Document and Entity Information - shares	6 Months Ended
	Dec. 31, 2021	Feb. 11, 2022
Cover [Abstract]
Entity Central Index Key	0000033533
Current Fiscal Year End Date	--06-30
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Amendment Flag	false
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Dec. 31, 2021
Entity File Number	1-4383
Document Transition Report	false
Entity Registrant Name	ESPEY MFG & ELECTRONICS CORP
Entity Incorportion, State or Country Code	NY
Trading Symbol	ESP
Entity Tax Identification Number	14-1387171
Entity Address, Address Line One	233 Ballston Avenue
Entity Address, City or Town	Saratoga Springs
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	12866
City Area Code	518
Local Phone Number	245-4400
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of 12(b) Security	Common stock, $.33-1/3 par value
Entity Common Stock, Shares Outstanding		2,702,633