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Revenue (Tables) | 9 Months Ended
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Sep. 30, 2023
Revenue from Contract with Customer [Abstract] |
Schedule of Disaggregation of Revenue | Schedule of Disaggregation of Revenue
Revenue by Contract Type |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(In thousands) |  | Three Months Ended |  |  | Three Months Ended |
|  | September 30, 2023 |  |  | September 30, 2022 |
|  | Treatment |  |  | Services |  |  | Total |  |  | Treatment |  |  | Services |  |  | Total |
Fixed price |  | $ | 10,795 |  |  | $ | 10,188 |  |  | $ | 20,983 |  |  | $ | 8,877 |  |  | $ | 6,892 |  |  | $ | 15,769 |
Time and materials |  |  | - |  |  |  | 894 |  |  |  | 894 |  |  |  | - |  |  |  | 2,703 |  |  |  | 2,703 |
Total |  | $ | 10,795 |  |  | $ | 11,082 |  |  | $ | 21,877 |  |  | $ | 8,877 |  |  | $ | 9,595 |  |  | $ | 18,472 |
Revenue by Contract Type |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(In thousands) |  | Nine Months Ended |  |  | Nine Months Ended |
|  | September 30, 2023 |  |  | September 30, 2022 |
|  | Treatment |  |  | Services |  |  | Total |  |  | Treatment |  |  | Services |  |  | Total |
Fixed price |  | $ | 33,223 |  |  | $ | 29,995 |  |  | $ | 63,218 |  |  | $ | 24,749 |  |  | $ | 20,569 |  |  | $ | 45,318 |
Time and materials |  |  | - |  |  |  | 3,798 |  |  |  | 3,798 |  |  |  | - |  |  |  | 8,524 |  |  |  | 8,524 |
Total |  | $ | 33,223 |  |  | $ | 33,793 |  |  | $ | 67,016 |  |  | $ | 24,749 |  |  | $ | 29,093 |  |  | $ | 53,842 |
Revenue |  | $ | 33,223 |  |  | $ | 33,793 |  |  | $ | 67,016 |  |  | $ | 24,749 |  |  | $ | 29,093 |  |  | $ | 53,842 |
Revenue by generator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(In thousands) |  | Three Months Ended |  |  | Three Months Ended |
|  | September 30, 2023 |  |  | September 30, 2022 |
|  | Treatment |  |  | Services |  |  | Total |  |  | Treatment |  |  | Services |  |  | Total |
Domestic government |  | $ | 7,095 |  |  | $ | 8,444 |  |  | $ | 15,539 |  |  | $ | 5,728 |  |  | $ | 9,264 |  |  | $ | 14,992 |
Domestic commercial |  |  | 3,450 |  |  |  | 2,170 |  |  |  | 5,620 |  |  |  | 2,806 |  |  |  | 313 |  |  |  | 3,119 |
Foreign government |  |  | 250 |  |  |  | 445 |  |  |  | 695 |  |  |  | 287 |  |  |  | - |  |  |  | 287 |
Foreign commercial |  |  | - |  |  |  | 23 |  |  |  | 23 |  |  |  | 56 |  |  |  | 18 |  |  |  | 74 |
Total |  | $ | 10,795 |  |  | $ | 11,082 |  |  | $ | 21,877 |  |  | $ | 8,877 |  |  | $ | 9,595 |  |  | $ | 18,472 |
Revenue by generator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(In thousands) |  | Nine Months Ended |  |  | Nine Months Ended |
|  | September 30, 2023 |  |  | September 30, 2022 |
|  | Treatment |  |  | Services |  |  | Total |  |  | Treatment |  |  | Services |  |  | Total |
Domestic government |  | $ | 24,160 |  |  | $ | 29,603 |  |  | $ | 53,763 |  |  | $ | 17,786 |  |  | $ | 28,158 |  |  | $ | 45,944 |
Domestic commercial |  |  | 7,925 |  |  |  | 3,509 |  |  |  | 11,434 |  |  |  | 6,045 |  |  |  | 859 |  |  |  | 6,904 |
Foreign government |  |  | 1,002 |  |  |  | 615 |  |  |  | 1,617 |  |  |  | 532 |  |  |  | 12 |  |  |  | 544 |
Foreign commercial |  |  | 136 |  |  |  | 66 |  |  |  | 202 |  |  |  | 386 |  |  |  | 64 |  |  |  | 450 |
Total |  | $ | 33,223 |  |  | $ | 33,793 |  |  | $ | 67,016 |  |  | $ | 24,749 |  |  | $ | 29,093 |  |  | $ | 53,842 |
Revenue |  | $ | 33,223 |  |  | $ | 33,793 |  |  | $ | 67,016 |  |  | $ | 24,749 |  |  | $ | 29,093 |  |  | $ | 53,842 |
Schedule of Contract Liabilities | The timing of revenue recognition and billings results in unbilled receivables (contract assets). The Company’s contract liabilities consist of deferred revenues which represent payment from customers in advance of the completion of our performance obligation. The following table represents changes in our contract assets and contract liabilities balances. Our deferred revenue balance at September 30, 2023 included a $2,500,000 invoice to a certain customer for a waste treatment project which is expected to commence and be completed in 2024. Schedule of Contract Liabilities
|  |  |  |  |  |  |  | Year-to-date |  |  | Year-to-date |
(In thousands) |  | September 30, 2023 |  |  | December 31, 2022 |  |  | Change ($) |  |  | Change (%) |
Contract assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unbilled receivables - current |  | $ | 9,336 |  |  | $ | 6,062 |  |  | $ | 3,274 |  |  |  | 54.0 | %
Contract liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred revenue |  | $ | 7,765 |  |  | $ | 4,813 |  |  | $ | 2,952 |  |  |  | 61.3 | %

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -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 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479806/606-10-50-5 + Details
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