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INCOME TAXES - Schedule of Deferred Tax Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Deferred tax assets: |  |
Net operating loss carryforwards | $ 82,179 | $ 76,013
Research and development credits | 2,923 | 3,008
Share-based compensation | 2,538 | 2,273
Accruals | 1,161 | 1,379
Interest expense | 4,451 | 3,807
Lease Liability | 782 | 929
Capitalized start-up costs |  | 215
Capitalized R&D costs | 3,790 | 2,165
Other temporary differences | 1,032 | 1,000
Gross deferred tax assets | 98,856 | 90,789
Less: Valuation allowance | (94,473) | (86,733)
Total deferred tax assets | 4,383 | 4,056
Deferred tax liabilities: |  |
Capitalized software | (1,038) | (894)
Right-of-use asset | (679) | (816)
Prepaid commission | (2,666) | (2,346)
Gross deferred tax liabilities | $ (4,383) | $ (4,056)

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