Condensed Consolidated Statements of Income - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Condensed Consolidated Statements of Income [Abstract]
Net sales	$ 4,415,886	$ 4,929,789	$ 8,780,953	$ 10,138,084
Cost of goods sold	2,866,193	3,311,892	5,649,423	6,883,960
Gross profit	1,549,693	1,617,897	3,131,530	3,254,124
Selling, general and administrative expenses	1,229,294	1,615,824	3,010,091	3,121,595
Income from operations	320,399	2,073	121,439	132,529
Other income	255,975	506,700	355,975	506,700
Interest income	3,626	2,660	4,258	609
Income before income tax provision	580,000	511,433	481,672	639,838
Income tax provision	1,031	2,543	2,062	4,019
Net income	$ 578,969	$ 508,890	$ 479,610	$ 635,819
Income per common share:
Basic (in dollars per share)	$ 0.06	$ 0.07	$ 0.05	$ 0.09
Diluted (in dollars per share)	$ 0.06	$ 0.07	$ 0.05	$ 0.09
Weighted-average number of shares:
Basic (in shares)	9,144,099	7,405,758	8,994,023	7,405,295
Diluted (in shares)	10,064,713	7,453,450	10,062,915	7,424,239