Note 3 - Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Schedule of Intangible Assets and Goodwill [Table Text Block]

	Patents			Trade Name			Technology & Software			Customer Relationships			Total
Gross carrying amount	$	16,000		$	844,169		$	622,874		$	4,952,537		$	6,435,580
Accumulated amortization		(16,000	)		(799,022	)		(622,874	)		(1,708,856	)		(3,146,752	)
	$	-		$	45,147		$	-		$	3,243,681		$	3,288,828

	Patents			Trade Name			Technology & Software			Customer Relationships			Total
Gross carrying amount	$	16,000		$	839,816		$	620,094		$	4,928,102		$	6,404,012
Accumulated amortization		(16,000	)		(668,929	)		(620,094	)		(1,465,569	)		(2,770,592	)
	$	-		$	170,887		$	-		$	3,462,533		$	3,633,420