Note 4 - Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2021

Notes Tables

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

	As of June 30, 2021							As of December 31, 2020
	Gross Carrying Costs		Accumulated Amortization			Net Carrying Amount		Gross Carrying Costs		Accumulated Amortization			Net Carrying Amount
Patents & Trademarks	$	424,291	$	(220,122	)	$	204,169	$	401,421	$	(211,110	)	$	190,311
Developed Technology		2,882,000		(324,225	)		2,557,775		2,882,000		(252,175	)		2,629,825
Customer Relationships		445,000		(333,750	)		111,250		445,000		(259,583	)		185,417
Tradename		398,000		(16,356	)		381,644		398,000		(5,452	)		392,548
Total	$	4,149,291	$	(894,453	)	$	3,254,838	$	4,126,421	$	(728,320	)	$	3,398,101

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

Year ending December 31,	Expense
2021	$	249,182
2022		220,993
2023		183,910
2024		183,910
2025		183,910
Thereafter		2,232,933
Total	$	3,254,838