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STOCKHOLDERS' EQUITY - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jan. 01, 2026 | Jan. 01, 2025 | Jun. 30, 2026 | Jun. 30, 2025 | Dec. 31, 2021 | Dec. 31, 2025 | Nov. 30, 2022
Class of Stock [Line Items] |  |  |  |  |  |  |
Common stock, shares authorized (in shares) |  |  | 200,000,000 |  |  | 200,000,000 |
Common stock, shares issued (in shares) |  |  | 5,306,894 |  |  | 5,283,321 |
Common stock, shares outstanding (in shares) |  |  | 5,306,894 |  |  | 5,283,321 |
Preferred stock, shares authorized (in shares) |  |  | 50,000,000 |  |  | 50,000,000 |
Preferred stock, shares outstanding (in shares) |  |  | 0 |  |  | 0 |
Outstanding stock options, aggregate intrinsic value |  |  | $ 2,348 |  |  | $ 89 |
Share price (per share) |  |  | $ 16.00 |  |  |  |
Exercisable stock options, aggregate intrinsic value |  |  | $ 1,260 |  |  |  |
Weighted average grant date fair value (in dollars per share) |  |  | $ 3.60 | $ 4.96 |  |  |
Unrecognized share-based compensation expense |  |  | $ 1,800 |  |  |  |
Total unrecognized share-based compensation expense, weighted average period for recognition |  |  | 1 year 8 months 12 days |  |  |  |
Restricted Stock Units (RSUs) |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Total unrecognized share-based compensation expense, weighted average period for recognition |  |  | 1 year 10 months 24 days |  |  |  |
Unrecognized share-based compensation expense, restricted stock units |  |  | $ 200 |  |  |  |
2021 Equity Incentive Plan |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Common stock issuable (in shares) |  |  | 1,501,008 |  | 680,043 |  |
Share pool increase, percentage of common shares outstanding |  |  |  |  | 5.00% |  |
Additional shares authorized (in shares) | 264,166 | 259,438 |  |  |  |  |
Shares available for future issuance (in shares) |  |  | 846,407 |  |  |  |
2021 Employee Stock Purchase Plan |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Common stock issuable (in shares) |  |  |  |  | 36,415 |  |
Share pool increase, percentage of common shares outstanding |  |  |  |  | 1.00% |  |
Additional shares authorized (in shares) | 0 | 0 |  |  |  |  |
Shares available for future issuance (in shares) |  |  | 91,479 |  |  |  |
Common stock shares outstanding (in shares) |  |  | 72,831 |  |  |  |
Shares issued during period (in shares) |  |  | 2,802 | 4,375 |  |  |
Share-based compensation arrangement by share-based payment award, purchase price of common stock (as a percent) |  |  | 85.00% |  |  |  |
Follow on Offering | Pre-Funded Warrants |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |
Number of securities called by warrants or rights (in shares) |  |  | 416,673 | 416,673 |  |  | 416,673
Offering price (in dollars per share) |  |  |  |  |  |  | $ 47.9992
Pre-funded warrants exercise price (in dollars per share) |  |  |  |  |  |  | $ 0.0008
Percent excess limit (as a percent) |  |  | 9.99% |  |  |  |
Days of notice |  |  | 61 days |  |  |  |
Percentage of common stock beneficially owned not exceed (as a percent) |  |  | 19.99% |  |  |  |

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