XML 73 R74.htm IDEA: XBRL DOCUMENT
v3.20.1

LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of Impaired Loans by Class (Detail) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Recorded Investment (Book Balance) |  |
Impaired Loans with a Specific Allowance | $ 425 | $ 743
Impaired Loans with No Specific Allowance | 11,211 | 5,554
Unpaid Principal Balance (Legal Balance) |  |
Impaired Loans with a Specific Allowance | 425 | 743
Impaired Loans with No Specific Allowance | 16,791 | 7,832
Related Allowance | 36 | 38
Commercial Real Estate | Owner-occupied |  |
Recorded Investment (Book Balance) |  |
Impaired Loans with a Specific Allowance | 0 | 0
Impaired Loans with No Specific Allowance | 5,872 | 1,880
Unpaid Principal Balance (Legal Balance) |  |
Impaired Loans with a Specific Allowance | 0 | 0
Impaired Loans with No Specific Allowance | 8,086 | 2,576
Related Allowance | 0 | 0
Commercial Real Estate | Multi-family |  |
Recorded Investment (Book Balance) |  |
Impaired Loans with a Specific Allowance | 0 | 0
Impaired Loans with No Specific Allowance | 345 | 131
Unpaid Principal Balance (Legal Balance) |  |
Impaired Loans with a Specific Allowance | 0 | 0
Impaired Loans with No Specific Allowance | 569 | 336
Related Allowance | 0 | 0
Commercial Real Estate | Non-owner occupied residential |  |
Recorded Investment (Book Balance) |  |
Impaired Loans with a Specific Allowance | 0 | 0
Impaired Loans with No Specific Allowance | 235 | 309
Unpaid Principal Balance (Legal Balance) |  |
Impaired Loans with a Specific Allowance | 0 | 0
Impaired Loans with No Specific Allowance | 422 | 632
Related Allowance | 0 | 0
Commercial and industrial |  |
Recorded Investment (Book Balance) |  |
Impaired Loans with a Specific Allowance | 0 | 0
Impaired Loans with No Specific Allowance | 1,763 | 286
Unpaid Principal Balance (Legal Balance) |  |
Impaired Loans with a Specific Allowance | 0 | 0
Impaired Loans with No Specific Allowance | 3,361 | 457
Related Allowance | 0 | 0
Residential mortgage | First lien |  |
Recorded Investment (Book Balance) |  |
Impaired Loans with a Specific Allowance | 425 | 743
Impaired Loans with No Specific Allowance | 2,165 | 2,134
Unpaid Principal Balance (Legal Balance) |  |
Impaired Loans with a Specific Allowance | 425 | 743
Impaired Loans with No Specific Allowance | 3,164 | 2,727
Related Allowance | 36 | 38
Residential mortgage | Home equity – term |  |
Recorded Investment (Book Balance) |  |
Impaired Loans with a Specific Allowance | 0 | 0
Impaired Loans with No Specific Allowance | 13 | 16
Unpaid Principal Balance (Legal Balance) |  |
Impaired Loans with a Specific Allowance | 0 | 0
Impaired Loans with No Specific Allowance | 15 | 23
Related Allowance | 0 | 0
Residential mortgage | Home equity lines of credit |  |
Recorded Investment (Book Balance) |  |
Impaired Loans with a Specific Allowance | 0 | 0
Impaired Loans with No Specific Allowance | 733 | 798
Unpaid Principal Balance (Legal Balance) |  |
Impaired Loans with a Specific Allowance | 0 | 0
Impaired Loans with No Specific Allowance | 1,077 | 1,081
Related Allowance | 0 | $ 0
Installment and other loans |  |
Recorded Investment (Book Balance) |  |
Impaired Loans with a Specific Allowance | 0 |
Impaired Loans with No Specific Allowance | 85 |
Unpaid Principal Balance (Legal Balance) |  |
Impaired Loans with a Specific Allowance | 0 |
Impaired Loans with No Specific Allowance | 97 |
Related Allowance | $ 0 |

X
- References No definition available. + Details
Name: | us-gaap_ImpairedFinancingReceivableRecordedInvestmentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableRelatedAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalanceAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of investment in impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of unpaid principal balance of impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceUnpaidPrincipalBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Unpaid principal balance of impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceUnpaidPrincipalBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

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

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

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

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