XML 100 R46.htm IDEA: XBRL DOCUMENT
v3.22.1

Redeemable Convertible Preferred Stock Warrant Liability - Narrative (Details) - $ / shares | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Jun. 30, 2017 | Jul. 31, 2015
Class of Warrant or Right [Line Items] |  |  |  |  |
Issuance upon exercise of warrants (in shares) |  | 62,000 | 651,000 |  |
Series D, Redeemable Convertible Preferred Stock |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |
Warrants exercised for redeemable convertible preferred stock (in shares) |  |  |  |  | 869,842
Exercise price of warrants (in dollars per share) |  |  |  |  | $ 5.08
Warrant term (in years) |  |  |  |  | 5 years
Series D, Redeemable Convertible Preferred Stock | Common stock warrants |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |
Issuance upon exercise of warrants (in shares) |  |  | 651,334 |  |
Warrants outstanding (in shares) |  |  | 0 |  |
Series E, Redeemable Convertible Preferred Stock |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |
Warrants exercised for redeemable convertible preferred stock (in shares) |  |  |  | 108,145 |
Exercise price of warrants (in dollars per share) |  |  |  |  | $ 13.73
Warrants outstanding (in shares) |  | 0 | 72,000 |  |
Series E, Redeemable Convertible Preferred Stock | Common stock warrants |  |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |  |
Issuance upon exercise of warrants (in shares) | 62,454 | 62,454 | 0 |  |
Warrants outstanding (in shares) |  | 0 |  |  |

X
- Definition Temporary Equity, Stock Issued During Period, Shares, Warrant Exercises + References No definition available. + Details
Name: | prct_TemporaryEquityStockIssuedDuringPeriodSharesWarrantExercises
Namespace Prefix: | prct_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644 + Details
Name: | us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

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_ClassOfWarrantOrRightLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644 + Details
Name: | us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of warrants or rights outstanding. + References No definition available. + Details
Name: | us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Period between issuance and expiration of outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
Name: | us-gaap_WarrantsAndRightsOutstandingTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

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

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

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