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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Deferred tax assets: |  |
Net operating loss carryforwards | $ 10,685 | $ 9,638
Accruals and reserves | 1,102 | 412
Stock based compensation | 17 | 13
Intangibles | 345 | 387
Gross deferred tax assets | 12,149 | 10,450
Valuation allowance | (11,278) | (9,735)
Total deferred tax assets | 871 | 715
Deferred tax liabilities: |  |
Depreciation | (165) | (134)
Intangibles | (226) | 0
Deferred commissions | (689) | (761)
Net deferred tax assets (liabilities) | $ (209) | $ (180)

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