Document and Entity Information - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	May 13, 2022	Sep. 30, 2021
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Mar. 31, 2022
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Entity Registrant Name	AGILYSYS, INC.
Entity Central Index Key	0000078749
Entity Current Reporting Status	Yes
Current Fiscal Year End Date	--03-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		24,737,022
Entity Shell Company	false
Entity Small Business	false
Entity Emerging Growth Company	false
Title of 12(b) Security	Common Shares, without par value
Trading Symbol	AGYS
Security Exchange Name	NASDAQ
Document Annual Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes
Entity File Number	0-5734
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	34-0907152
Entity Address, Address Line One	1000 Windward Concourse
Entity Address, Address Line Two	Suite 250
Entity Address, City or Town	Alpharetta
Entity Address, State or Province	GA
Entity Address, Postal Zip Code	30005
City Area Code	770
Local Phone Number	810-7800
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
ICFR Auditor Attestation Flag	true
Entity Public Float			$ 830,215,081
Documents Incorporated by Reference	Portions of the registrant’s definitive Proxy Statement to be used in connection with its 2022 Annual Meeting of Shareholders are incorporated by reference into Part III of this Form 10-K
Auditor Name	GRANT THORNTON LLP
Auditor Location	Atlanta, Georgia
Auditor Firm ID	248