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Balance Sheet Components | 3 Months Ended
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Mar. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Balance Sheet Components | BALANCE SHEET COMPONENTS Inventory Inventory consisted of the following (in thousands):
| March 31, 2021 |  | December 31, 2020
Finished goods | $ | 2,416 |  |  | $ | 1,702 |
Work in progress | 3,210 |  |  | 2,936 |
Raw materials | 8,095 |  |  | 5,374 |
Total inventory | $ | 13,721 |  |  | $ | 10,012 |
Accrued and Other Liabilities Accrued and other liabilities consisted of the following (in thousands):
| March 31, 2021 |  | December 31, 2020
Deferred revenue | $ | 3,522 |  |  | $ | 3,530 |
Clinical studies | 7,023 |  |  | 6,733 |
Deferred payments for intangible assets | 2,000 |  |  | 2,000 |
Short-term lease liability | 3,126 |  |  | 2,033 |
Test sample processing fees | 505 |  |  | 416 |
Accrued royalty | 1,342 |  |  | 1,072 |
Contingent consideration | 694 |  |  | 738 |
Professional fees | 2,393 |  |  | 1,529 |
Other accrued expenses | 3,033 |  |  | 2,551 |
Total accrued and other liabilities | $ | 23,638 |  |  | $ | 20,602 |
CMS Accelerated and Advance Payment Program for Medicare Providers On March 27, 2020, the U.S. government enacted the CARES Act. Pursuant to the CARES Act, CMS expanded its Accelerated and Advance Payment Program in order to increase cash flow to providers of services and suppliers impacted by the COVID-19 pandemic. CMS was authorized to provide accelerated or advance payments during the period of the public health emergency to any Medicare provider who submitted a request to the appropriate Medicare Administrative Contractor and met the required qualifications. During April 2020, the Company received an advance payment from CMS of approximately $20.5 million and recorded the payment as Deferred revenue - CMS advance payment on the Company's condensed consolidated balance sheet. During December 2020, the Company reassessed the Deferred revenue - CMS advance payment and repaid the entire amount in January 2021. The Company recorded the amount as Refund liability - CMS advance payment on the condensed consolidated balance sheet as of December 31, 2020.

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -URI http://asc.fasb.org/topic&trid=2122208 + Details
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