Note 11 - Segment and Geographic Data (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

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

Net Sales:	Three months ended March 31, 2021		Three months ended March 31, 2020
Dental	$	2,853,657	$	1,803,586
Medical		71,050		7,800
Total net sales	$	2,924,707	$	1,811,386

Operating Income (Loss):	Three months ended March 31, 2021			Three months ended March 31, 2020
Dental	$	1,126,069		$	576,386
Medical		(895,781	)		(669,814	)
Corporate		(1,214,661	)		(1,515,178	)
Total operating loss	$	(984,373	)	$	(1,608,606	)

Depreciation and Amortization	Three months ended March 31, 2021		Three months ended March 31, 2020
Dental	$	1,706	$	5,699
Medical		3,851		3,712
Corporate		15,367		27,808
Total depreciation and amortization	$	20,924	$	37,219

Income (loss) before taxes and equity in earnings of affiliates:	Three months ended March 31, 2021			Three months ended March 31, 2020
Dental	$	1,125,154		$	572,289
Medical		(897,051	)		(669,814	)
Corporate		(1,215,011	)		(1,515,178	)
Total loss before taxes and equity in earnings of affiliate	$	(986,908	)	$	(1,612,703	)

Total Assets:	March 31, 2021		December 31, 2020
Dental	$	6,954,380	$	6,035,645
Medical		1,019,186		923,658
Corporate		14,667,467		12,612,147
Total assets	$	22,641,033	$	19,571,450

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

	Three months ended March 31, 2021						Three months ended March 31, 2020
	Dental		Medical		Total		Dental		Medical		Total
Domestic: US/Canada
Instruments	$	176,016	$	-	$	176,016	$	525	$	-	$	525
Handpieces		794,984		8,150		803,134		697,360		-		697,360
Accessories		17,908				17,908		22,506		-		22,506
Total Domestic US	$	988,908	$	8,150	$	997,058	$	720,391	$	-	$	720,391
International: Rest of World
Instruments	$	383,255	$	42,500	$	425,755	$	242,504	$	7,600	$	250,104
Handpieces		954,534		20,400		974,934		830,208		200		830,408
Accessories		20,560		-		20,560		10,483		-		10,483
Total International	$	1,358,349	$	62,900	$	1,421,249	$	1,083,195	$	7,800	$	1,090,995
International: China
Instruments	$	150,000	$	-	$	150,000	$	-	$	-	$	-
Handpieces		356,400		-		356,400		-		-		-
Other		-		-		-		-		-		-
Total International	$	506,400	$	-	$	506,400	$	-	$	-	$	-
Total Product Sales	$	2,856,658	$	71,050	$	2,924,707	$	1,803,586	$	7,800	$	1,811,386