XML 72 R62.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Loans and Related Allowance for Loan Losses (Classes of the Loan Portfolio Summarized by the Aggregate Risk Rating) (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | $ 941,201 | $ 892,518
Commercial real estate- non owner-occupied [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 139,488 | 139,568
Commercial real estate- all other CRE [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 151,207 | 143,594
Acquisition and development- 1-4 family residential construction [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 19,931 | 17,719
Acquisition and development- All other A&D [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 91,848 | 92,811
Commercial and industrial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 88,174 | 76,723
Residential mortgage- term [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 344,775 | 324,385
Residential mortgage- home equity [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 72,507 | 74,263
Consumer [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 33,271 | 23,455
Pass [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 905,214 | 858,600
Pass [Member] | Commercial real estate- non owner-occupied [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 133,604 | 133,725
Pass [Member] | Commercial real estate- all other CRE [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 140,070 | 132,003
Pass [Member] | Acquisition and development- 1-4 family residential construction [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 19,931 | 17,719
Pass [Member] | Acquisition and development- All other A&D [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 84,218 | 84,345
Pass [Member] | Commercial and industrial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 82,967 | 75,299
Pass [Member] | Residential mortgage- term [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 339,928 | 319,059
Pass [Member] | Residential mortgage- home equity [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 71,343 | 73,059
Pass [Member] | Consumer [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 33,153 | 23,391
Special Mention [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 18,166 | 11,427
Special Mention [Member] | Commercial real estate- non owner-occupied [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 2,970 | 0
Special Mention [Member] | Commercial real estate- all other CRE [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 3,659 | 3,963
Special Mention [Member] | Acquisition and development- 1-4 family residential construction [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 0 | 0
Special Mention [Member] | Acquisition and development- All other A&D [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 7,207 | 7,294
Special Mention [Member] | Commercial and industrial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 4,180 | 17
Special Mention [Member] | Residential mortgage- term [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 0 | 0
Special Mention [Member] | Residential mortgage- home equity [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 146 | 148
Special Mention [Member] | Consumer [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 4 | 5
Substandard [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 17,821 | 22,491
Substandard [Member] | Commercial real estate- non owner-occupied [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 2,914 | 5,843
Substandard [Member] | Commercial real estate- all other CRE [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 7,478 | 7,628
Substandard [Member] | Acquisition and development- 1-4 family residential construction [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 0 | 0
Substandard [Member] | Acquisition and development- All other A&D [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 423 | 1,172
Substandard [Member] | Commercial and industrial [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 1,027 | 1,407
Substandard [Member] | Residential mortgage- term [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 4,847 | 5,326
Substandard [Member] | Residential mortgage- home equity [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | 1,018 | 1,056
Substandard [Member] | Consumer [Member] |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans | $ 114 | $ 59

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 before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524 + Details
Name: | us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

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

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

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialPortfolioSegmentMember
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: |

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

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

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |