Note 12 - Business Segment and Geographic Financial Data

12 Months Ended

Dec. 31, 2023

Notes to Financial Statements

Segment Reporting Disclosure [Text Block]

12.     BUSINESS SEGMENT AND GEOGRAPHIC FINANCIAL DATA

Business Segment Financial Data

We segregate our financial results into two reportable segments representing two broad technology segments as follows:

• The Air Pollution Control technology segment includes technologies to reduce NOx emissions in flue gas generated by the firing of natural gas or coal from boilers, incinerators, furnaces and other stationary combustion sources. These include NOxOUT^® and HERT™ Selective Non-Catalytic Reduction systems and Selective Catalytic Reduction (SCR) systems. Our SCR systems can also include Ammonia Injection Grid, and GSG™ Graduated Straightening Grid systems to provide high NOx reductions at significantly lower capital and operating costs than conventional SCR systems. ULTRA^® technology creates ammonia at a plant site using safe urea for use with any SCR application. ESP technologies make use of electrostatic precipitator products and services to reduce particulate matter. FGC systems are chemical injection systems offered in markets outside the U.S. and Canada to enhance electrostatic precipitator and fabric filter performance in controlling particulate emissions.

• The FUEL CHEM^® technology segment, which uses chemical processes in combination with advanced CFD and CKM boiler modeling, for the control of slagging, fouling, corrosion, opacity and other sulfur trioxide-related issues in coal-fired furnaces and boilers through the addition of chemicals into the furnace using TIFI^® Targeted In-Furnace Injection™ technology.

The “Other” classification includes those profit and loss items not allocated to either reportable segment. There are no inter-segment sales that require elimination.

We evaluate performance and allocate resources based on gross margin by reportable segment. The accounting policies of the reportable segments are the same as those described in the summary of significant accounting policies. We do not review assets by reportable segment, but rather, in aggregate for the Company as a whole.

Information about reporting segment net sales and gross margin from continuing operations are provided below:

For the year ended December 31, 2023	Air Pollution Control Segment			FUEL CHEM Segment			Other			Total
Revenues from external customers	$	13,483		$	13,598		$	—		$	27,081
Cost of sales		(8,410	)		(7,015	)		—			(15,425	)
Gross margin		5,073			6,583			—			11,656
Selling, general and administrative		—			—			(12,803	)		(12,803	)
Research and development		—			—			(1,511	)		(1,511	)
Operating income (loss) from continuing operations	$	5,073		$	6,583		$	(14,314	)	$	(2,658	)

For the year ended December 31, 2022	Air Pollution Control Segment			FUEL CHEM Segment			Other			Total
Revenues from external customers	$	10,597		$	16,344		$	—		$	26,941
Cost of sales		(6,924	)		(8,374	)		—			(15,298	)
Gross margin		3,673			7,970			—			11,643
Selling, general and administrative		—			—			(12,275	)		(12,275	)
Research and development		—			—			(895	)		(895	)
Operating income (loss) from continuing operations	$	3,673		$	7,970		$	(13,170	)	$	(1,527	)

Geographic Segment Financial Data

Information concerning our operations by geographic area is provided below. Revenues are attributed to countries based on the location of the end-user. Assets are those directly associated with operations of the geographic area.

For the years ended December 31,	2023		2022
Revenues:
United States	$	21,062	$	20,311
Foreign		6,019		6,630
	$	27,081	$	26,941

As of December 31,	2023		2022
Assets:
United States	$	46,487	$	47,007
Foreign		3,901		3,117
	$	50,388	$	50,124