XML 88 R62.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Loans Receivable (Details 9) $ in Thousands | Dec. 31, 2018 USD ($)
--- | ---
Financing Receivable, Recorded Investment, Past Due [Line Items] |
2019 | $ 625
2020 | 496
2021 | 319
2022 | 277
2023 | 60
Total | 1,777
First Federal [Member] |
Financing Receivable, Recorded Investment, Past Due [Line Items] |
2019 | 22
2020 | 0
2021 | 0
2022 | 0
2023 | 0
Total | 22
Liberty Savings [Member] |
Financing Receivable, Recorded Investment, Past Due [Line Items] |
2019 | 42
2020 | 0
2021 | 0
2022 | 0
2023 | 0
Total | 42
First Personal [Member] |
Financing Receivable, Recorded Investment, Past Due [Line Items] |
2019 | 561
2020 | 496
2021 | 319
2022 | 277
2023 | 60
Total | $ 1,713

X
- Definition The amount of accretable yield, or income expected to be collected. + References No definition available. + Details
Name: | nwin_FinancingReceivablesAcquiredAccretableYieldToBeCollected
Namespace Prefix: | nwin_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of accretable yield, or income expected to be collected in next fiscal year five. + References No definition available. + Details
Name: | nwin_FinancingReceivablesAcquiredAccretableYieldToBeCollectedYearFive
Namespace Prefix: | nwin_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of accretable yield, or income expected to be collected in next fiscal year four. + References No definition available. + Details
Name: | nwin_FinancingReceivablesAcquiredAccretableYieldToBeCollectedYearFour
Namespace Prefix: | nwin_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of accretable yield, or income expected to be collected in next fiscal year one. + References No definition available. + Details
Name: | nwin_FinancingReceivablesAcquiredAccretableYieldToBeCollectedYearOne
Namespace Prefix: | nwin_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of accretable yield, or income expected to be collected in next fiscal year three. + References No definition available. + Details
Name: | nwin_FinancingReceivablesAcquiredAccretableYieldToBeCollectedYearThree
Namespace Prefix: | nwin_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of accretable yield, or income expected to be collected in next fiscal year two. + References No definition available. + Details
Name: | nwin_FinancingReceivablesAcquiredAccretableYieldToBeCollectedYearTwo
Namespace Prefix: | nwin_
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_FinancingReceivableRecordedInvestmentPastDueLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=nwin_FirstFederalSavingsAndLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=nwin_LibertySavingsBankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=nwin_FirstPersonalBankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |