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Summary of Significant Accounting Policies - (Tables) | 9 Months Ended
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Sep. 30, 2020
Accounting Policies [Abstract] |
Schedule of Concentration of Risk, by Risk Factor and Significant Payer | For each significant payer and customer, revenue as a percentage of total revenue and accounts receivable as a percentage of total accounts receivable are as follows:
|  | Revenue
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2020 |  | 2019 |  | 2020 |  | 2019
Medicare |  | 20 | % |  | 25 | % |  | 21 | % |  | 26 | %
Janssen (SIMPONI®) |  | 13 | % |  | * |  | 12 | % |  | *
Blue Shield |  | 12 | % |  | 13 | % |  | 12 | % |  | 13 | %
Medicare Advantage |  | 11 | % |  | 12 | % |  | 11 | % |  | 11 | %
United Healthcare |  | * |  | 10 | % |  | * |  | 10 | %
|  |  |  | Accounts Receivable
|  |  |  | September 30, 2020 |  | December 31, 2019
Janssen (SIMPONI®) |  |  |  | 37 | % |  | 19 | %
Anthem Blue Cross Blue Shield |  |  |  | 12 | % |  | *
Blue Shield |  |  |  | 10 | % |  | 15 | %
United Healthcare |  |  |  | * |  | 22 | %
* |  | Less than 10%.
Disaggregation of Revenue | The following table includes the Company's revenues as disaggregated by payer and customer category (in thousands):
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2020 |  | 2019 |  | 2020 |  | 2019
Revenue: |  |  |  |  |  |  |  |
Healthcare insurers |  | $ | 5,749 |  |  | $ | 6,188 |  |  | $ | 15,949 |  |  | $ | 17,716 |
Government |  | 2,184 |  |  | 2,665 |  |  | 6,236 |  |  | 7,964 |
Client |  | 1,260 |  |  | 1,007 |  |  | 3,088 |  |  | 3,200 |
Other(1) |  | 235 |  |  | 148 |  |  | 636 |  |  | 458 |
Janssen (SIMPONI®) |  | 1,347 |  |  | 431 |  |  | 3,398 |  |  | 835 |
Total revenue |  | $ | 10,775 |  |  | $ | 10,439 |  |  | $ | 29,307 |  |  | $ | 30,173 |
(1)Includes patient self-pay that is immaterial.
Schedule of Restricted Cash and Cash Equivalents | Cash, cash equivalents and restricted cash presented in the accompanying condensed statements of cash flows consist of the following (in thousands):
|  |  |  | September 30, 2020 |  | December 31, 2019
Cash and cash equivalents |  |  |  | $ | 61,434 |  |  | $ | 72,084 |
Restricted cash |  |  |  | 100 |  |  | 100 |
|  |  |  | $ | 61,534 |  |  | $ | 72,184 |
Schedule of Cash and Cash Equivalents | Cash, cash equivalents and restricted cash presented in the accompanying condensed statements of cash flows consist of the following (in thousands):
|  |  |  | September 30, 2020 |  | December 31, 2019
Cash and cash equivalents |  |  |  | $ | 61,434 |  |  | $ | 72,084 |
Restricted cash |  |  |  | 100 |  |  | 100 |
|  |  |  | $ | 61,534 |  |  | $ | 72,184 |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share | Potentially dilutive securities not included in the calculation of diluted net loss per share because to do so would be anti-dilutive are as follows (in common stock equivalent shares):
|  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  | 2020 |  | 2019 |  | 2020 |  | 2019
Warrants to purchase common stock |  | 426,827 |  |  | 461,273 |  |  | 426,827 |  |  | 461,273 |
Common stock options |  | 1,975,250 |  |  | 1,475,006 |  |  | 1,975,250 |  |  | 1,475,006 |
Total |  | 2,402,077 |  |  | 1,936,279 |  |  | 2,402,077 |  |  | 1,936,279 |

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