CONDENSED STATEMENTS OF OPERATIONS (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Sales, net	$ 5,765,338	$ 6,521,895
Cost of sales	2,271,771	2,609,853
Gross profit	3,493,567	3,912,042
OPERATING EXPENSES:
Sales and marketing	2,116,665	1,748,040
General and administrative	1,200,893	1,081,464
Total operating expenses	3,317,558	2,829,504
Income from operations	176,009	1,082,538
OTHER INCOME (EXPENSE)
Interest income	3,397	9,517
Interest expense	(99,576)	(105,742)
Other income (expense), net	89,134	95,002
Income before income taxes	168,964	1,081,315
Income tax provision	(46,279)	(294,233)
Net income	122,685	787,082
Accrued preferred stock dividends	(359,636)	(256,452)
Income/(Loss) applicable to common shareholders	$ (236,951)	$ 530,630
Earnings/(Loss) per common share after preferred dividends, basic and diluted	$ (0.05)	$ 0.11
Weighted average number of common shares outstanding	4,964,529	4,964,529