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Adjustments for increase (decrease) in accrued expenses to reconcile profit (loss) to net cash flow from (used in) operating activities.

No definition available.

Name:	aciu_AdjustmentsForIncreaseDecreaseInAccruedExpenses
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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Adjustments for increase (decrease) in current contract liabilities

No definition available.

Name:	aciu_AdjustmentsForIncreaseDecreaseInCurrentContractLiabilities
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Adjustments for increase (decrease) in non-current contract liabilities

No definition available.

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The cash outflow or inflow for deposit of rent.

No definition available.

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No definition available.

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Payments for share issue costs and stamp duty associated with public offerings, classified as financing activities

No definition available.

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Payments for share issue costs associated with sale of treasury shares in public offerings, classified as financing activities

No definition available.

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Payments (proceeds) from purchases (sales) of short-term financial assets, classified as investing activities

No definition available.

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Proceeds from issuance of shares through equity plans, net of transaction costs

No definition available.

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Proceeds from sale of treasury shares in public offerings, net of underwriting fees and transaction costs

No definition available.

Name:	aciu_ProceedsFromSaleOfTreasurySharesInPublicOfferingsNetOfUnderwritingFeesAndTransactionCosts
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Amount of property plant and equipment acquired through noncash investing activities.

No definition available.

Name:	aciu_PurchaseOfPropertyPlantAndEquipmentClassifiedAsNoncashInvestingActivities
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No definition available.

Name:	aciu_SupplementalNonCashActivityAbstract
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Transaction costs associated with the sale of treasury shares in public offering recorded in Accrued expenses

No definition available.

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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)]

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

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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)]

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Data Type:	xbrli:monetaryItemType
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Adjustments for decrease (increase) in trade accounts receivable to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)]

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Adjustments for depreciation expense to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)]

Name:	ifrs-full_AdjustmentsForDepreciationExpense
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

Adjustments for net finance income or cost to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Finance income (cost); Profit (loss)]

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Balance Type:	credit
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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]

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

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

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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)]

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Data Type:	xbrli:monetaryItemType
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Adjustments for interest expense to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Interest expense; Profit (loss)]

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

No definition available.

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Adjustments for share-based payments to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Profit (loss)]

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-Name IAS
-Number 7
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-Paragraph 20
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_20_b&doctype=Standard
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The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

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-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_45&doctype=Standard
-URIDate 2024-03-27

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-Name IFRS
-Number 12
-IssueDate 2024-01-01
-Paragraph B13
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_B13_a&doctype=Appendix&subtype=B
-URIDate 2024-03-27

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-Paragraph 54
-Subparagraph i
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_i&doctype=Standard
-URIDate 2024-03-27

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The cash flows from (used in) financing activities, which are activities that result in changes in the size and composition of the contributed equity and borrowings of the entity, from continuing and discontinued operations.

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-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_10&doctype=Standard
-URIDate 2024-03-27

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-Paragraph 50
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_50_d&doctype=Standard
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No definition available.

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The cash flows from (used in) investing activities, which are the acquisition and disposal of long-term assets and other investments not included in cash equivalents, from continuing and discontinued operations.

Name:	ifrs-full_CashFlowsFromUsedInInvestingActivities
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No definition available.

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The cash flows from (used in) operating activities, which are the principal revenue-producing activities of the entity and other activities that are not investing or financing activities, from continuing and discontinued operations. [Refer: Revenue]

Name:	ifrs-full_CashFlowsFromUsedInOperatingActivities
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No definition available.

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The cash from (used in) the entity's operations.

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-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&doctype=Illustrative%20Examples&dita_xref=IAS07_IE_A_TI
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-IssueDate 2024-01-01
-Paragraph 20
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_20&doctype=Standard
-URIDate 2024-03-27

Name:	ifrs-full_CashFlowsFromUsedInOperations
Namespace Prefix:	ifrs-full_
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Balance Type:	na
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The effect of exchange rate changes on cash and cash equivalents held or due in a foreign currency. [Refer: Cash and cash equivalents]

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-Number 7
-IssueDate 2024-01-01
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_25&doctype=Standard
-URIDate 2024-03-27

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-Name IAS
-Number 7
-IssueDate 2024-01-01
-Paragraph 28
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_28&doctype=Standard
-URIDate 2024-03-27

Name:	ifrs-full_EffectOfExchangeRateChangesOnCashAndCashEquivalents
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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The cash outflow for finance costs paid, classified as operating activities. [Refer: Finance costs]

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-Number 7
-IssueDate 2024-01-01
-Paragraph 31
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_31&doctype=Standard
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Name:	ifrs-full_FinanceCostsPaidClassifiedAsOperatingActivities
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

The increase (decrease) in cash and cash equivalents before the effect of exchange rate changes on cash and cash equivalents held in foreign currencies. [Refer: Cash and cash equivalents; Effect of exchange rate changes on cash and cash equivalents]

Name:	ifrs-full_IncreaseDecreaseInCashAndCashEquivalentsBeforeEffectOfExchangeRateChanges
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Data Type:	xbrli:monetaryItemType
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The cash outflow for interest paid, classified as operating activities.

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-IssueDate 2024-01-01
-Paragraph 31
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_31&doctype=Standard
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Name:	ifrs-full_InterestPaidClassifiedAsOperatingActivities
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The cash inflow from interest received, classified as operating activities.

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The cash outflow for payment of lease liabilities, classified as financing activities. [Refer: Lease liabilities]

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-Number 7
-IssueDate 2024-01-01
-Paragraph 17
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_17_e&doctype=Standard
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The cash inflow from the exercise of options.

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-Number 7
-IssueDate 2024-01-01
-Paragraph 17
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_17&doctype=Standard
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The cash inflow from sales of property, plant and equipment, classified as investing activities. [Refer: Property, plant and equipment]

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-Number 7
-IssueDate 2024-01-01
-Paragraph 16
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_16_b&doctype=Standard
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The total of income less expenses from continuing and discontinued operations, excluding the components of other comprehensive income. [Refer: Other comprehensive income]

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-IssueDate 2024-01-01
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_18_b&doctype=Standard
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-IssueDate 2024-01-01
-Paragraph 32
-Subparagraph a
-Clause ii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2024-en-r&anchor=para_32_a_ii&doctype=Standard
-URIDate 2024-03-27

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-Paragraph 24
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2024-en-r&anchor=para_24_b&doctype=Standard
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-Name IFRS
-Number 8
-IssueDate 2024-01-01
-Paragraph 28
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_28_b&doctype=Standard
-URIDate 2024-03-27

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-Name IFRS
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-IssueDate 2024-01-01
-Paragraph 23
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2024-en-r&anchor=para_23&doctype=Standard
-URIDate 2024-03-27

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-Number 12
-IssueDate 2024-01-01
-Paragraph B10
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_B10_b&doctype=Appendix&subtype=B
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-Name IFRS
-Number 17
-IssueDate 2024-01-01
-Paragraph 113
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2024-en-r&anchor=para_113_b&doctype=Standard
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-Paragraph 81A
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_81A_a&doctype=Standard
-URIDate 2024-03-27

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-Name IAS
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-IssueDate 2024-01-01
-Paragraph 106
-Subparagraph d
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_106_d_i&doctype=Standard
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Name:	ifrs-full_ProfitLoss
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The cash outflow for the purchases of property, plant and equipment, classified as investing activities. [Refer: Property, plant and equipment]

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-Number 7
-IssueDate 2024-01-01
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-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2024-en-r&anchor=para_16_a&doctype=Standard
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