss)]

+ References

+ Details

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

- References

+ Details

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

- References

+ Details

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

- References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Paragraph 20
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&anchor=para_20_b&doctype=Standard
-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Name IAS
-Number 7
-IssueDate 2025-01-01
-Section A Statement of cash flows for an entity other than a financial institution
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2025-en-r&doctype=Illustrative%20Examples&dita_xref=IAS07_IE_A_TI
-URIDate 2025-03-27

+ Details

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

- References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 112
-Subparagraph c
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_112_c&doctype=Standard
-URIDate 2025-03-27

+ Details

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

- References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 85
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_85&doctype=Standard
-URIDate 2025-03-27

+ Details

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

- Definition

The gains (losses) on financial liabilities at fair value through profit or loss. [Refer: Financial liabilities at fair value through profit or loss]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2025-01-01
-Paragraph 20
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_20_a_i&doctype=Standard
-URIDate 2025-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Note Effective 2027-01-01
-Name IFRS
-Number 19
-IssueDate 2025-01-01
-Paragraph 56
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_56_a_i&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 56
-Subparagraph a
-Clause i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_56_a_i&doctype=Standard
-URIDate 2025-03-27

+ Details

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

- References

No definition available.

+ Details

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

- References

+ Details

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