Note 11 - Segment and Geographic Data (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

Net Sales:	Three months ended September 30, 2021		Three months ended September 30, 2020		Nine months ended September 30, 2021		Nine months ended September 30, 2020
Dental	$	2,076,233	$	1,240,110	$	7,334,628	$	3,209,370
Medical		32,000		6,000		124,050		15,800
Total net sales	$	2,108,233	$	1,246,110	$	7,458,678	$	3,225,170

Operating Income (Loss):	Three months ended September 30, 2021			Three months ended September 30, 2020			Nine months ended September 30, 2021			Nine months ended September 30, 2020
Dental	$	193,252		$	191,235		$	1,844,083		$	(32,624	)
Medical		(937,876	)		(812,840	)		(2,968,596	)		(2,297,080	)
Corporate		(1,236,297	)		(855,123	)		(4,713,353	)		(3,928,521	)
Total operating loss	$	(1,980,921	)	$	(1,476,728	)	$	(5,837,866	)	$	(6,258,225	)

Depreciation and Amortization	Three months ended September 30, 2021		Three months ended September 30, 2020		Nine months ended September 30, 2021		Nine months ended September 30, 2020
Dental	$	892	$	402	$	3,458	$	9,202
Medical		1,241		674		6,257		5,006
Corporate		14,220		15,429		42,398		60,653
Total depreciation and amortization	$	16,353	$	16,505	$	52,113	$	74,861

Income (loss) before taxes and equity in earnings of affiliates:	Three months ended September 30, 2021			Three months ended September 30, 2020			Nine months ended September 30, 2021			Nine months ended September 30, 2020
Dental	$	191,864		$	190,472		$	1,915,148		$	(35,376	)
Medical		(939,202	)		(813,935	)		(2,972,462	)		(2,300,243	)
Corporate		(1,238,191	)		(853,834	)		(4,515,976	)		(3,931,333	)
Total loss before taxes and equity in earnings of affiliate	$	(1,985,529	)	$	(1,477,297	)	$	(5,573,290	)	$	(6,266,952	)

Total Assets:	September 30, 2021		December 31, 2020
Dental	$	6,047,663	$	6,035,645
Medical		1,369,098		923,658
Corporate		12,660,726		12,612,147
Total assets	$	20,077,487	$	19,571,450

Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]

	Three Months Ended September 30, 2021						Three Months Ended September 30, 2020
	Dental		Medical		Grand Total		Dental		Medical		Grand Total
Domestic: US
Instruments	$	36,480	$	-	$	36,480	$	34,657	$	-	$	34,657
Handpieces		721,149		11,500		732,649		356,566		-		356,566
Accessories		21,253		-		21,253		16,906		-		16,906
Total Domestic US	$	778,882	$	11,500	$	790,382	$	408,129	$	-	$	408,129
International: Rest of World
Instruments	$	253,063	$	4,500	$	257,563	$	220,694	$	-	$	220,694
Handpieces		674,133		16,000		690,133		602,000		6,000		608,000
Accessories		9,300		-		9,300		9,287		-		9,287
Total International	$	936,496	$	20,500	$	956,996	$	831,981	$	6,000	$	837,981
International: China
Instruments	$	-	$	-	$	-	$	-	$	-	$	-
Handpieces		360,855		-		360,855		-		-		-
Accessories		-		-		-		-		-		-
Total International		360,855		-	$	360,855		-		-		-
Total Product Sales	$	2,076,233	$	32,000	$	2,108,233	$	1,240,110	$	6,000	$	1,246,110

	Nine Months Ended September 30, 2021						Nine Months Ended September 30, 2020
	Dental		Medical		Grand Total		Dental		Medical		Grand Total
Domestic: US
Instruments	$	391,250	$	-	$	391,250	$	35,181	$	-	$	35,181
Handpieces		2,319,049		19,650		2,338,699		992,057		2,000		994,057
Accessories		58,134				58,134		37,895		-		37,895
Total Domestic US	$	2,768,433	$	19,650	$	2,788,083	$	1,065,133	$	2,000	$	1,067,133
International: Rest of World
Instruments	$	792,903	$	62,500	$	855,403	$	494,998	$	7,600	$	502,598
Handpieces		2,337,692		41,900		2,379,592		1,618,524		6,200		1,624,724
Accessories		42,409				42,409		30,715		-		30,715
Total International	$	3,173,004	$	104,400	$	3,277,404	$	2,144,237	$	13,800	$	2,158,037
International: China
Instruments	$	228,000	$	-	$	228,000	$	-	$	-	$	-
Handpieces		1,165,191		-		1,165,191		-		-		-
Accessories		-		-		-		-		-		-
Total International		1,393,191		-	$	1,393,191	$	-	$	-	$	-
Total Product Sales	$	7,334,628	$	124,050	$	7,458,678	$	3,209,370	$	15,800	$	3,225,170