Document and Entity Information - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2015	May. 29, 2015	Sep. 30, 2014
Document and Entity Information [Abstract]
Entity Registrant Name		AGILYSYS INC
Entity Central Index Key		0000078749
Current Fiscal Year End Date		--03-31
Entity Filer Category		Accelerated Filer
Document Type		10-K
Document Period End Date		Mar. 31, 2015
Document Fiscal Year Focus		2015
Document Fiscal Period Focus		FY
Amendment Flag		true
Amendment Description	This Amendment No. 1 on Form 10-K/A amends our original Annual Report on Form 10-K for the year ended March 31, 2015 (the “Original Filing”) for reasons as described within the Explanatory Note section of the 10-K/A.
Entity Common Stock, Shares Outstanding			22,770,057
Entity Well-known Seasoned Issuer		No
Entity Voluntary Filers		No
Entity Current Reporting Status		Yes
Entity Public Float				$ 208,096,430