XML 52 R43.htm IDEA: XBRL DOCUMENT
v3.23.3

Loans Held for Investment and Allowance for Credit Losses - Allowance for Loan Losses on Impaired Loans (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Jun. 30, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | --- | --- | --- | --- | ---
Allowance for Loan Losses |  |  |  |  |  |
Total | $ 12,986 | $ 12,321 | $ 11,985 | $ 11,968 | $ 10,602 | $ 9,855
Portfolio Loan Balances |  |  |  |  |  |
Total | 337,635 |  | 236,601 |  |  |
Financing Receivable, Incurred Loss Methodology |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
Individually |  |  | 0 |  |  |
Collectively |  |  | 11,985 |  |  |
Total | 12,986 |  | 11,985 |  |  |
Portfolio Loan Balances |  |  |  |  |  |
Individually |  |  | 450 |  |  |
Collectively |  |  | 236,151 |  |  |
Total | 337,635 |  | 236,601 |  |  |
SBA |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
Total |  |  |  | 3,809 | 3,384 | 2,739
Portfolio Loan Balances |  |  |  |  |  |
Total |  |  | 145,172 |  |  |
SBA | Financing Receivable, Incurred Loss Methodology |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
Individually |  |  | 0 |  |  |
Collectively |  |  | 4,294 |  |  |
Total |  |  | 4,294 |  |  |
Portfolio Loan Balances |  |  |  |  |  |
Individually |  |  | 450 |  |  |
Collectively |  |  | 144,722 |  |  |
Total |  |  | 145,172 |  |  |
Commercial, non-real estate |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
Total |  |  |  | 464 | 274 | 132
Portfolio Loan Balances |  |  |  |  |  |
Total |  |  | 11,484 |  |  |
Commercial, non-real estate | Financing Receivable, Incurred Loss Methodology |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
Individually |  |  | 0 |  |  |
Collectively |  |  | 401 |  |  |
Total |  |  | 401 |  |  |
Portfolio Loan Balances |  |  |  |  |  |
Individually |  |  | 0 |  |  |
Collectively |  |  | 11,484 |  |  |
Total |  |  | 11,484 |  |  |
Residential real estate |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
Total | 934 | 708 | 876 | 453 | 415 | 352
Portfolio Loan Balances |  |  |  |  |  |
Total | 49,046 |  | 37,815 |  |  |
Residential real estate | Financing Receivable, Incurred Loss Methodology |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
Individually |  |  | 0 |  |  |
Collectively |  |  | 497 |  |  |
Total |  |  | 497 |  |  |
Portfolio Loan Balances |  |  |  |  |  |
Individually |  |  | 0 |  |  |
Collectively |  |  | 37,815 |  |  |
Total |  |  | 37,815 |  |  |
Retained Strategic Program loans |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
Total | 7,196 | 7,256 | 6,701 | 7,147 | 6,442 | 6,549
Portfolio Loan Balances |  |  |  |  |  |
Total | 20,040 |  | 24,259 |  |  |
Retained Strategic Program loans | Financing Receivable, Incurred Loss Methodology |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
Individually |  |  | 0 |  |  |
Collectively |  |  | 6,701 |  |  |
Total |  |  | 6,701 |  |  |
Portfolio Loan Balances |  |  |  |  |  |
Individually |  |  | 0 |  |  |
Collectively |  |  | 24,259 |  |  |
Total |  |  | 24,259 |  |  |
Commercial real estate |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
Total | 3,571 | 3,167 | 3,238 | 29 | 22 | 21
Portfolio Loan Balances |  |  |  |  |  |
Total | 183,579 |  | 12,063 |  |  |
Commercial real estate | Financing Receivable, Incurred Loss Methodology |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
Individually |  |  | 0 |  |  |
Collectively |  |  | 27 |  |  |
Total |  |  | 27 |  |  |
Portfolio Loan Balances |  |  |  |  |  |
Individually |  |  | 0 |  |  |
Collectively |  |  | 12,063 |  |  |
Total |  |  | 12,063 |  |  |
Consumer |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
Total | 103 | $ 90 | 65 | $ 66 | $ 65 | $ 62
Portfolio Loan Balances |  |  |  |  |  |
Total | $ 6,870 |  | 5,808 |  |  |
Consumer | Financing Receivable, Incurred Loss Methodology |  |  |  |  |  |
Allowance for Loan Losses |  |  |  |  |  |
Individually |  |  | 0 |  |  |
Collectively |  |  | 65 |  |  |
Total |  |  | 65 |  |  |
Portfolio Loan Balances |  |  |  |  |  |
Individually |  |  | 0 |  |  |
Collectively |  |  | 5,808 |  |  |
Total |  |  | $ 5,808 |  |  |

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

X
- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossExcludingAccruedInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (g) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 11B -Subparagraph (g) -SubTopic 10 -Topic 310 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11B + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L(5)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480418/310-10-S99-4 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11C -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11C + Details
Name: | us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481598/310-20-45-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11C -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481962/310-10-50-11C Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L(5)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480418/310-10-S99-4 + Details
Name: | us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=finw_FinancingReceivableIncurredLossMethodologyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=finw_CommercialNonRealEstatePortfolioSegmentMember
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_FinancingReceivablePortfolioSegmentAxis=finw_StrategicProgramLoansPortfolioSegmentMember
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_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |