STATEMENTS OF OPERATIONS (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Sales, net	$ 5,568,654	$ 5,790,837	$ 12,090,549	$ 10,789,623
Cost of sales	2,067,122	2,292,479	4,676,975	4,010,629
Gross profit	3,501,532	3,498,358	7,413,574	6,778,994
OPERATING EXPENSES:
Sales and marketing	1,613,998	1,906,586	3,362,038	3,681,586
General and administrative	941,960	995,341	2,023,424	1,936,539
Total operating expenses	2,555,958	2,901,927	5,385,462	5,618,125
INCOME FROM OPERATIONS	945,574	596,431	2,028,112	1,160,869
OTHER INCOME (EXPENSE)
Interest income	5,713	840	15,230	10,286
Interest expense	(105,133)	(111,088)	(210,875)	(221,502)
Other income, net	5,800	8,091	100,802	121,100
Income before income taxes	851,954	494,274	1,933,269	1,070,753
Income tax provision	(231,533)	(134,363)	(525,766)	(284,366)
Net income	620,421	359,911	1,407,503	786,387
Accrued preferred stock dividends	(256,452)	(256,452)	(512,904)	(512,904)
Income applicable to common shareholders	$ 363,969	$ 103,459	$ 894,599	$ 273,483
Earnings per common share after preferred dividends, basic and diluted	$ 0.07	$ 0.02	$ 0.18	$ 0.06
Weighted average number of common shares outstanding	4,964,529	4,964,529	4,964,529	4,964,529