Note 9 - Segment and Geographic Data - Summary by Reporting and Operating Segments (Details) - USD ($)	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Product sales, net	$ 2,232,420	$ 2,248,845
Cost of products sold	584,985	572,742
Gross Margin	1,647,435	1,676,103
Salaries & employee benefits	764,720	862,952
Stock-based compensation expense	330,788	313,505
Royalty expense	112,491	115,692
Marketing	112,211	113,624
Rent & occupancy costs	33,054	30,608
Consultants and professional services fees	1,284,647	939,399
Insurance	134,305	150,825
Warehousing expense	122,292	113,342
Regulatory expense	84,051	103,498
Travel expense	66,102	51,820
Research and development expenses	369,120	94,211
Depreciation and amortization expense	19,440	11,684
Other segment items	212,067	240,011
Total operating expenses	3,645,288	3,141,171
Operating income (loss)	(1,997,853)	(1,465,068)
Total Assets	9,088,016		$ 9,797,072
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]
Product sales, net	0	0
Cost of products sold	0	0
Gross Margin	0	0
Salaries & employee benefits	117,108	250,482
Stock-based compensation expense	330,788	311,427
Royalty expense	0	0
Marketing	4,261	28,317
Rent & occupancy costs	12,707	10,713
Consultants and professional services fees	1,084,695	637,052
Insurance	42,872	75,974
Warehousing expense	1,205	2,538
Regulatory expense	64,890	97,522
Travel expense	4,473	20,893
Research and development expenses	0	0
Depreciation and amortization expense	19,440	11,684
Other segment items	73,518	143,119
Total operating expenses	1,755,957	1,589,721
Operating income (loss)	(1,755,957)	(1,589,721)
Total Assets	3,030,871		3,992,825
Dental Segment [Member] | Operating Segments [Member]
Product sales, net	2,181,170	2,241,425
Cost of products sold	584,896	568,296
Gross Margin	1,596,274	1,673,129
Salaries & employee benefits	441,497	409,582
Stock-based compensation expense	0	0
Royalty expense	109,928	115,321
Marketing	83,629	76,989
Rent & occupancy costs	12,521	12,243
Consultants and professional services fees	57,662	82,699
Insurance	48,997	44,913
Warehousing expense	112,314	105,910
Regulatory expense	16,849	5,976
Travel expense	31,668	7,977
Research and development expenses	364,807	93,952
Depreciation and amortization expense	0
Other segment items	137,048	92,057
Total operating expenses	1,416,920	1,047,619
Operating income (loss)	179,354	625,510
Total Assets	5,647,891		5,359,734
Medical Segment [Member] | Operating Segments [Member]
Product sales, net	51,250	7,420
Cost of products sold	89	4,446
Gross Margin	51,161	2,974
Salaries & employee benefits	206,115	202,888
Stock-based compensation expense	0	2,078
Royalty expense	2,563	371
Marketing	24,321	8,318
Rent & occupancy costs	7,826	7,652
Consultants and professional services fees	142,290	219,648
Insurance	42,436	29,938
Warehousing expense	8,773	4,894
Regulatory expense	2,312	0
Travel expense	29,961	22,950
Research and development expenses	4,313	259
Depreciation and amortization expense	0	0
Other segment items	1,501	4,835
Total operating expenses	472,411	503,831
Operating income (loss)	(421,250)	$ (500,857)
Total Assets	$ 409,254		$ 444,513