Stock Options - Plan Information (Details) - USD ($)	1 Months Ended				3 Months Ended		9 Months Ended
	Dec. 31, 2022	May 31, 2020	Dec. 31, 2018	Dec. 31, 2012	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024	Jun. 30, 2024	Jun. 30, 2023
Stock Options
Stock-based compensation expense, allocated					$ 386,000	$ 266,000	$ 1,143,000	$ 876,000
Basic earnings per share from share based compensation costs					$ 0.01	$ 0.01	$ 0.03	$ 0.02
Diluted earnings per share from share based compensation costs					$ 0.01	$ 0.01	$ 0.03	$ 0.02
Proceeds from stock option exercises							$ 54,000	$ 427,000
2012 Employee Stock Option Plan
Stock Options
Shares authorized (in shares)				1,900,000
Threshold percentage of voting rights				10.00%
Premium on fair market value (as a percent)				110.00%
Term				10 years
Vesting rights percentage				20.00%
Outstanding (in shares)					361,036	363,036	361,036	363,036	363,036	521,580
Exercisable, end of period					265,660	178,984	265,660	178,984
Available for grant (in shares)					0		0
Exercised					0	115,944	2,000	147,544
Number of Stock options settled by withholding of shares						77,944		109,544
Shares withheld						26,002		46,570
Shares converted (in shares)						38,000		38,000
Proceeds from stock option exercises						$ 427,000	$ 54,000	$ 427,000
Deferred tax benefit						$ 67,000	0	$ 119,000
Unearned stock based compensation					$ 468,000		$ 468,000
Vested					0	5,200	76,700	89,900
Fair Value					$ 0	$ 33,000	$ 782,000	$ 881,000
2012 Non-Employee Stock Option Plan
Stock Options
Shares authorized (in shares)				100,000
Term				10 years
Vesting rights percentage				20.00%
Outstanding (in shares)					20,400	20,400	20,400	20,400	20,400	20,400
Exercisable, end of period					18,480	16,560	18,480	16,560
Available for grant (in shares)					0		0
Exercised					0	0	0	0
Proceeds from stock option exercises					$ 0	$ 0	$ 0	$ 0
Deferred tax benefit					0	$ 0	0	$ 0
Unearned stock based compensation					$ 10,000		$ 10,000
Vested					0	720	1,920	2,640
Fair Value					$ 0	$ 5,000	$ 19,000	$ 24,000
2018 Non-Employee Stock Option Plan
Stock Options
Shares authorized (in shares)			100,000
Term			10 years
Vesting rights percentage			20.00%
Outstanding (in shares)					64,900	71,900	64,900	71,900	68,900	75,000
Exercisable, end of period					62,200	62,500	62,200	62,500
Available for grant (in shares)					4,000		4,000
Granted							0	0
Exercised					0	1,500	0	3,100
Number of Stock options settled by withholding of shares						1,500		3,100
Shares withheld						792		1,532
Proceeds from stock option exercises					$ 0	$ 0	$ 0	$ 0
Deferred tax benefit					0	$ 6,000	0	$ 12,000
Unearned stock based compensation					$ 14,000		$ 14,000
Vested					0	5,380	2,700	14,880
Fair Value					$ 0	$ 35,000	$ 27,000	$ 124,000
2018 Non-Employee Stock Option Plan | Options granted after December 2028
Stock Options
Granted							0
2020 Non-Employee Stock Option Plan
Stock Options
Shares authorized (in shares)		100,000
Term		10 years
Vesting rights percentage		20.00%
Outstanding (in shares)					51,900	56,900	51,900	56,900	56,900	56,900
Exercisable, end of period					38,520	30,140	38,520	30,140
Available for grant (in shares)					45,100		45,100
Granted							0	0
Exercised					0	0	3,000	0
Number of Stock options settled by withholding of shares							3,000
Shares withheld							2,151
Proceeds from stock option exercises						$ 0		$ 0
Deferred tax benefit					$ 0	$ 0	$ 7,000	$ 0
Unearned stock based compensation					$ 111,000		$ 111,000
Vested					1,000	1,000	11,380	11,380
Fair Value					$ 16,000	$ 16,000	$ 129,000	$ 129,000
2020 Non-Employee Stock Option Plan | Options granted after May 2030
Stock Options
Granted							0
2022 Employee Stock Option Plan
Stock Options
Shares authorized (in shares)	950,000
Threshold percentage of voting rights	10.00%
Premium on fair market value (as a percent)	110.00%
Term	10 years
Vesting rights percentage	20.00%
Outstanding (in shares)					130,000	10,000	130,000	10,000	130,000	5,000
Exercisable, end of period					28,000	2,000	28,000	2,000
Available for grant (in shares)					820,000		820,000
Granted						0	0	10,000
Exercised					0	0	0	0
Proceeds from stock option exercises					$ 0	$ 0	$ 0	$ 0
Deferred tax benefit					0	$ 0	0	$ 0
Unearned stock based compensation					$ 1,676,000		$ 1,676,000
Vested					0	0	2,000	2,000
Fair Value					$ 19,500	$ 19,500	$ 19,500	$ 19,500
2022 Employee Stock Option Plan | Options granted after December 2032
Stock Options
Granted							0