XML 17 R49.htm IDEA: XBRL DOCUMENT
v3.20.1

Loans Loans - Internal Credit Assessment (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total Loans Receivable | $ 2,826,650 | $ 2,919,981
Nonaccrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total Loans Receivable | 7,318 | 6,164
Consumer Portfolio |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total Loans Receivable | 539,190 | 633,464
Consumer Portfolio | Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total Loans Receivable | 538,160 | 632,670
Consumer Portfolio | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total Loans Receivable | 1,030 | 794
Consumer Portfolio | Residential mortgage |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total Loans Receivable | 218,730 | 313,849
Consumer Portfolio | Residential mortgage | Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total Loans Receivable | 217,739 | 313,088
Consumer Portfolio | Residential mortgage | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total Loans Receivable | 991 | 761
Consumer Portfolio | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total Loans Receivable | 23,855 | 24,306
Consumer Portfolio | Home equity | Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total Loans Receivable | 23,855 | 24,306
Consumer Portfolio | Home equity | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total Loans Receivable | 0 | 0
Consumer Portfolio | Other consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total Loans Receivable | 296,605 | 295,309
Consumer Portfolio | Other consumer | Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total Loans Receivable | 296,566 | 295,276
Consumer Portfolio | Other consumer | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total Loans Receivable | $ 39 | $ 33

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_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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=118952595&loc=d3e4428-111522 + Details
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_NonperformingFinancingReceivableMember
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: |

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

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