Segment information (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2026	Mar. 31, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Segment information
Professional services fee in connection with Business Combination	$ 0		$ (40,000)	$ 0	$ (75,000)
Other formation and operating costs	(98,060)		(113,989)	(231,999)	(232,287)
Total formation and operating costs	(98,060)		(153,989)	(231,999)	(307,287)
Interest earned on investment held in Trust Account	7,474		229,876	17,849	454,628
Net (loss) income	$ (90,586)	$ (123,564)	$ 75,887	$ (214,150)	$ 147,341