Document and Entity Information (USD $)	3 Months Ended
	Sep. 30, 2013	Nov. 14, 2013
Document And Entity Information
Entity Registrant Name	ESPEY MFG & ELECTRONICS CORP
Entity Central Index Key	0000033533
Document Type	10-Q
Document Period End Date	Sep. 30, 2013
Amendment Flag	false
Current Fiscal Year End Date	--06-30
Is Entity a Well-known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	No
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		2,353,810
Entity Common stock, per share value	$ 0.3333
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2014