Income Taxes - Schedule of Components of Provision for Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Current:
Federal	$ 0	$ 0
State	238	224
Total current	238	224
Deferred:
Federal	0	0
State	0	0
Total deferred	0	0
Provision for income taxes	$ 238	$ 224

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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CytomX Therapeutics, Inc. 10-K