Document and Entity Information - shares	3 Months Ended
	Jun. 30, 2019	Jul. 23, 2019
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-Q
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		23,675,380
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false