Income Taxes - Summary of Reconciliation of Effective Tax Rate and Federal Statutory Tax Rate (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Federal income taxes	$ (7,179)	$ (1,379)
State income taxes, net of federal benefit	(968)	(500)
Permanent items	873	(147)
In-process research and development	3,354
Research and development credit carryforwards	(217)	(468)
Other, net	18	51
Change in valuation allowance	$ 4,119	$ 2,443

Income tax reconciliation in process research and development.

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Income tax reconciliation permanent items.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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