XML 19 R10.htm IDEA: XBRL DOCUMENT
v3.23.1

Note 3 - Revenue | 3 Months Ended
--- | ---
Mar. 31, 2023
Notes to Financial Statements |
Revenue from Contract with Customer [Text Block] | 3. Revenue Disaggregated Revenue by Product Technology The following table presents our revenues disaggregated by product technology:
|  | Three Months Ended |
|  | March 31, |
|  | 2023 |  |  | 2022 |
Air Pollution Control |  |  |  |  |  |  |  |
Technology solutions |  | $ | 2,982 |  |  | $ | 1,841 |
Spare parts |  |  | 174 |  |  |  | 96 |
Ancillary revenue |  |  | 403 |  |  |  | 267 |
Total Air Pollution Control technology revenues |  |  | 3,559 |  |  |  | 2,204 |
FUEL CHEM |  |  |  |  |  |  |  |
FUEL CHEM technology solutions |  |  | 3,728 |  |  |  | 3,331 |
Total Revenues |  | $ | 7,287 |  |  | $ | 5,535 |
Disaggregated Revenue by Geography The following table presents our revenues disaggregated by geography, based on the location of the end-user:
|  | Three Months Ended |
|  | March 31, |
|  | 2023 |  |  | 2022 |
United States |  | $ | 5,981 |  |  | $ | 3,688 |
Foreign Revenues |  |  |  |  |  |  |  |
Latin America |  |  | — |  |  |  | 69 |
Europe |  |  | 579 |  |  |  | 404 |
Asia |  |  | 727 |  |  |  | 1,374 |
Total Foreign Revenues |  |  | 1,306 |  |  |  | 1,847 |
Total Revenues |  | $ | 7,287 |  |  | $ | 5,535 |
Timing of Revenue Recognition The following table presents the timing of our revenue recognition:
|  | Three Months Ended |
|  | March 31, |
|  | 2023 |  |  | 2022 |
Products transferred at a point in time |  | $ | 4,305 |  |  | $ | 3,694 |
Products and services transferred over time |  |  | 2,982 |  |  |  | 1,841 |
Total Revenues |  | $ | 7,287 |  |  | $ | 5,535 |
Contract Balances The timing of revenue recognition, billings, and cash collections results in billed accounts receivable, unbilled receivables (contract assets), and customer advances and deposits (contract liabilities) on the Condensed Consolidated Balance Sheets. In our Air Pollution Control (APC) technology segment, amounts are billed as work progresses in accordance with agreed-upon contractual terms. Generally, billing occurs subsequent to revenue recognition, resulting in contract assets. For the FUEL CHEM technology segment, deliveries made in the current period but billed in subsequent periods are also considered unbilled receivables (contract assets). These assets are reported on the Condensed Consolidated Balance Sheets on a contract-by-contract basis at the end of each reporting period. At March 31, 2023, December 31, 2022, and December 31, 2021, contract assets for APC technology projects were approximately $3,444, $3,082, and $1,277, respectively. There were no contract assets for the FUEL CHEM technology segment as of March 31, 2023, December 31, 2022, and December 31, 2021. However, the Company will periodically bill in advance of costs incurred before revenue is recognized, resulting in contract liabilities. These liabilities are reported on the Condensed Consolidated Balance Sheets on a contract-by-contract basis at the end of each reporting period. Contract liabilities were $427, $372, and $390 at March 31, 2023, December 31, 2022, and December 31, 2021, respectively, and are included in other accrued liabilities on the Condensed Consolidated Balance Sheets. Changes in the contract asset and liability balances during the three-month period ended March 31, 2023, were not materially impacted by any other items other than amounts billed and revenue recognized as described previously. Revenue recognized that was included in the contract liability balance at the beginning of the period was $359 for the three months ended March 31, 2023 and $230 for three months ended March 31, 2022, which represented primarily revenue from progress towards completion of our APC technology contracts. As of March 31, 2023 and December 31, 2022, we had no construction contracts in progress that were identified as a loss contract. Remaining Performance Obligations Remaining performance obligations represents the transaction price of APC technology booked orders for which work has not been performed. As of March 31, 2023, the aggregate amount of the transaction price allocated to remaining performance obligations was $7,588. The Company expects to recognize revenue on approximately $7,277 of the remaining performance obligations over the next 12 months with the remaining recognized thereafter. Accounts Receivable The components of accounts receivable are as follows:
|  | As of |
|  | March 31, 2023 |  |  | December 31, 2022 |
Trade receivables |  | $ | 3,295 |  |  | $ | 4,605 |
Unbilled receivables |  |  | 3,444 |  |  |  | 3,082 |
Other short-term receivables |  |  | 126 |  |  |  | 152 |
Allowance for credit losses |  |  | (110 | ) |  |  | (110 | )
Total accounts receivable |  | $ | 6,755 |  |  | $ | 7,729 |

X
- References No definition available. + Details
Name: | us-gaap_DisclosureTextBlockAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-9 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-10 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-15 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-12 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-12 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-12 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-12 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-12 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-13 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Topic 606 -Publisher FASB -URI https://asc.fasb.org//606/tableOfContent + Details
Name: | us-gaap_RevenueFromContractWithCustomerTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration