XML 127 R27.htm IDEA: XBRL DOCUMENT
v3.24.2.u1

Initial Public Offering (Details) - USD ($) |  | 3 Months Ended | 10 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Mar. 28, 2023 | Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2023
Initial Public Offering [Line Items] |  |  |  |  |
Price per share (in Dollars per share) |  | $ 10.175 |  |  |
Gross proceeds (in Dollars) |  |  | $ 57,500,000 |  | $ 57,500,000
Warrant expiration term |  | 5 years |  |  |
Business Combination [Member] |  |  |  |  |
Initial Public Offering [Line Items] |  |  |  |  |
Price per share (in Dollars per share) |  | $ 10 |  |  | $ 10
Expire IPO [Member] |  |  |  |  |
Initial Public Offering [Line Items] |  |  |  |  |
Expire term | 5 years |  |  |  |
Public Warrant [Member] |  |  |  |  |
Initial Public Offering [Line Items] |  |  |  |  |
Number of warrant | 1 |  |  |  |
Price per share (in Dollars per share) | $ 11.5 |  |  |  |
Ordinary shares | 1 |  |  |  |
Redeemable warrant | 1 |  |  |  |
Class A Ordinary Shares [Member] |  |  |  |  |
Initial Public Offering [Line Items] |  |  |  |  |
Price per share (in Dollars per share) |  | 11.5 |  |  | 11.5
Number of Shares Issued Per Unit (in Dollars per share) | $ 1 |  |  |  |
Number of shares issuable per warrant | 1 |  |  |  |
Ordinary shares | 1 |  |  |  |
Initial Public Offering [Member] |  |  |  |  |
Initial Public Offering [Line Items] |  |  |  |  |
Number of units | 5,750,000 |  |  |  |
Price per share (in Dollars per share) | $ 10 | $ 10 |  |  | $ 10
Gross proceeds (in Dollars) | $ 57,500,000 | $ 1,150,000 |  |  | $ 1,150,000
Sale of units | 5,750,000 |  |  |  |
Price per units (in Dollars per share) | $ 10 |  |  |  |
Initial Public Offering [Member] | Business Combination [Member] |  |  |  |  |
Initial Public Offering [Line Items] |  |  |  |  |
Warrant expiration term | 5 years |  |  |  |
Over-Allotment Option [Member] |  |  |  |  |
Initial Public Offering [Line Items] |  |  |  |  |
Number of units | 750,000 | 750,000 |  |  | 750,000
Units granted to the underwriters | 750,000 |  |  |  |

X
- References No definition available. + Details
Name: | oaku_InitialPublicOfferingDetailsLineItems
Namespace Prefix: | oaku_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition he number of shares in a unit. + References No definition available. + Details
Name: | oaku_NumberOfSharesIssuedPerUnit
Namespace Prefix: | oaku_
Data Type: | dtr:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of warrants in a unit. + References No definition available. + Details
Name: | oaku_NumberOfWarrantsIssuedPerUnit
Namespace Prefix: | oaku_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Per share or per unit amount of equity securities issued. + References No definition available. + Details
Name: | oaku_ShareIssuedPricePerShare
Namespace Prefix: | oaku_
Data Type: | dtr:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of new units issued during the period. + References No definition available. + Details
Name: | oaku_UnitsIssuedDuringPeriodSharesNewIssues
Namespace Prefix: | oaku_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period when results of operations of the acquired entity are included in the income statement of the combined entity, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionPeriodResultsIncludedInCombinedEntity1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares. + References No definition available. + Details
Name: | us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Net number of shares reclassified to mandatorily redeemable capital stock. + References No definition available. + Details
Name: | us-gaap_NetSharesReclassifiedToMandatorilyRedeemableCapitalStockShares
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash inflow associated with the amount received from entity's first offering of stock to the public. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-14 + Details
Name: | us-gaap_ProceedsFromIssuanceInitialPublicOffering
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The number of shares issued or sold by the subsidiary or equity method investee per stock transaction. + References No definition available. + Details
Name: | us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction. + References No definition available. + Details
Name: | us-gaap_SaleOfStockPricePerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Gross number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Per share or per unit amount of equity securities issued. + References No definition available. + Details
Name: | us-gaap_SharesIssuedPricePerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of increase (decrease) in shares of stock classified as other. + References No definition available. + Details
Name: | us-gaap_StockholdersEquityOtherShares
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (bbb)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
Name: | us-gaap_WarrantsAndRightsOutstandingTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=oaku_BusinessCombinationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=oaku_ExpireIPOMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=us-gaap_WarrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=us-gaap_IPOMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=us-gaap_OverAllotmentOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |