STATEMENTS OF INCOME - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
SALES, NET	$ 31,786,864	$ 27,314,852
COST OF SALES	13,121,191	10,585,076
GROSS PROFIT	18,665,673	16,729,776
OPERATING EXPENSES:
Sales and marketing	9,603,723	7,458,139
General and administrative	5,371,931	4,269,864
Total operating expenses	14,975,654	11,728,003
INCOME FROM OPERATIONS	3,690,019	5,001,773
OTHER INCOME (EXPENSE)
Interest income	12,412	21,022
Interest expense	(391,272)	(414,061)
Other income, net	155,183	165,916
INCOME BEFORE INCOME TAXES	3,466,342	4,774,650
INCOME TAX PROVISION	(1,020,879)	(1,379,654)
NET INCOME	2,445,463	3,394,996
Preferred stock dividends	(1,444,283)	(1,116,378)
INCOME APPLICABLE TO COMMON SHAREHOLDERS	$ 1,001,180	$ 2,278,618
Earnings per common share after preferred dividends, basic and diluted	$ 0.20	$ 0.46
Weighted-average number of common shares outstanding	4,964,529	4,964,529