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Description of Business and Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2020
Accounting Policies [Abstract] |
Schedule of Reconciliation of Cash, Cash Equivalents, and Restricted Cash | The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported on the consolidated balance sheets that sum to amounts reported on the consolidated statement of cash flows (in thousands):
|  | June 30, 2020 |  |  | December 31, 2019 |
Cash and cash equivalents |  | $ | 63,222 |  |  | $ | 29,906 |
Restricted cash |  |  | 316 |  |  |  | 316 |
Total cash, cash equivalents, and restricted cash |  | $ | 63,538 |  |  | $ | 30,222 |
Schedule of Potentially Dilutive Common Stock Equivalent Securities | The computation of basic and diluted net loss per share for the three and six months ended June 30, 2020 and 2019 excludes the common stock equivalents of the following potentially dilutive securities because their inclusion would be anti-dilutive while the Company is in a net loss position:
|  | Six Months Ended June 30, |
|  | 2020 |  |  | 2019 |
Vesting of restricted stock units |  |  | 2,501,713 |  |  |  | 1,166,006 |
Employee stock purchase plan |  |  | 276,154 |  |  |  | 367,792 |
Exercise of common stock options |  |  | 13,197,927 |  |  |  | 15,512,639 |
Conversion of 2024 convertible notes into common stock |  |  | 1,666,667 |  |  |  | 3,629,627 |
Conversion of Mann Group convertible note into common stock |  |  | 14,000,000 |  |  |  | 21,909,541 |
Exercise of common stock warrants |  |  | 31,851 |  |  |  | 31,856 |
Exercise of warrants associated with Midcap Credit Facility |  |  | 1,171,614 |  |  |  | — |
Exercise of warrants associated with public offering |  |  | — |  |  |  | 26,666,667 |
Total shares |  |  | 32,845,926 |  |  |  | 69,284,128 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of cash and cash equivalents restricted as to withdrawal or usage. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121583591&loc=SL98516268-108586 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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