Liquidity	3 Months Ended
Mar. 31, 2022
Accounting Policies [Abstract]
Liquidity	2. Liquidity As of March 31, 2022, cash totaled $27.6 million and the Company had an accumulated deficit of $269.1 million. For the year ended December 31, 2021 and the three months ended March 31, 2022, the Company incurred a net loss of $2.8 million and $2.8 million, respectively, and had cash generated from operations of $0.8 million and cash used in operations of $0.9 million for the quarters ended March 31, 2021 and 2022, respectively. At March 31, 2022, the Company had aggregate net interest-bearing indebtedness of $2.2 million related to financed capital leases, of which $1.0 million was due within one year, in addition to $13.1 million of other non-interest-bearing current liabilities. The Company has historically funded its operations primarily through sales of its equity securities. For the year ended December 31, 2021, revenue from the Company’s COVID-19 testing business provided an increase level of cash flow. During the quarter ended March 31, 2022, net revenues were approximately $19.9 million compared with approximately $17.8 million for the same period in the prior year, and the Company had a net loss of $2.8 million and net cash used in operations of $0.9 million. The Company believes that based on its current and planned cash usage, along with current and projected COVID-19 testing revenues, its cash balances will support operations through at least 12 months following the issuance of the accompanying unaudited condensed financial statements. As such, the Company determined that it is not probable based on projected cash flows that substantial doubt about the Company’s ability to continue as a going concern exists for the one-year period following the date that the financial statements for the three months ended March 31, 2022 were issued. The Company’s determination was based on estimates regarding expected COVID-19 testing volumes for which the Company is currently seeing a reduced demand and expect this trend to continue absent a negative and sustained turn in the course of the pandemic. The Company used all information currently available to make this determination. The Company’s principal uses of cash have included cash used in operations, payments relating to purchases of property and equipment and repayments of borrowings. The Company expects that the principal uses of cash in the future will be for continuing operations, marketing activities, funding of research and development, capital expenditures, and general working capital requirements. The Company will need to generate significant growth in net revenues to achieve and sustain income from operations. In order to meet its long-term operating requirements beyond the next twelve months, the Company will need, among other things, additional capital resources. Until the Company can generate significant cash from operations, including assay revenues, management’s plans to obtain such resources for the Company include proceeds from offerings of the Company’s equity securities or debt, cash received from the exercise of outstanding common stock warrants, or transactions involving product development, technology licensing or collaboration. The Company cannot provide any assurances that such additional funds will be available on reasonable terms, or at all.

Liquidity

3 Months Ended

Mar. 31, 2022

2. Liquidity

As of March 31, 2022, cash totaled $27.6 million and the Company had an accumulated deficit of $269.1 million. For the year ended December 31, 2021 and the three months ended March 31, 2022, the Company incurred a net loss of $2.8 million and $2.8 million, respectively, and had cash generated from operations of $0.8 million and cash used in operations of $0.9 million for the quarters ended March 31, 2021 and 2022, respectively. At March 31, 2022, the Company had aggregate net interest-bearing indebtedness of $2.2 million related to financed capital leases, of which $1.0 million was due within one year, in addition to $13.1 million of other non-interest-bearing current liabilities.

The Company has historically funded its operations primarily through sales of its equity securities. For the year ended December 31, 2021, revenue from the Company’s COVID-19 testing business provided an increase level of cash flow. During the quarter ended March 31, 2022, net revenues were approximately $19.9 million compared with approximately $17.8 million for the same period in the prior year, and the Company had a net loss of $2.8 million and net cash used in operations of $0.9 million. The Company believes that based on its current and planned cash usage, along with current and projected COVID-19 testing revenues, its cash balances will support operations through at least 12 months following the issuance of the accompanying unaudited condensed financial statements. As such, the Company determined that it is not probable based on projected cash flows that substantial doubt about the Company’s ability to continue as a going concern exists for the one-year period following the date that the financial statements for the three months ended March 31, 2022 were issued. The Company’s determination was based on estimates regarding expected COVID-19 testing volumes for which the Company is currently seeing a reduced demand and expect this trend to continue absent a negative and sustained turn in the course of the pandemic. The Company used all information currently available to make this determination.

The Company’s principal uses of cash have included cash used in operations, payments relating to purchases of property and equipment and repayments of borrowings. The Company expects that the principal uses of cash in the future will be for continuing operations, marketing activities, funding of research and development, capital expenditures, and general working capital requirements. The Company will need to generate significant growth in net revenues to achieve and sustain income from operations.

In order to meet its long-term operating requirements beyond the next twelve months, the Company will need, among other things, additional capital resources. Until the Company can generate significant cash from operations, including assay revenues, management’s plans to obtain such resources for the Company include proceeds from offerings of the Company’s equity securities or debt, cash received from the exercise of outstanding common stock warrants, or transactions involving product development, technology licensing or collaboration. The Company cannot provide any assurances that such additional funds will be available on reasonable terms, or at all.