CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS [Abstract]
Net sales	$ 12,146,790	$ 10,659,090	$ 20,073,083	$ 18,267,511
Costs and expenses:
Cost of goods sold	6,167,708	5,530,514	10,363,763	9,407,138
Sales and marketing	2,480,571	3,160,965	4,128,503	5,390,556
General and administrative	977,528	1,203,686	2,185,564	2,553,187
Total costs and expenses	9,625,807	9,895,165	16,677,830	17,350,881
Income from operations	2,520,983	763,925	3,395,253	916,630
Other income (expense):
Interest income	1,126	45,379	4,586	106,758
Interest expense	(2,466)	(277)	(4,905)	(419)
Loss on foreign currency exchange	(72)	(314)	(603)	(853)
Total other (expense) income, net	(1,412)	44,788	(922)	105,486
Income before income taxes	2,519,571	808,713	3,394,331	1,022,116
Income tax (expense) benefit	(494)	5,337	(988)	(747)
Net income	$ 2,519,077	$ 814,050	$ 3,393,343	$ 1,021,369
Net income per common share:
Basic (in dollars per share)	$ 0.09	$ 0.03	$ 0.12	$ 0.04
Diluted (in dollars per share)	$ 0.09	$ 0.03	$ 0.12	$ 0.03
Weighted average number of shares used in computing net income per common share:
Basic (in shares)	28,804,265	28,656,910	28,795,424	28,610,299
Diluted (in shares)	29,262,702	29,246,571	28,980,009	29,199,876