Note 6 - Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Finite-Lived Intangible Assets [Table Text Block]

2021
Intangible Assets	Cost		Accumulated Amortization		Carrying Amount
Patents, Copyrights and Intellectual Property	$	601,769	$	421,583	$	180,186
Licensing Agreement		10,000		10,000		0
Certifications		54,207		51,555		2,652
Totals	$	665,976	$	483,138	$	182,838

2020
Intangible Assets	Cost		Accumulated Amortization		Carrying Amount
Patents, Copyrights and Intellectual Property	$	792,821	$	515,665	$	277,156
Licensing Agreement		10,000		10,000		0
Certifications		85,032		73,531		11,501
Totals	$	887,853	$	599,196	$	288,657

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Year Ended
2022	$	34,318
2023		19,756
2024		16,214
2025		16,214
2026		8,246
Thereafter		88,090
Total	$	182,838