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Stockholders' Equity - Additional Information (Details) | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Mar. 31, 2020 USD ($) $ / shares shares | Dec. 31, 2020 USD ($) $ / shares shares | Dec. 31, 2021 | Dec. 31, 2020 $ / shares shares | Mar. 31, 2020 $ / shares
Stockholders Equity [Line Items] |  |  |  |  |
Preferred shares converted into Peraso shares,value |  | $ 112,001,000 |  |  |
Dividends preferred stock outstanding | $ 22,732,543 |  |  |  |
Shares issued of common stock for services | shares | 591,757 |  |  |  |
Fair value of preferred stock | $ 11,133,786 |  |  |  |
Exercise price of warrants | (per share) |  | $ 0.12 |  | $ 0.15 |
Exercise of warrant purchase | shares |  | 6,628,495,000 |  | 6,628,495,000 |
Fair value of warrant granted |  | $ 5,300,000 |  |  |
Expected Dividend Rate |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |
Warrants and rights outstanding, measurement input |  | 0 | 0 | 0 |
Risk Free Interest Rate |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |
Warrants and rights outstanding, measurement input |  | 0.36 |  | 0.36 |
Expected Volatility |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |
Warrants and rights outstanding, measurement input |  | 104.37 | 104.37 | 104.37 |
Exercise Price in USD for CDN$1.00 |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |
Exercise price of warrants | $ / shares |  | $ 0.79 |  |  |
Exercise Price in USD for CDN$1.479 |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |
Exercise price of warrants | $ / shares |  | 1.16 |  |  |
Exercise Price in USD for CDN$0.15 |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |
Exercise price of warrants | $ / shares |  | $ 0.12 |  |  |
Minimum |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |
Expected warrant life |  | 1 year 11 months 1 day | 3 years 2 months 12 days | 1 year 11 months 1 day |
Minimum | Risk Free Interest Rate |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |
Warrants and rights outstanding, measurement input |  |  | 0.37 |  |
Maximum |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |
Expected warrant life |  | 5 years 3 months | 5 years | 5 years 3 months |
Maximum | Risk Free Interest Rate |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |
Warrants and rights outstanding, measurement input |  |  | 0.38 |  |
Class A Preferred Shares |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |
Preferred shares converted into Peraso shares, shares | shares | 124,408 | 124,000 |  |  |
Preferred shares converted into Peraso shares,value | $ 4,229,288 | $ 4,229,000 |  |  |
Class B Preferred Shares |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |
Preferred shares converted into Peraso shares, shares | shares | 1,988,554 | 1,989,000 |  |  |
Preferred shares converted into Peraso shares,value | $ 52,102,651 | $ 52,103,000 |  |  |
Preferred Class A and B |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |
Preferred stock, convertible, conversion price | (per share) | $ 0.72 |  |  |  | $ 1.00
Class C Preferred Shares |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |
Preferred shares converted into Peraso shares, shares | shares | 2,958,787 | 2,959,000 |  |  |
Preferred shares converted into Peraso shares,value | $ 55,668,932 | $ 55,669,000 |  |  |
Preferred stock, convertible, conversion price | (per share) | $ 0.85 |  |  |  | $ 1.18
Class C Preferred Shares | Minimum |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |
Conversion ratio | 1 |  |  |  |
Class C Preferred Shares | Maximum |  |  |  |  |
Stockholders Equity [Line Items] |  |  |  |  |
Conversion ratio | 1.25 |  |  |  |

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