Stock-Based Compensation, Stock Options (Details) - USD ($)					12 Months Ended
		Jul. 24, 2024	Jan. 31, 2024	Nov. 11, 2020	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Number of Shares [Abstract]
Outstanding, Beginning Balance (in shares)					319,700	364,916
Granted (in shares)					24,600	4,000
Exercised (in shares)					(10,000)	(39,616)
Forfeited (in shares)					(800)	(9,600)
Outstanding, Ending Balance (in shares)					333,500	319,700	364,916
Options Exercisable, Ending Balance (in shares)					274,467	242,834
Weighted Average Exercise Price [Abstract]
Outstanding, Beginning Balance (in dollars per share)					$ 11.83	$ 11.64
Granted (in dollars per share)					11.79	13.69
Exercised (in dollars per share)					11.09	9.46
Forfeited (in dollars per share)					11.86	15.31
Outstanding, Ending Balance (in dollars per share)					11.85	11.83	$ 11.64
Options Exercisable, Ending Balance (in dollars per share)					$ 11.84	$ 11.8
Weighted Average Remaining Contract Term [Abstract]
Outstanding, Ending Balance					3 years 9 months 25 days	4 years 3 months 18 days	4 years 9 months 21 days
Options Exercisable, Ending Balance					3 years 1 month 20 days	3 years 7 months 13 days
Aggregate Intrinsic Value [Abstract]
Outstanding, Ending Balance					$ 583,818	$ 115,197	$ 874,321
Options Exercisable, Ending Balance					$ 481,818	$ (80,340)
Number of Shares [Abstract]
Granted (in shares)					24,600	4,000
Stock Options [Member]
Number of Shares [Abstract]
Granted (in shares)					24,600
Number of Shares [Abstract]
Nonvested, Beginning Balance (in shares)					76,066
Vested (in shares)					(41,633)
Granted (in shares)					24,600
Forfeited (in shares)					0
Nonvested, Ending Balance (in shares)					59,033	76,066
Weighted Average Exercise Price [Abstract]
Nonvested, Beginning Balance (in dollars per share)					$ 11.92
Vested (in dollars per share)					11.92
Granted (in dollars per share)					11.79
Forfeited (in dollars per share)					0
Nonvested, Ending Balance (in dollars per share)					$ 11.87	$ 11.92
Compensation expense					$ 94,000	$ 69,000
2014 Stock Incentive Plan [Member]
Number of Shares [Abstract]
Outstanding, Ending Balance (in shares)					155,600
Fair Value of Option Granted [Abstract]
Dividend Yield			3.65%
Expected Term			10 years
Risk-Free Interest Rate			3.99%
Expected Life			10 years
Expected Volatility	[1]		36.58%
2014 Stock Incentive Plan [Member] | Stock Options [Member]
Number of Shares [Abstract]
Granted (in shares)		23,000	4,000
Number of Shares [Abstract]
Granted (in shares)		23,000	4,000
2019 Stock Incentive Plan [Member]
Fair Value of Option Granted [Abstract]
Dividend Yield				2.78%
Expected Term				10 years
Risk-Free Interest Rate				0.98%
Expected Life				10 years
Expected Volatility	[1]			25.56%
2019 Stock Incentive Plan [Member] | Stock Options [Member]
Number of Shares [Abstract]
Granted (in shares)		1,600
Number of Shares [Abstract]
Granted (in shares)		1,600
2014/2019 Stock Incentive Plan [Member]
Fair Value of Option Granted [Abstract]
Dividend Yield		4.41%
Expected Term		10 years
Risk-Free Interest Rate		4.28%
Expected Life		10 years
Expected Volatility	[1]	35.51%

[1] Weekly volatility is annualized by multiplying by the square root of 52.