Stockholders' Equity - Weighted-Average Assumptions to Determine Fair Value (Details) - Amprius Holdings Equity Incentive Plan - $ / shares |
12 Months Ended | |
---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
|
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] | ||
Options issued per share (in usd per share) | $ 1.68 | $ 1.14 |
Dividend yield | 0.00% | |
Expected volatility | 52.20% | |
Expected term (in years) | 5 years | |
Risk-free rate | 1.20% | |
Options | ||
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] | ||
Dividend yield | 0.00% | 0.00% |
Expected volatility | 59.20% | 51.80% |
Expected term (in years) | 6 years 2 months 12 days | 5 years 10 months 24 days |
Risk-free rate | 2.70% | 1.10% |