CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Operations [Abstract]
Revenues	$ 11,370,946	$ 9,649,335	$ 25,855,950	$ 21,017,329
Cost of Revenues	6,422,472	5,152,688	14,129,516	11,027,944
Gross Profit	4,948,474	4,496,647	11,726,434	9,989,385
Product Royalty Income	36,016	17,360	40,675	33,056
Operating Expenses
Salaries and wages	784,131	739,366	2,251,583	2,330,006
Commissions and consulting expenses	157,672	104,608	345,014	263,168
Professional fees	181,233	133,480	716,138	518,017
Advertising and marketing	543,020	520,633	1,524,251	1,556,515
Office lease and expenses	78,932	71,725	225,132	210,263
Research and development costs	404,723	357,258	1,129,535	1,063,573
Bad debt expense	32,172	148,685	59,092	158,184
General and administrative expenses	459,993	485,054	1,390,236	1,473,708
Depreciation	212,564	191,712	595,365	569,707
Total operating expenses	2,854,440	2,752,521	8,236,346	8,143,141
Income from Operations	2,130,050	1,761,486	3,530,763	1,879,300
Other Income (expenses)
Interest and other expenses, net	19,727	(449)	1,621	(4,042)
Total other income (expenses)	19,727	(449)	1,621	(4,042)
Income Before Income Taxes	2,149,777	1,761,037	3,532,384	1,875,258
Income Taxes	538,320	440,259	883,972	471,542
Net Income Available to Common Shareholders	$ 1,611,457	$ 1,320,778	$ 2,648,412	$ 1,403,716
Net Income per Common Share
Basic	$ 0.30	$ 0.25	$ 0.49	$ 0.26
Diluted	$ 0.27	$ 0.24	$ 0.45	$ 0.25
Weighted Average Number of Common Shares Outstanding
Basic	5,386,723	5,386,723	5,386,723	5,384,753
Diluted	5,860,428	5,532,275	5,860,428	5,530,304
Comprehensive Income
Net Income	$ 1,611,457	$ 1,320,778	$ 2,648,412	$ 1,403,716
Other comprehensive income, net of $-0- and $-0- deferred income taxes in 2020 and 2019
Foreign currency translation	17,584	(102,756)	(239,806)	(69,591)
Total Comprehensive Income	$ 1,629,041	$ 1,218,022	$ 2,408,606	$ 1,334,125