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Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Net revenues | $ 105,426 | $ 73,459
Fixed Price [Member] |  |
Net revenues | 39,113 | 52,526
Time and Materials [Member] |  |
Net revenues | 66,313 | 20,788
Cost Reimbursement [Member] |  |
Net revenues |  | 145
Treatment [Member] |  |
Net revenues | 30,143 | 40,364
Treatment [Member] | Fixed Price [Member] |  |
Net revenues | 30,143 | 40,364
Treatment [Member] | Time and Materials [Member] |  |
Net revenues |  |
Treatment [Member] | Cost Reimbursement [Member] |  |
Net revenues |  |
Services [Member] |  |
Net revenues | 75,283 | 33,095
Services [Member] | Fixed Price [Member] |  |
Net revenues | 8,970 | 12,162
Services [Member] | Time and Materials [Member] |  |
Net revenues | 66,313 | 20,788
Services [Member] | Cost Reimbursement [Member] |  |
Net revenues |  | 145
Domestic Government [Member] |  |
Net revenues | 91,032 | 54,497
Domestic Government [Member] | Treatment [Member] |  |
Net revenues | 22,795 | 29,420
Domestic Government [Member] | Services [Member] |  |
Net revenues | 68,237 | 25,077
Domestic Commercial [Member] |  |
Net revenues | 8,758 | 13,325
Domestic Commercial [Member] | Treatment [Member] |  |
Net revenues | 6,933 | 10,601
Domestic Commercial [Member] | Services [Member] |  |
Net revenues | 1,825 | 2,724
Foreign Government [Member] |  |
Net revenues | 5,550 | 5,488
Foreign Government [Member] | Treatment [Member] |  |
Net revenues | 415 | 279
Foreign Government [Member] | Services [Member] |  |
Net revenues | 5,135 | 5,209
Foreign Commercial [Member] |  |
Net revenues | 86 | 149
Foreign Commercial [Member] | Treatment [Member] |  |
Net revenues |  | 64
Foreign Commercial [Member] | Services [Member] |  |
Net revenues | $ 86 | $ 85

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
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