XML 63 R52.htm IDEA: XBRL DOCUMENT
v3.25.1

Loans, Allowance for Credit Losses, and Asset Quality Information - Schedule of Aging Modifications (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Mar. 31, 2024
--- | --- | ---
Accruing Current |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | $ 6,812 | $ 2,307
Accruing 30-59 Days Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 0 | 0
Accruing 60-89 Days Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 51 | 68
Accruing 90 Days or More Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 422 | 936
Commercial and industrial | Accruing Current |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 253 | 1,183
Commercial and industrial | Accruing 30-59 Days Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 0 | 0
Commercial and industrial | Accruing 60-89 Days Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 0 | 0
Commercial and industrial | Accruing 90 Days or More Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 0 | 878
Real estate, commercial | Construction, development & other land loans | Accruing Current |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 272 | 171
Real estate, commercial | Construction, development & other land loans | Accruing 30-59 Days Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 0 | 0
Real estate, commercial | Construction, development & other land loans | Accruing 60-89 Days Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 0 | 0
Real estate, commercial | Construction, development & other land loans | Accruing 90 Days or More Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 0 | 0
Real estate, commercial | Commercial real estate - owner occupied | Accruing Current |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 869 | 131
Real estate, commercial | Commercial real estate - owner occupied | Accruing 30-59 Days Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 0 | 0
Real estate, commercial | Commercial real estate - owner occupied | Accruing 60-89 Days Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 0 | 0
Real estate, commercial | Commercial real estate - owner occupied | Accruing 90 Days or More Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 0 | 0
Real estate, commercial | Commercial real estate - non owner occupied | Accruing Current |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 4,418 | 102
Real estate, commercial | Commercial real estate - non owner occupied | Accruing 30-59 Days Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 0 | 0
Real estate, commercial | Commercial real estate - non owner occupied | Accruing 60-89 Days Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 0 | 0
Real estate, commercial | Commercial real estate - non owner occupied | Accruing 90 Days or More Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 422 | 0
Real estate, mortgage | Residential 1-4 family real estate | Accruing Current |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 312 | 137
Real estate, mortgage | Residential 1-4 family real estate | Accruing 30-59 Days Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 0 | 0
Real estate, mortgage | Residential 1-4 family real estate | Accruing 60-89 Days Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 51 | 0
Real estate, mortgage | Residential 1-4 family real estate | Accruing 90 Days or More Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 0 | 58
Real estate, mortgage | Home equity loans/lines of credit | Accruing Current |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 688 | 583
Real estate, mortgage | Home equity loans/lines of credit | Accruing 30-59 Days Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 0 | 0
Real estate, mortgage | Home equity loans/lines of credit | Accruing 60-89 Days Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | 0 | 68
Real estate, mortgage | Home equity loans/lines of credit | Accruing 90 Days or More Past Due |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Amortized cost basis | $ 0 | $ 0

X
- Definition Amortized cost excluding accrued interest, of financing receivable 12 months after modification for debtor experiencing financial difficulty. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-42 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestModifiedPast12Months
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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 Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 34 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-34 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 33 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-33 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147481933/310-10-55-12A Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-42 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-42 + Details
Name: | us-gaap_FinancingReceivableModificationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancialAssetNotPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables30To59DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivables60To89DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablesPeriodPastDueAxis=us-gaap_FinancingReceivablesEqualToGreaterThan90DaysPastDueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fbnc_CommercialRealEstateOwnerOccupiedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fbnc_CommercialRealEstateNonOwnerOccupiedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_FixedRateResidentialMortgageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_HomeEquityLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |