Segment information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Segment information
Professional service fee in connection with the Business Combination	$ 398,163	$ 0
Other formation and operating costs	661,031	560,155
Total formation and operating costs	1,059,194	560,155
Interest earned on investment held in Trust Account	3,171,545	3,471,188
Net income	$ 2,112,351	$ 2,911,033