Note 5 - Goodwill and Other Intangible Assets, Net (Tables)

9 Months Ended

Sep. 30, 2022

Notes Tables

Schedule of Goodwill [Table Text Block]

	September 30,			December 31,
	2022			2021
Commercial Air Handling Equipment Segment:
Beginning Balance	$	478,256		$	478,256
Acquisitions		-			-
Adjustments		-			-
Ending Balance	$	478,256		$	478,256
Industrial and Transportation Products Segment:
Beginning Balance	$	13,926,362		$	11,027,596
Acquisitions		1,922,513			2,898,766
Adjustments		(169,854	)		-
Ending Balance	$	15,679,021		$	13,926,362
Total Company:
Beginning Balance	$	14,404,618		$	11,505,852
Acquisitions		1,922,513			2,898,766
Adjustments		(169,854	)		-
Ending Balance	$	16,157,277		$	14,404,618

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

	September 30,		December 31,
	2022		2021
Customer list intangibles	$	9,316,000	$	8,741,000
Non-compete agreements		200,000		200,000
Trademarks		4,474,149		3,599,149
Total intangible assets		13,990,149		12,540,149
Less: accumulated amortization		4,160,437		3,203,585
Intangible assets, net	$	9,829,712	$	9,336,564