v3.24.1.u1

Loans and Allowance for Credit Losses on Loans - Purchases, Sales, and Transfers (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Transfer of loans to held-for-sale	$ 0	$ 0
Transfer of loans to held-for-investment	0	0
Purchases of loans held-for-investment	0
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchases of loans held-for-investment	0	15,741
Consumer | Residential mortgage
Accounts, Notes, Loans and Financing Receivable [Line Items]
Purchases of loans held-for-investment	$ 0	$ 15,741

X

- Definition

Financing Receivable, Excluding Accrued Interest, Reclassification to Held-for-investment

+ References

No definition available.

+ Details

Name:	pcb_FinancingReceivableExcludingAccruedInterestReclassificationToHeldForInvestment
Namespace Prefix:	pcb_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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_AccountsNotesAndLoansReceivableLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount excluding accrued interest, of increase in financing receivable from purchase. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-11

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestPurchase
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount excluding accrued interest, of financing receivable reclassified to held-for-sale. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Subparagraph (i)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479319/326-20-50-11

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialMortgageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: