Note 13 - Segment and Related Information (Tables)

9 Months Ended

Sep. 30, 2022

Notes Tables

Schedule of Segment Reporting Information, by Segment [Table Text Block]

	Three Months Ended September 30, 2022
	Commercial Air Handling		Industrial And Transportation Products		Corporate and Other			Consolidated
Sales	$	11,485,339	$	20,704,284	$	-		$	32,189,623
Gross Profit		2,558,998		3,750,805		-			6,309,803
Operating Income		1,522,819		1,132,485		(655,626	)		1,999,678
Pretax Income		1,522,819		986,173		(746,794	)		1,762,198
Net Income		1,088,816		699,678		(533,949	)		1,254,545

	Three Months Ended September 30, 2021
	Commercial Air Handling		Industrial And Transportation Products		Corporate and Other			Consolidated
Sales	$	8,854,347	$	17,543,510	$	-		$	26,397,857
Gross Profit		1,420,320		3,977,389		-			5,397,709
Operating Income		291,729		1,603,125		(26,073	)		1,868,781
Pretax Income		297,692		1,734,115		(540,407	)		1,491,400
Net Income		223,269		1,379,982		(405,374	)		1,197,877

	Nine Months Ended September 30, 2022
	Commercial Air Handling		Industrial And Transportation Products		Corporate and Other			Consolidated
Sales	$	34,888,594	$	60,205,802	$	-		$	95,094,396
Gross Profit		7,641,794		11,802,906		-			19,444,700
Operating Income		4,467,716		4,254,106		(2,949,295	)		5,772,527
Pretax Income		4,467,716		3,916,265		(3,385,022	)		4,998,959
Net Income		3,194,417		2,717,548		(2,420,281	)		3,491,684

	Nine Months Ended September 30, 2021
	Commercial Air Handling		Industrial And Transportation Products		Corporate and Other			Consolidated
Sales	$	27,591,991	$	49,249,754	$	-		$	76,841,745
Gross Profit		5,681,179		11,499,037		706			17,180,922
Operating Income		2,182,452		4,687,388		(555,802	)		6,314,038
Pretax Income		2,188,415		4,417,620		148,780			6,754,815
Net Income		1,641,311		3,471,748		475,540			5,588,599