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STOCKHOLDERS’ EQUITY (Tables) | 3 Months Ended
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Mar. 31, 2023
Equity [Abstract] |
Schedule of Stock-Based Compensation Included in Operating Expenses | All stock-based compensation is included in operating expenses as follows:
| Three Months Ended March 31,
| 2023 |  | 2022
Compensation cost recognized: |  |  |
Selling, general & administrative | $ | 595 |  |  | $ | 427 |
Research & development | 87 |  |  | 165 |
| $ | 682 |  |  | $ | 592 |
Schedule of Stock Option Activity | Stock option activity under the 2015 Plan during the period indicated below is as follows:
| Number of Shares Subject to Issuance |  | Weighted- average Exercise Price |  | Weighted- average Remaining Contractual Term |  | Aggregate Intrinsic Value
Outstanding at December 31, 2022 | 1,120,244 |  | $ | 3.68 |  |  | 3.50 years |  | $ | 84 |
Granted | 502,507 |  | 3.02 |  |  | – |  |  | – |
Forfeited, cancelled, or expired | (122,467) |  | 2.45 |  |  | – |  |  | – |
Outstanding at March 31, 2023 | 1,500,284 |  | $ | 2.72 |  |  | 2.32 years |  | $ | 247 |
Exercisable at March 31, 2023 | 353,523 |  | $ | 5.69 |  |  | 1.65 years |  | $ | 247 |
Schedule of Restricted Stock Unit (RSU) Activity | Restricted stock unit activity during the period indicate below is as follows:
| Number of Shares |  | Weighted Average Grant Date Fair Value
Outstanding at December 31, 2022 | 214,892 |  | $ | 8.43 |
Granted | 126,228 |  | 2.49 |
Forfeited or surrendered | (15,120) |  | 10.46 |
Vested and settled in shares | (169,653) |  | 3.85 |
Outstanding at March 31, 2023 | 156,347 |  | $ | 8.40 |
Schedule of Performance Stock Unit (PSU) Activity |
| Number of Shares |  | Weighted Average Grant Date Fair Value
Outstanding at December 31, 2022 | 177,688 |  | $ | 7.91 |
Forfeited | (88,844) |  | 7.91 |
Vested and settled in shares | (88,844) |  | 7.91 |
Outstanding at March 31, 2023 | — |  | $ | 7.91 |

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- Definition Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the changes in outstanding nonvested performance-based units. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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