Condensed Consolidated Statements of Operations - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Condensed Consolidated Statements of Operations [Abstract]
Net sales	$ 3,987,452	$ 4,789,441	$ 14,125,537	$ 14,362,862
Cost of goods sold	2,569,900	3,199,665	9,453,860	10,061,544
Gross profit	1,417,552	1,589,776	4,671,677	4,301,318
Selling, general and administrative expenses	2,271,615	1,687,676	5,393,211	4,938,983
(Loss) income from operations	(854,063)	(97,900)	(721,534)	(637,665)
Other income	378,805		885,505
Interest income	1,139	6,631	1,748	19,955
(Loss) income before income tax provision	(474,119)	(91,269)	165,719	(617,710)
Income tax provision	49	6,104	4,068	6,125
Net (loss) income	$ (474,168)	$ (97,373)	$ 161,651	$ (623,835)
(Loss) income per common share:
Basic (in dollars per share)	$ (0.06)	$ (0.01)	$ 0.02	$ (0.08)
Diluted (in dollars per share)	$ (0.06)	$ (0.01)	$ 0.02	$ (0.08)
Weighted-average number of shares:
Basic (in shares)	8,100,730	7,404,831	7,633,722	7,404,831
Diluted (in shares)	8,100,730	7,404,831	9,188,002	7,404,831