Income Taxes (Tables)

12 Months Ended

Jun. 30, 2025

Income Taxes

Schedule of income tax benefit (provision) [Table Text Block]

		Current		Deferred		Total
2025:
U.S. federal	$	-	$	-	$	-
State and local		12,161		-		12,161
	$	12,161	$	-	$	12,161
2024:
U.S. federal	$	-	$	-	$	-
State and local		-		-		-
	$	-	$	-	$	-

Schedule of components of income tax benefit (provision) [Table Text Block]

		2025			2024
Expected tax benefit	$	2,289,444		$	566,521
State taxes, net of federal tax benefit		404,341			97,884
Valuation allowance		(802,322	)		(664,480	)
Impairment		(1,758,432	)		-
Incentive stock options		-			1,657
Other, net		(145,192	)		(1,582	)
	$	(12,161	)	$	-

Schedule of deferred income tax assets and (liabilities) [Table Text Block]

		2025			2024
Net deferred income tax assets (liabilities):
Inventory capitalization for income tax purposes	$	21,864		$	28,642
Inventory reserve		136,671			145,227
Accrued employee benefit reserve		31,067			40,164
Warranty reserve		26,108			29,720
Interest expense limitation		441,908			339,509
Allowance for credit losses and other		47,931			35,918
Property and equipment, principally due to differences in depreciation		(144,592	)		(13,672	)
Intangible assets		400,613			121,697
Research and development credit carryover		574,022			574,022
Deferred gain on sale lease-back		154,891			191,436
Operating loss carry forwards		5,993,596			5,388,117
Valuation allowance		(7,686,550	)		(6,884,228	)
Capitalized research and development		2,471			3,448
Total deferred income tax assets (liabilities)	$	-		$	-