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Segment Reporting and Concentrations - Additional information (Details) | 12 Months Ended
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Dec. 31, 2020 segment client | Dec. 31, 2019 client
Segment Reporting Information [Line Items] |  |
Number of Reportable Segments | segment | 3 |
Sales Revenue, Net [Member] |  |
Segment Reporting Information [Line Items] |  |
Concentration Risk, Percentage |  | 10.00%
Foreign Customer [Member] | Sales Revenue, Net [Member] |  |
Segment Reporting Information [Line Items] |  |
Concentration Risk, Percentage | 54.00% | 55.00%
Foreign Customer [Member] | Accounts receivable |  |
Segment Reporting Information [Line Items] |  |
Concentration Risk, Percentage | 55.00% | 60.00%
One Client [Member] | Sales Revenue, Net [Member] |  |
Segment Reporting Information [Line Items] |  |
Number of clients | 1 | 1
Concentration Risk, Percentage | 14.00% | 16.00%
Three Clients [Member] | Accounts receivable |  |
Segment Reporting Information [Line Items] |  |
Number of clients | 3 | 3
Concentration Risk, Percentage | 36.00% | 44.00%
Client [Member] | Sales Revenue, Net [Member] |  |
Segment Reporting Information [Line Items] |  |
Number of clients | 0 |
Concentration Risk, Percentage | 10.00% |
Client [Member] | Accounts receivable |  |
Segment Reporting Information [Line Items] |  |
Number of clients | 0 |
Concentration Risk, Percentage | 10.00% |

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- Definition For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division. + References Reference 1: 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 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6351-108592 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13531-108611 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13537-108611 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=99393423&loc=d3e6404-108592 + Details
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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599 + Details
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