XML 99 R45.htm IDEA: XBRL DOCUMENT
v3.22.1

Redeemable Convertible Preferred Stock Warrant Liability - Schedule of Warrants to Purchase Shares of Redeemable Convertible Preferred Stock (Details) - USD ($) | Dec. 31, 2021 | Dec. 31, 2020 | Jun. 30, 2017 | Jul. 31, 2015
--- | --- | --- | --- | ---
Class of Warrant or Right [Line Items] |  |  |  |
Convertible preferred stock warrant liability | $ 0 | $ 177,000 |  |
Series E, Redeemable Convertible Preferred Stock |  |  |  |
Class of Warrant or Right [Line Items] |  |  |  |
Exercise price of warrants (in dollars per share) |  |  |  | $ 13.73
Warrants outstanding (in shares) | 0 | 72,000 |  |
Convertible preferred stock warrant liability | $ 0 | $ 177,000 | $ 763,000 |

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 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 Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. + References No definition available. + Details
Name: | us-gaap_WarrantsAndRightsOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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