Condensed Balance Sheets - USD ($)	Mar. 31, 2026	Dec. 31, 2025
Current assets:
Cash	$ 100,159	$ 135
Prepaid expenses	36,666	58,667
Total current assets	136,825	58,802
Investments held in Trust Account	530,997	527,330
Total Assets	667,822	586,132
Current liabilities:
Accounts payable and accrued expenses	338,072	304,087
Total current liabilities	838,140	684,155
Deferred underwriting fee payable	7,000,000	7,000,000
Total Liabilities	7,838,140	7,684,155
Commitments and Contingencies (Note 6)
Class A ordinary shares subject to possible redemption, no par value; 43,594 shares and 43,594 shares at redemption value of $12.181 and $12.096 per share as of March 31, 2026 and December 31, 2025, respectively	530,997	527,330
Shareholders’ Deficit
Preference shares, no par value; 1,000,000 shares authorized; none issued and outstanding
Additional paid-in capital
Accumulated deficit	(7,701,315)	(7,625,353)
Total Shareholders’ Deficit	(7,701,315)	(7,625,353)
Total Liabilities, Shares Subject to Redemption, and Shareholders’ Deficit	667,822	586,132
Related Party
Current liabilities:
Due to related party	88,000	88,000
Promissory note – related party	412,068	292,068
Class A Ordinary Shares
Shareholders’ Deficit
Ordinary shares, value
Class B Ordinary Shares
Shareholders’ Deficit
Ordinary shares, value

Represents the amount of deferred underwriting fee payable.

No definition available.

Name:	ascb_DeferredUnderwritingFeePayable
Namespace Prefix:	ascb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.