XML 63 R53.htm IDEA: XBRL DOCUMENT v3.21.2

Premises and Equipment - Narrative (Details) - Agreement To Sell Headquarters And Certain Equipment $ in Millions	Apr. 16, 2021 USD ($)
Property, Plant and Equipment [Line Items]
Option to extend lease, period	90 days
Sale price paid in cash	$ 8.9

X

- Definition

Sale Leaseback Transaction, Lease Terms, Option To Extend, Period

+ References

No definition available.

+ Details

Name:	inbk_SaleLeasebackTransactionLeaseTermsOptionToExtendPeriod
Namespace Prefix:	inbk_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3179-108585

+ Details

Name:	us-gaap_ProceedsFromSaleOfProductiveAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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

X

- Details

Name:	us-gaap_SaleLeasebackTransactionDescriptionAxis=inbk_AgreementToSellHeadquartersAndCertainEquipmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: