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Major Customers and Concentration of Credit Risk (Tables) | 12 Months Ended
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Dec. 31, 2020
Risks and Uncertainties [Abstract] |
Schedule of major customers and concentration risks |
Customer | 2020 Revenue |  | % of Total Revenue |  | 2019 Revenue |  | % of Total Revenue |  | 2018 Revenue |  | % of Total Revenue
ApolloBio | $ | — |  |  | — | % |  | $ | — |  |  | — | % |  | $ | 23,000,000 |  |  | 75 | %
AstraZeneca | 170,587 |  |  | 2 |  |  | 3,194,877 |  |  | 78 |  |  | 6,850,424 |  |  | 23 |
Advaccine | 5,000,000 |  |  | 68 |  |  | — |  |  | — |  |  | — |  |  | — |
Plumbline Life Sciences, Inc. | 1,370,396 |  |  | 18 |  |  | — |  |  | — |  |  | — |  |  | — |
All other, including affiliated entities | 870,237 |  |  | 12 |  |  | 917,053 |  |  | 22 |  |  | 631,473 |  |  | 2 |
Total revenue | $ | 7,411,220 |  |  | 100 | % | 1 | $ | 4,111,930 |  |  | 100 | % |  | $ | 30,481,897 |  |  | 100 | %

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