0002028201 2026-04-20 2026-04-20 0002028201 COLA:UnitsConsistingOfOneOrdinaryShare0.0001ParValueAndOneRightToAcquireOneseventhOfOneOrdinaryShareMember 2026-04-20 2026-04-20 0002028201 COLA:OrdinarySharesParValue0.0001PerShareMember 2026-04-20 2026-04-20 0002028201 COLA:RightsEachWholeRightToAcquireOneseventhOfOneOrdinaryShareMember 2026-04-20 2026-04-20 false Singapore 0002028201 Columbus Acquisition Corp/Cayman Islands 00-0000000 8-K 2026-04-20 E9 001-42485 14 Prudential Tower SG 049712 +1 949 899 1827 true false false false Units, consisting of one ordinary share, $0.0001 par value, and one Right to acquire one-seventh of one ordinary share COLAU NASDAQ Ordinary shares, par value $0.0001 per share COLA NASDAQ Rights, each whole right to acquire one-seventh of one ordinary share COLAR NASDAQ true false