CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY - Common Stock Reserved for Future Issuance (Details) - shares |
Sep. 30, 2020 |
Dec. 31, 2019 |
Sep. 30, 2019 |
Dec. 31, 2018 |
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| CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS' EQUITY | ||||
| Common Stock options outstanding | 16,031,000 | 14,792,000 | 14,490,000 | 12,007,000 |
| Restricted Stock units outstanding | 459,000 | |||
| Shares available for issuance under the Plan | 1,960,118 | 3,894,467 | 4,463,000 | 565,000 |
| Convertible Preferred Stock outstanding | 100,038,000 | 100,038,000 | 100,038,000 | 84,093,000 |
| Common Stock warrants outstanding | 919,000 | 2,032,000 | 464,000 | 2,000,000 |
| Total shares of authorized Common Stock reserved for future issuance | 119,407,000 | 120,756,000 | 119,455,000 | 98,665,000 |
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- Definition Number of warrants or rights outstanding. No definition available.
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- Definition Aggregate number of common shares reserved for future issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Aggregate number of nonredeemable convertible preferred shares reserved for future issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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