Document And Entity Information	6 Months Ended
	Mar. 31, 2015	May 01, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q2
Entity Filer Category	Smaller Reporting Company
Entity Registrant Name	MICROWAVE FILTER CO INC /NY/
Entity Central Index Key	0000716688
Current Fiscal Year End Date	--09-30
Entity Common Stock, Shares Outstanding		2,581,466