Cover - USD ($)	12 Months Ended
	Dec. 31, 2025	Mar. 27, 2026	Jun. 30, 2025
Document Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Transition Report	false
Document Financial Statement Error Correction [Flag]	false
Entity Interactive Data Current	Yes
ICFR Auditor Attestation Flag	false
Amendment Flag	false
Document Period End Date	Dec. 31, 2025
Document Fiscal Year Focus	2025
Document Fiscal Period Focus	FY
Entity Registrant Name	Emmis Acquisition Corp.
Entity Central Index Key	0002075816
Entity File Number	001-42861
Entity Tax Identification Number	98-1886130
Entity Incorporation, State or Country Code	E9
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Shell Company	true
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Address, Address Line One	515 E Olas Blvd
Entity Address, Address Line Two	Suite 120
Entity Address, City or Town	Fort Lauderdale
Entity Address, State or Province	FL
Entity Address, Postal Zip Code	33301
City Area Code	201
Local Phone Number	282-6717
Entity Public Float			$ 0
Ordinary shares, par value $0.0001 per share
Document Information [Line Items]
Title of 12(b) Security	Ordinary shares, par value $0.0001 per share
Trading Symbol	EMIS
Security Exchange Name	NASDAQ
Rights, each Right to acquire one-tenth (1/10) of one Ordinary Share
Document Information [Line Items]
Title of 12(b) Security	Rights, each Right to acquire one-tenth (1/10) of one Ordinary Share
Trading Symbol	EMISR
Security Exchange Name	NASDAQ
Class A Ordinary Shares
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		11,942,500
Class B Ordinary Shares
Document Information [Line Items]
Entity Common Stock, Shares Outstanding		3,833,333