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Revenue (Tables) | 9 Months Ended
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Sep. 30, 2024
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, 2024 |  |  | September 30, 2023 |
|  | Treatment |  |  | Services |  |  | Total |  |  | Treatment |  |  | Services |  |  | Total |
Fixed price |  | $ | 9,064 |  |  | $ | 6,396 |  |  | $ | 15,460 |  |  | $ | 10,795 |  |  | $ | 10,188 |  |  | $ | 20,983 |
Time and materials |  |  | — |  |  |  | 1,352 |  |  |  | 1,352 |  |  |  | — |  |  |  | 894 |  |  |  | 894 |
Total |  | $ | 9,064 |  |  | $ | 7,748 |  |  | $ | 16,812 |  |  | $ | 10,795 |  |  | $ | 11,082 |  |  | $ | 21,877 |
Revenue by Contract Type |  |  |  |  |  |
(In thousands) |  | Nine Months Ended |  |  | Nine Months Ended |
|  | September 30, 2024 |  |  | September 30, 2023 |
|  | Treatment |  |  | Services |  |  | Total |  |  | Treatment |  |  | Services |  |  | Total |
Fixed price |  | $ | 26,116 |  |  | $ | 15,405 |  |  | $ | 41,521 |  |  | $ | 33,223 |  |  | $ | 29,995 |  |  | $ | 63,218 |
Time and materials |  |  | — |  |  |  | 2,894 |  |  |  | 2,894 |  |  |  | — |  |  |  | 3,798 |  |  |  | 3,798 |
Total |  | $ | 26,116 |  |  | $ | 18,299 |  |  | $ | 44,415 |  |  | $ | 33,223 |  |  | $ | 33,793 |  |  | $ | 67,016 |
Revenue by generator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(In thousands) |  | Three Months Ended |  |  | Three Months Ended |
|  | September 30, 2024 |  |  | September 30, 2023 |
|  | Treatment |  |  | Services |  |  | Total |  |  | Treatment |  |  | Services |  |  | Total |
Domestic government |  | $ | 6,578 |  |  | $ | 7,346 |  |  | $ | 13,924 |  |  | $ | 7,095 |  |  | $ | 8,444 |  |  | $ | 15,539 |
Domestic commercial |  |  | 2,229 |  |  |  | 312 |  |  |  | 2,541 |  |  |  | 3,450 |  |  |  | 2,170 |  |  |  | 5,620 |
Foreign government |  |  | — |  |  |  | 65 |  |  |  | 65 |  |  |  | 250 |  |  |  | 445 |  |  |  | 695 |
Foreign commercial |  |  | 257 |  |  |  | 25 |  |  |  | 282 |  |  |  | — |  |  |  | 23 |  |  |  | 23 |
Total |  | $ | 9,064 |  |  | $ | 7,748 |  |  | $ | 16,812 |  |  | $ | 10,795 |  |  | $ | 11,082 |  |  | $ | 21,877 |
Revenue by generator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(In thousands) |  | Nine Months Ended |  |  | Nine Months Ended |
|  | September 30, 2024 |  |  | September 30, 2023 |
|  | Treatment |  |  | Services |  |  | Total |  |  | Treatment |  |  | Services |  |  | Total |
Domestic government |  | $ | 18,997 |  |  | $ | 17,129 |  |  | $ | 36,126 |  |  | $ | 24,160 |  |  | $ | 29,603 |  |  | $ | 53,763 |
Domestic commercial |  |  | 6,045 |  |  |  | 867 |  |  |  | 6,912 |  |  |  | 7,925 |  |  |  | 3,509 |  |  |  | 11,434 |
Foreign government |  |  | 1 |  |  |  | 232 |  |  |  | 233 |  |  |  | 1,002 |  |  |  | 615 |  |  |  | 1,617 |
Foreign commercial |  |  | 1,073 |  |  |  | 71 |  |  |  | 1,144 |  |  |  | 136 |  |  |  | 66 |  |  |  | 202 |
Total |  | $ | 26,116 |  |  | $ | 18,299 |  |  | $ | 44,415 |  |  | $ | 33,223 |  |  | $ | 33,793 |  |  | $ | 67,016 |
Schedule of Contract Balances | Schedule of Contract Balances
(In thousands) |  | September 30, 2024 |  |  | December 31, 2023 |  |  | Change ($) |  |  | Change (%) |
Contract assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unbilled receivables - current |  | $ | 7,277 |  |  | $ | 8,432 |  |  | $ | (1,155 | ) |  |  | -14 | %
Contract liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred revenue |  | $ | 5,398 |  |  | $ | 6,815 |  |  | $ | (1,417 | ) |  |  | -20.8 | %
(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 | %
Schedule of Changes in Accounts Receivable, Net of Credit Losses | The following table represents changes in accounts receivable, net of credit losses, for the periods noted: Schedule of Changes in Accounts Receivable, Net of Credit Losses
(In thousands) |  | September 30, 2024 |  |  | December 31, 2023 |  |  | Change ($) |  |  | Change (%) |
Accounts Receivable (net) |  | $ | 8,741 |  |  | $ | 9,722 |  |  | $ | (981 | ) |  |  | -10.1 | %
|  | September 30, 2023 |  |  | December 31, 2022 |  |  | Change ($) |  |  | Change (%) |
Accounts Receivable (net) |  | $ | 15,342 |  |  | $ | 9,364 |  |  | $ | 5,978 |  |  |  | 63.8 | %

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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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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 + Details
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