Segment information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Segment information
Professional services fee in connection with Business Combination	$ 0	$ (35,000)
Other formation and operating costs	(133,939)	(118,298)
Total formation and operating costs	(133,939)	(153,298)
Interest earned on investment held in Trust Account	10,375	224,752
Net (loss) income	$ (123,564)	$ 71,454