Document and Entity Information - USD ($)	12 Months Ended
	Oct. 31, 2015	Jan. 16, 2016	Apr. 30, 2015
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Oct. 31, 2015
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2015
Entity Registrant Name	MGC DIAGNOSTICS Corp
Entity Central Index Key	0000815093
Current Fiscal Year End Date	--10-31
Entity Filer Category	Smaller Reporting Company
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Trading Symbol	mgcd
Entity Common Stock, Shares Outstanding		4,337,072
Entity Public Float			$ 29,874,000