XML 58 R48.htm IDEA: XBRL DOCUMENT v3.21.2

Loans Loans - Internal Credit Assessment (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans Receivable	$ 2,880,597	$ 2,997,967
Nonaccrual
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans Receivable	7,851	10,183
Consumer Portfolio
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans Receivable	475,106	482,336
Consumer Portfolio | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans Receivable	473,813	481,107
Consumer Portfolio | Nonaccrual
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans Receivable	1,293	1,229
Consumer Portfolio | Residential mortgage
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans Receivable	188,750	186,787
Consumer Portfolio | Residential mortgage | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans Receivable	187,497	185,604
Consumer Portfolio | Residential mortgage | Nonaccrual
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans Receivable	1,253	1,183
Consumer Portfolio | Home equity
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans Receivable	17,960	19,857
Consumer Portfolio | Home equity | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans Receivable	17,946	19,857
Consumer Portfolio | Home equity | Nonaccrual
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans Receivable	14	0
Consumer Portfolio | Other consumer
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans Receivable	268,396	275,692
Consumer Portfolio | Other consumer | Performing
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans Receivable	268,370	275,646
Consumer Portfolio | Other consumer | Nonaccrual
Financing Receivable, Credit Quality Indicator [Line Items]
Total Loans Receivable	$ 26	$ 46

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=121593590&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: