v3.22.1

ALLOWANCE FOR CREDIT LOSSES - Balance in Allowance for Credit Losses and Recorded Investment in Loans by Impairment (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable Impaired [Line Items] |  |
Allowance for Credit Losses, Individually Evaluated for Impairment | $ 9,456 | $ 10,516
Allowance for Credit Losses, Collectively Evaluated for Impairment | 23,366 | 23,260
Total Allowance for Credit Losses | 32,822 | 33,776
Loans, Individually Evaluated for Impairment | 61,106 | 61,563
Loans, Collectively Evaluated for Impairment | 7,336,358 | 6,845,165
Total loans | 7,383,234 | 6,893,984
Total | 7,397,464 | 6,906,728
Residential Properties |  |
Financing Receivable Impaired [Line Items] |  |
Allowance for Credit Losses, Individually Evaluated for Impairment | 110 | 111
Allowance for Credit Losses, Collectively Evaluated for Impairment | 3,088 | 2,526
Total Allowance for Credit Losses | 3,198 | 2,637
Loans, Individually Evaluated for Impairment | 8,524 | 9,593
Loans, Collectively Evaluated for Impairment | 4,201,222 | 3,822,902
Total | 4,209,746 | 3,832,495
Commercial Real Estate |  |
Financing Receivable Impaired [Line Items] |  |
Allowance for Credit Losses, Individually Evaluated for Impairment | 7,662 | 7,967
Allowance for Credit Losses, Collectively Evaluated for Impairment | 7,974 | 9,082
Total Allowance for Credit Losses | 15,636 | 17,049
Loans, Individually Evaluated for Impairment | 41,664 | 41,313
Loans, Collectively Evaluated for Impairment | 1,223,133 | 1,268,262
Total | 1,264,797 | 1,309,575
Land and Construction |  |
Financing Receivable Impaired [Line Items] |  |
Allowance for Credit Losses, Individually Evaluated for Impairment | 69 | 52
Allowance for Credit Losses, Collectively Evaluated for Impairment | 1,699 | 1,943
Total Allowance for Credit Losses | 1,768 | 1,995
Loans, Individually Evaluated for Impairment | 698 | 694
Loans, Collectively Evaluated for Impairment | 158,533 | 155,232
Total | 159,231 | 155,926
Commercial and Industrial Loans |  |
Financing Receivable Impaired [Line Items] |  |
Allowance for Credit Losses, Individually Evaluated for Impairment | 1,615 | 2,386
Allowance for Credit Losses, Collectively Evaluated for Impairment | 10,515 | 9,606
Total Allowance for Credit Losses | 12,130 | 11,992
Loans, Individually Evaluated for Impairment | 10,220 | 9,963
Loans, Collectively Evaluated for Impairment | 1,743,680 | 1,587,902
Total loans | 1,754,279 | 1,598,422
Total | 1,753,900 | 1,597,865
Consumer Loans |  |
Financing Receivable Impaired [Line Items] |  |
Allowance for Credit Losses, Collectively Evaluated for Impairment | 90 | 103
Total Allowance for Credit Losses | 90 | 103
Loans, Collectively Evaluated for Impairment | 9,790 | 10,867
Total loans | 9,760 | 10,834
Total | $ 9,790 | $ 10,867

X
- Definition Loans and leases receivable allowance impaired. + References No definition available. + Details
Name: | ffwm_LoansAndLeasesReceivableAllowanceImpaired
Namespace Prefix: | ffwm_
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 -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The balance of financing receivables that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
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 No definition available. + Details
Name: | us-gaap_FinancingReceivableImpairedLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The balance of financing receivables that were individually evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522 + Details
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123577603&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_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
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=ffwm_LandAndConstructionMember
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_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |