Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2022

Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]

Summary of Stock-Based Compensation Expense Recognized

Stock-based compensation from stock options and RSUs under the Equity Incentive Plans and stock-based compensation from stock options under the Amprius Holdings Plan that were recorded by the Company were included in the following lines in the accompanying consolidated statements of operations during the periods presented (in thousands):

	Years ended December 31,
	2022		2021
Cost of revenue	$	516	$	693
Research and development		27		233
Selling, general and administrative		2,166		1,547
Total stock-based compensation	$	2,709	$	2,473

Summary of Weighted-Average Assumptions for Options Granted

The fair value of options granted was estimated at the date of grant using the Black-Scholes option-pricing model with the following weighted-average assumptions:

	Year ended December 31,
	2022			2021
Dividend yield		—	%		—	%
Expected volatility		59.2	%		51.8	%
Expected term (in years)		6.2			5.9
Risk-free rate		2.7	%		1.1	%

Summary of RSU Activity Under The Equity Incentive Plans

A summary of RSU activity under the Equity Incentive Plans as of December 31, 2022, and changes during the year ended December 31, 2022, is as follow:

	Number of Shares		Weighted- Average Grant Date Fair Value
Outstanding at January 1, 2022		—		—
Granted		185,000	$	10.40
Vested		—		—
Expired/Forfeited		—		—
Outstanding at December 31, 2022		185,000	$	10.40

Summary of Outstanding Stock Warrants

Outstanding stock warrants consisted of the following as of December 31, 2022:

	Number of Warrants		Exercise Price Per Share		Expiration Date
Public warrants		29,268,336	$	11.50		September 14, 2027
Private warrants		16,400,000	$	11.50		September 14, 2027
PIPE warrants		2,052,500	$	12.50		September 14, 2027
		47,720,836

2016 Equity Incentive Plan [Member]

Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]

Summary of Option Activity

A summary of option activity under the Equity Incentive Plans as of December 31, 2022, and changes during the year ended December 31, 2022, is as follows:

	Number of Shares			Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Term (in Years)		Average Intrinsic Value (in Thousands)
Outstanding at January 1, 2022		10,372,865		$	0.85		5.9	$	16,208
Granted		3,875,412		$	2.63
Exercised		(146,794	)	$	0.31
Expired/Forfeited		(27,609	)	$	2.03
Outstanding at December 31, 2022		14,073,874		$	1.35		6.1	$	92,629
Vested and exercisable at December 31, 2022		7,927,465		$	0.64		3.9	$	57,752
Vested and expected to vest at December 31, 2022		14,073,874		$	1.35		6.1	$	92,629