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Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Net revenues | $ 30,172 | $ 22,535 | $ 77,079 | $ 51,378
Fixed Price [Member] |  |  |  |
Net revenues | 17,369 | 15,445 | 43,470 | 39,310
Time and Materials [Member] |  |  |  |
Net revenues | 12,803 | 7,090 | 33,609 | 12,068
Treatment [Member] |  |  |  |
Net revenues | 7,066 | 10,081 | 24,469 | 30,079
Treatment [Member] | Fixed Price [Member] |  |  |  |
Net revenues | 7,066 | 10,081 | 24,469 | 30,079
Treatment [Member] | Time and Materials [Member] |  |  |  |
Net revenues |  |  |  |
Services [Member] |  |  |  |
Net revenues | 23,106 | 12,454 | 52,610 | 21,299
Services [Member] | Fixed Price [Member] |  |  |  |
Net revenues | 10,303 | 5,364 | 19,001 | 9,231
Services [Member] | Time and Materials [Member] |  |  |  |
Net revenues | 12,803 | 7,090 | 33,609 | 12,068
Domestic Government [Member] |  |  |  |
Net revenues | 26,994 | 17,692 | 67,328 | 37,669
Domestic Government [Member] | Treatment [Member] |  |  |  |
Net revenues | 5,334 | 7,537 | 19,079 | 21,986
Domestic Government [Member] | Services [Member] |  |  |  |
Net revenues | 21,660 | 10,155 | 48,249 | 15,683
Domestic Commercial [Member] |  |  |  |
Net revenues | 2,057 | 3,010 | 6,608 | 9,897
Domestic Commercial [Member] | Treatment [Member] |  |  |  |
Net revenues | 1,598 | 2,535 | 5,256 | 7,809
Domestic Commercial [Member] | Services [Member] |  |  |  |
Net revenues | 459 | 475 | 1,352 | 2,088
Foreign Government [Member] |  |  |  |
Net revenues | 1,100 | 1,804 | 3,079 | 3,685
Foreign Government [Member] | Treatment [Member] |  |  |  |
Net revenues | 134 |  | 134 | 220
Foreign Government [Member] | Services [Member] |  |  |  |
Net revenues | 966 | 1,804 | 2,945 | 3,465
Foreign Commercial [Member] |  |  |  |
Net revenues | 21 | 29 | 64 | 127
Foreign Commercial [Member] | Treatment [Member] |  |  |  |
Net revenues |  | 9 |  | 64
Foreign Commercial [Member] | Services [Member] |  |  |  |
Net revenues | $ 21 | $ 20 | $ 64 | $ 63

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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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