Cybersecurity Risk Management and Strategy Disclosure	12 Months Ended
Cybersecurity Risk Management and Strategy Disclosure	Dec. 31, 2024
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]	Although, as a blank check company, we do not have any operations, we are nonetheless subject to the risk of cybersecurity incidents. Among other things, the investments in our Trust Account and bank deposits may be vulnerable to such incidents, and we may depend on the digital technologies of third parties. We and third parties may be subject to cybersecurity attacks or security breaches. To the extent that we rely on the technologies of third parties, we depend upon the personnel and the processes of such third parties to protect against cybersecurity incidents, and we have no personnel or processes of our own for this purpose. In the event of a cybersecurity incident impacting us, our Management Team will report to the Board of Directors and provide updates on the Management Team’s incident response plan for addressing and mitigating any risks associated with such an incident. As an early-stage company without significant investments in data security protection, we may not be sufficiently protected against such occurrences. We also lack sufficient resources to adequately protect against, or to investigate and remediate any vulnerability to, cyber incidents. It is possible that any of these occurrences, or a combination of them, could have material adverse consequences on our business and lead to financial loss. We have not encountered any cybersecurity incidents since our Initial Public Offering. In addition to our own cybersecurity risks, any proposed Business Combination target may have been subject to, or may in the future be subject to, cybersecurity incidents.
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]	true
Cybersecurity Risk Management Third Party Engaged [Flag]	true
Cybersecurity Risk Board of Directors Oversight [Text Block]	In the event of a cybersecurity incident impacting us, our Management Team will report to the Board of Directors and provide updates on the Management Team’s incident response plan for addressing and mitigating any risks associated with such an incident.
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block]	It is possible that any of these occurrences, or a combination of them, could have material adverse consequences on our business and lead to financial loss.
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]	false

Newbury Street II Acquisition Corp 10-K