XML 44 R34.htm IDEA: XBRL DOCUMENT
v3.22.2.2

Business Combination - Additional Information (Details) shares in Thousands, d in Thousands |  | 9 Months Ended |
--- | --- | --- | ---
Dec. 17, 2021 d $ / shares shares | Sep. 30, 2022 shares | Dec. 31, 2021 shares
Business Acquisition [Line Items] |  |  |
Exchangeable shares and common stock | 9,295,097 | 9,112 | 9,295
Common stock, shares issued |  | 12,757 | 12,284
Trading days | d | 20 |  |
Consecutive trading days | d | 30 |  |
Consecutive trading days per share | $ / shares | $ 8.57 |  |
Common Stock | Peraso Tech |  |  |
Business Acquisition [Line Items] |  |  |
Conversion ratio of common stock |  | 0.045239122387267 |
Percentage of number of exchangeable shares issued remain outstanding |  | 10.00% |
Percentage of voting securities |  | 50.00% |
Common Stock | Peraso Tech | Former Security Holders |  |  |
Business Acquisition [Line Items] |  |  |
Equity Method Investment, Ownership Percentage |  | 61.00% |
Peraso Shares |  |  |
Business Acquisition [Line Items] |  |  |
Exchangeable shares and common stock | 1,312,878 |  |
Common stock, shares issued | 3,558,151 |  |
Escrow Shares |  |  |
Business Acquisition [Line Items] |  |  |
Exchangeable shares and common stock | 502,567 |  |

X
- Definition Conversion ratio of common stock. + References No definition available. + Details
Name: | prso_ConversionRatioOfCommonStock
Namespace Prefix: | prso_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of number of exchangeable shares issued remain outstanding. + References No definition available. + Details
Name: | prso_PercentageOfNumberOfExchangeableSharesIssuedRemainOutstanding
Namespace Prefix: | prso_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of voting securities. + References No definition available. + Details
Name: | prso_PercentageOfVotingSecurities
Namespace Prefix: | prso_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total number of shares of other common stock instruments held by shareholders, such as exchangeable shares. May be all or portion of the number of common shares authorized. + References No definition available. + Details
Name: | us-gaap_CommonStockOtherSharesOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockSharesIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Per share excess of preference in liquidation over convertible debt instrument's if-converted par or stated value of share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 1B -Subparagraph (h) -URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611 + Details
Name: | us-gaap_DebtInstrumentConvertibleLiquidationPreferencePerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentConvertibleThresholdTradingDays
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_CommonStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=prso_PerasoTechMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=prso_FormerSecurityHoldersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=prso_PerasoSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=prso_EscrowSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |