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Stock-Based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2026
Share-Based Payment Arrangement [Abstract] |
Summary of Stock Option Activity | A summary of iMDx’s 2010 Plan and 2018 Incentive Plan activity and related information follows:
|  | Options |  |  | Nonvested RSUs |
|  | Number Outstanding |  |  | Weighted Average Exercise Price |  |  | Weighted Average Remaining Contractual Life |  | Aggregate Intrinsic Value |  |  | Number Outstanding |  |  | Weighted Average Grant Date Fair Value |
|  | (In thousands, except weighted average amounts) |
Balance at December 31, 2025 |  |  | 2,251 |  |  | $ | 7.11 |  |  | 8.92 years |  | $ | 8,537 |  |  |  | 852 |  |  | $ | 3.03 |
Awards granted |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  | — |  |  | $ | — |
Options exercised |  |  | — |  |  | $ | — |  |  |  |  | $ | — |  |  | n/a |  |  | n/a |
RSUs vested |  | n/a |  |  | n/a |  |  |  |  |  |  |  |  | (168 | ) |  | $ | 3.18 |
Options forfeited/expired |  |  | (2 | ) |  | $ | 61.20 |  |  |  |  |  |  |  | n/a |  |  | n/a |
RSUs forfeited |  | n/a |  |  | n/a |  |  |  |  |  |  |  |  | — |  |  | $ | — |
Balance at March 31, 2026 |  |  | 2,249 |  |  | $ | 7.06 |  |  | 8.68 years |  | $ | 279 |  |  |  | 684 |  |  | $ | 3.00 |
Options vested and expected to vest at March 31, 2026 |  |  | 2,249 |  |  | $ | 7.06 |  |  | 8.68 years |  | $ | 279 |  |  |  |  |  |  |
Options exercisable at March 31, 2026 |  |  | 635 |  |  | $ | 16.66 |  |  | 7.21 years |  | $ | 141 |  |  |  |  |  |  |
Stock-based compensation expense for the period |  | $ | 373 |  |  |  |  |  |  |  |  |  |  | $ | 242 |  |  |  |
Unrecognized stock-based compensation expense |  | $ | 3,476 |  |  |  |  |  |  |  |  |  |  | $ | 1,681 |  |  |  |
Weighted average remaining recognition period |  | 2.39 years |  |  |  |  |  |  |  |  |  |  | 2.18 years |  |  |  |
Schedule of Assumptions Used to Calculate Fair Value of Stock Options | The assumptions used to calculate the Black-Scholes grant date fair value for such time-based awards were as follows:
|  | Three Months Ended March 31, |
|  | 2026 |  |  | 2025 |
Expected life |  |  | — |  |  | 6.18 years |
Risk-free interest rates |  |  | — |  |  |  | 4.15 | %
Volatility |  |  | — |  |  |  | 103.71 | %
Dividend yield |  |  | — |  |  |  | 0 | %
Summary of Stock-based Compensation Expense | iMDx recorded stock-based compensation expense in the following categories on the accompanying consolidated statements of operations:
|  | Three Months Ended March 31, |
|  | 2026 |  |  | 2025 |
|  | (In thousands) |
Cost of revenues |  | $ | — |  |  | $ | — |
Research and development |  |  | 159 |  |  |  | 195 |
Sales and marketing |  |  | 58 |  |  |  | 38 |
General and administrative |  |  | 398 |  |  |  | 240 |
Total |  | $ | 615 |  |  | $ | 473 |

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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 -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + 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 -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 718 -SubTopic 10 -Subparagraph (f)(2) -Name Accounting Standards Codification -Paragraph 2 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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