Cover - shares	9 Months Ended
	Mar. 31, 2024	May 10, 2024
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes
Amendment Flag	false
Document Period End Date	Mar. 31, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q3
Entity Information [Line Items]
Entity Registrant Name	ESPEY MFG. & ELECTRONICS CORP.
Entity Central Index Key	0000033533
Entity File Number	1-4383
Entity Tax Identification Number	14-1387171
Entity Incorporation, State or Country Code	NY
Current Fiscal Year End Date	--06-30
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Contact Personnel [Line Items]
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
Entity Phone Fax Numbers [Line Items]
City Area Code	518
Local Phone Number	245-4400
Entity Listings [Line Items]
Title of 12(b) Security	Common Stock $.33-1/3 par valueESPNYSE American
Trading Symbol	ESP
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		2,732,762