Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Condensed Consolidated Statements of Operations [Abstract]
Net sales	$ 2,781,006	$ 2,637,606	$ 9,539,960	$ 9,371,668
Cost of goods sold	1,696,334	1,796,083	5,877,405	6,354,015
Gross profit	1,084,672	841,523	3,662,555	3,017,653
Selling, general and administrative expenses	1,603,678	1,451,247	4,960,478	4,572,049
Loss from operations	(519,006)	(609,724)	(1,297,923)	(1,554,396)
Interest income	208,175	214,814	667,219	636,482
Loss before income tax provision (benefit)	(310,831)	(394,910)	(630,704)	(917,914)
Income tax provision (benefit)	5,911	(81,130)	11,431	(77,372)
Net loss	$ (316,742)	$ (313,780)	$ (642,135)	$ (840,542)
Loss per common share:
Basic (in dollars per share)	$ (0.03)	$ (0.03)	$ (0.07)	$ (0.09)
Diluted (in dollars per share)	$ (0.03)	$ (0.03)	$ (0.07)	$ (0.09)
Weighted-average number of shares:
Basic (in shares)	9,375,795	9,254,795	9,346,952	9,243,559
Diluted (in shares)	9,375,795	9,254,795	9,346,952	9,243,559