XML 28 R18.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Equity Incentive Plans | 9 Months Ended
--- | ---
Sep. 30, 2022
Share-Based Payment Arrangement [Abstract] |
Equity Incentive Plans | EQUITY INCENTIVE PLANS Stock-Based Compensation Stock-based compensation expense recognized for stock options, restricted stock units ("RSUs"), performance-based restricted stock units ("PRSUs") and our employee stock purchase program (the "ESPP") are recorded as operating expenses in our condensed statements of operations and comprehensive loss, as follows (in thousands):
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2022 |  | 2021 |  | 2022 |  | 2021
Selling, general and administrative | $ | 1,373 |  |  | $ | 1,532 |  |  | $ | 6,102 |  |  | $ | 5,659 |
Research and development | 461 |  |  | 730 |  |  | 2,557 |  |  | 2,909 |
Total | $ | 1,834 |  |  | $ | 2,262 |  |  | $ | 8,659 |  |  | $ | 8,568 |
As of September 30, 2022, the balance of inventory included in our condensed balance sheet includes $0.2 million stock-based compensation. During the three and nine months ending September 30, 2022, the amount of stock-based compensation released from inventory into cost of revenue was not material. As of September 30, 2022, our total unrecognized stock-based compensation expense, net of estimated forfeitures, and average remaining vesting period, included the following (dollars in thousands):
| Unrecognized Compensation Expense |  | Average Remaining Vesting Period (Years)
Stock option grants | $ | 11,082 |  |  | 2.6
RSU grants | $ | 3,030 |  |  | 3.0
ESPP | $ | 34 |  |  | 0.4
Stock Options A summary of our stock option activity and related information for the nine months ended September 30, 2022 is as follows (in thousands, except dollar amounts):
| Number of Shares |  | Weighted-Average Exercise Price per Share
Balance at December 31, 2021 | 10,417 |  |  | $ | 7.00 |
Options granted | 4,877 |  |  | $ | 0.88 |
Options exercised | — |  |  | $ | — |
Options forfeited or canceled | (1,454) |  |  | $ | 6.39 |
Balance at September 30, 2022 | 13,840 |  |  | $ | 4.91 |
Exercisable at September 30, 2022 | 7,801 |  |  | $ | 6.55 |
Restricted Stock Units A summary of our RSUs activity and related information for the nine months ended September 30, 2022 is as follows (in thousands, except dollar amounts):
| Number of RSUs |  | Weighted-Average Grant Date Fair Value Per Share
Non-vested restricted stock units at December 31, 2021 | 3,529 |  |  | $ | 2.04 |
Granted | 2,012 |  |  | $ | 0.81 |
Vested | (3,803) |  |  | $ | 1.29 |
Forfeited | (306) |  |  | $ | 2.25 |
Non-vested restricted stock units at September 30, 2022 | 1,432 |  |  | $ | 2.25 |
Employee Stock Purchase Plan During the nine months ended September 30, 2022, we sold approximately 0.3 million shares of our common stock under the ESPP. The shares were purchased by employees at an average purchase price of $0.63 per share resulting in proceeds to us of approximately $0.2 million. Issuance of Common Stock for Services Under Our Amended and Restated Non-Employee Director Compensation Program, members of our board of directors may elect to receive shares of our stock in lieu of their cash fees. During the nine months ended September 30, 2022, we issued 0.7 million shares of our common stock to members of the board of directors in accordance with the program.

X
- Definition The entire disclosure for share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -URI https://asc.fasb.org/topic&trid=2228938 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (l) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration