XML 77 R65.htm IDEA: XBRL DOCUMENT
v3.24.1

Subsequent Events (Details) - USD ($) |  |  |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 18, 2024 | Feb. 08, 2024 | May 31, 2023 | Nov. 28, 2022 | Dec. 31, 2023 | Feb. 07, 2024 | Feb. 06, 2024 | Jun. 02, 2023 | Dec. 31, 2022
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |
Shares of common stock |  |  |  |  | 673,000 |  |  |  | 357,000
Shares of common stock |  |  |  | 32,500 |  |  |  |  |
Net proceeds from the Offering (in Dollars) |  |  | $ 3,400,000 | $ 2,100,000 |  |  |  |  |
Shares exercised (in Dollars) |  |  |  |  | $ (46,000) |  |  |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |
Shares of common stock |  |  | 56,250 |  |  |  |  | 142,858 |
Maximum [Member] |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |
Outstanding common stock own percentage |  |  |  |  | 9.99% |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |
Outstanding common stock own percentage |  |  |  |  | 4.99% |  |  |  |
Subsequent Event [Member] | Public Offering [Member] |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |
Shares of common stock |  |  |  |  |  |  | 480,000 |  |
Subsequent Event [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |
Purchase of shares |  | 139,108 |  |  |  |  |  |  |
Additional shares |  |  |  |  |  |  | 285,714 |  |
Shares of common stock |  |  |  |  |  | 82,500 |  |  |
Pre-funded Warrants [Member] |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |
Shares of common stock |  |  | 86,608 | 28,750 |  |  |  |  |
Exercise price per shares (in Dollars per share) |  |  |  |  | $ 0.001 |  |  |  |
Exercise price (in Dollars per share) |  |  | $ 0.4 | $ 0.4 |  |  |  |  |
Pre-funded Warrants [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |
Price of each share of common stock (in Dollars per share) |  |  |  |  |  |  | $ 2.1 |  |
Pre-funded Warrants [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |
Purchase of shares |  |  |  |  |  |  | 1,424,760 |  |
Price of each share of common stock (in Dollars per share) |  |  |  |  |  |  | $ 2.099 |  |
Shares exercised (in Dollars) | $ 1,001,110 |  |  |  |  |  |  |  |
Series A Warrants [Member] |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |
Exercise price per shares (in Dollars per share) |  |  |  |  | $ 2.25 |  |  |  |
Series A Warrants [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |
Net proceeds from the Offering (in Dollars) |  |  |  |  | $ 3,300,000 |  |  |  |
Series A Warrants [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |
Purchase of shares |  |  |  |  |  |  | 3,809,520 |  |
Series A Warrants [Member] | Subsequent Event [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |
Purchase of shares |  |  |  |  |  | 165,000 | 571,428 |  |
Series B Warrants [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |
Purchase of shares |  |  |  |  |  |  | 3,809,520 |  |
Series B Warrants [Member] | Subsequent Event [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |
Purchase of shares |  |  |  |  |  | 165,000 | 571,428 |  |
Warrant [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |
Subsequent Events [Line Items] |  |  |  |  |  |  |  |  |
Exercise price (in Dollars per share) |  | $ 2.625 |  |  |  |  |  |  |

X
- Definition Outstanding common stock own percentage. + References No definition available. + Details
Name: | prso_OutstandingCommonStockOwnPercentage
Namespace Prefix: | prso_
Data Type: | dtr:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Purchase of shares. + References No definition available. + Details
Name: | prso_PurchaseOfShares
Namespace Prefix: | prso_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-3 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
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 -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_CommonStockSharesIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of excess stock shares of an entity that have been sold or granted to shareholders. + References No definition available. + Details
Name: | us-gaap_ExcessStockSharesIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash inflow associated with the amount received from entity's first offering of stock to the public. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-14 + Details
Name: | us-gaap_ProceedsFromIssuanceInitialPublicOffering
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-2 + Details
Name: | us-gaap_SharesIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Per share or per unit amount of equity securities issued. + References No definition available. + Details
Name: | us-gaap_SharesIssuedPricePerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Value of stock issued as a result of the exercise of stock options. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29-31) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 830 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481674/830-30-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 855 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147483399/855-10-50-2 + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Per share increase in exercise price of warrant. Excludes change due to standard antidilution provision. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-3 + Details
Name: | us-gaap_WarrantExercisePriceIncrease
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=us-gaap_IPOMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=prso_PrefundedWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=prso_SeriesAWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=prso_SeriesBWarrantsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=us-gaap_WarrantMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |