Stock Based Compensation (Details) - USD ($)	3 Months Ended
Stock Based Compensation (Details) - USD ($)	Sep. 30, 2025	Sep. 30, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation expense	$ 74,440	$ 101,492
Deferred tax benefit	2,870
Unrecognized compensation cost	$ 158,654
Period in which compensation cost will be recognized	1 year 3 months
Vesting period	2 years
Cash dividends on common stock per share (in Dollars per share)	$ 0.25	$ 0.25
Aggregate intrinsic value of options exercised	$ 640,228	$ 93,512
Non-qualified Stock Options [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock-based compensation expense	6,817	7,059
Deferred tax benefit	1,432	$ 1,482
Unrecognized compensation cost	13,668
Incentive Stock Options [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized compensation cost	$ 144,986
Stock Options [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Shares exercised options (in Shares)	200,660
Shares outstanding options (in Shares)	186,871
Number of shares cancelled (in Shares)	12,469
Common Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Cash dividends on common stock per share (in Dollars per share)	$ 0.75
2017 Plan [Member] \| Stock Options [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Vesting period	2 years
Authorized shares under plan (in Shares)	400,000
2017 Plan [Member] \| Non-Employee Directors [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Aggregate number of common stock (in Shares)	133,000
2017 Plan [Member] \| Maximum [Member] \| Non-Employee Directors [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Aggregate number of common stock (in Shares)	13,300
Percentage of total number of shares subject to options or awards, single fiscal year	33 1/3%
2017 Plan [Member] \| Maximum [Member] \| Individual Employee [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Aggregate number of common stock (in Shares)	15,000
2007 Plan [Member] \| Restricted Stock Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Outstanding shares (in Shares)	4,050

ESPEY MFG & ELECTRONICS CORP 10-Q