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Note 11 - Business Segment and Geographic Financial Data | 6 Months Ended
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Jun. 30, 2022
Notes to Financial Statements |
Segment Reporting Disclosure [Text Block] | 11. 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 Over-Fire Air systems, NOxOUT® and HERT™ Selective Non-Catalytic Reduction systems, and Selective Catalytic Reduction (SCR) systems. Our SCR systems can also include Ammonia Injection Grid, and Graduated Straightening Grid GSG™ 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. Electrostatic Precipitator technologies make use of electrostatic precipitator products and services to reduce particulate matter. Flue Gas Conditioning 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 Computational Fluid Dynamics and Chemical Kinetics Modeling boiler modeling, for the control of slagging, fouling, corrosion, opacity and other sulfur trioxide-related issues in 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 reviewing 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 (Note 1 in our annual report on Form 10-K). 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 operations are provided below:
|  | Air Pollution |  |  | FUEL CHEM |  |  |  |  |  |  |  |  |
Three months ended June 30, 2022 |  | Control Segment |  |  | Segment |  |  | Other |  |  | Total |
Revenues from external customers |  | $ | 2,738 |  |  | $ | 3,630 |  |  | $ | — |  |  | $ | 6,368 |
Cost of sales |  |  | (1,802 | ) |  |  | (1,888 | ) |  |  | — |  |  |  | (3,690 | )
Gross margin |  |  | 936 |  |  |  | 1,742 |  |  |  | — |  |  |  | 2,678 |
Selling, general and administrative |  |  | — |  |  |  | — |  |  |  | (2,874 | ) |  |  | (2,874 | )
Research and development |  |  | — |  |  |  | — |  |  |  | (289 | ) |  |  | (289 | )
Operating income (loss) from operations |  | $ | 936 |  |  | $ | 1,742 |  |  | $ | (3,163 | ) |  | $ | (485 | )
|  | Air Pollution |  |  | FUEL CHEM |  |  |  |  |  |  |  |  |
Three months ended June 30, 2021 |  | Control Segment |  |  | Segment |  |  | Other |  |  | Total |
Revenues from external customers |  | $ | 986 |  |  | $ | 4,232 |  |  | $ | — |  |  | $ | 5,218 |
Cost of sales |  |  | (507 | ) |  |  | (2,128 | ) |  |  | — |  |  |  | (2,635 | )
Gross margin |  |  | 479 |  |  |  | 2,104 |  |  |  | — |  |  |  | 2,583 |
Selling, general and administrative |  |  | — |  |  |  | — |  |  |  | (2,957 | ) |  |  | (2,957 | )
Research and development |  |  | — |  |  |  | — |  |  |  | (315 | ) |  |  | (315 | )
Operating income (loss) from operations |  | $ | 479 |  |  | $ | 2,104 |  |  | $ | (3,272 | ) |  | $ | (689 | )
|  | Air Pollution |  |  | FUEL CHEM |  |  |  |  |  |  |  |  |
Six months ended June 30, 2022 |  | Control Segment |  |  | Segment |  |  | Other |  |  | Total |
Revenues from external customers |  | $ | 4,942 |  |  | $ | 6,961 |  |  | $ | — |  |  | $ | 11,903 |
Cost of sales |  |  | (3,231 | ) |  |  | (3,704 | ) |  |  | — |  |  |  | (6,935 | )
Gross margin |  |  | 1,711 |  |  |  | 3,257 |  |  |  | — |  |  |  | 4,968 |
Selling, general and administrative |  |  | — |  |  |  | — |  |  |  | (5,928 | ) |  |  | (5,928 | )
Research and development |  |  | — |  |  |  | — |  |  |  | (509 | ) |  |  | (509 | )
Operating income (loss) from operations |  | $ | 1,711 |  |  | $ | 3,257 |  |  | $ | (6,437 | ) |  | $ | (1,469 | )
|  | Air Pollution |  |  | FUEL CHEM |  |  |  |  |  |  |  |  |
Six months ended June 30, 2021 |  | Control Segment |  |  | Segment |  |  | Other |  |  | Total |
Revenues from external customers |  | $ | 1,893 |  |  | $ | 8,358 |  |  | $ | — |  |  | $ | 10,251 |
Cost of sales |  |  | (1,038 | ) |  |  | (4,272 | ) |  |  | — |  |  |  | (5,310 | )
Gross margin |  |  | 855 |  |  |  | 4,086 |  |  |  | — |  |  |  | 4,941 |
Selling, general and administrative |  |  | — |  |  |  | — |  |  |  | (6,057 | ) |  |  | (6,057 | )
Research and development |  |  | — |  |  |  | — |  |  |  | (730 | ) |  |  | (730 | )
Operating income (loss) from operations |  | $ | 855 |  |  | $ | 4,086 |  |  | $ | (6,787 | ) |  | $ | (1,846 | )
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.
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 30, |  |  | June 30, |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States |  | $ | 4,279 |  |  | $ | 4,588 |  |  | $ | 7,967 |  |  | $ | 9,051 |
Foreign |  |  | 2,089 |  |  |  | 630 |  |  |  | 3,936 |  |  |  | 1,200 |
|  | $ | 6,368 |  |  | $ | 5,218 |  |  | $ | 11,903 |  |  | $ | 10,251 |
|  | June 30, |  |  | December 31, |
|  | 2022 |  |  | 2021 |
Assets: |  |  |  |  |  |  |  |
United States |  | $ | 45,934 |  |  | $ | 46,271 |
Foreign |  |  | 3,184 |  |  |  | 3,703 |
|  | $ | 49,118 |  |  | $ | 49,974 |

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8924-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8981-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8721-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9031-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8844-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9038-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e9054-108599 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 15 -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8657-108599 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8721-108599 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI https://asc.fasb.org/topic&trid=2134510 + Details
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