Significant accounting policies (Details)	9 Months Ended
Oct. 31, 2025 USD ($) shares
Accounting Policies [Abstract]
Ordinary shares subject to possible redemption, shares \| shares	8,625,000
Ordinary shares subject to possible redemption, amount	$ 86,250,000
Proceeds allocated to Public Rights	(1,380,000)
Proceeds allocated to over-allotment option	104,039
Issuance of 1,500,000 common shares, no par value	(2,592,985)
Remeasurement of carrying value to redemption value	$ 5,393,416
Ordinary shares subject to possible redemption, shares \| shares	8,625,000
Ordinary shares subject to possible redemption, amount	$ 87,774,470

Change in the value of each type or class of stock classified as temporary equity during the period. The redemption requirement does not constitute an unconditional obligation that will be settled in a variable number of shares constituting a monetary value predominantly indexed to (a) a fixed monetary amount known at inception, (b) an amount inversely correlated with the residual value of the entity, or (c) an amount determined by reference to something other than the fair value of issuer's stock. Does not include mandatorily redeemable stock. The exception is if redemption is required upon liquidation or termination of the reporting entity.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(27))
-SubTopic 10
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section S99
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480244/480-10-S99-1

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Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration