XML 78 R59.htm IDEA: XBRL DOCUMENT
v3.21.1

Note 4 - Loans Receivable - Credit Quality Indicators (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Loan Receivable | $ 966,578 | $ 906,869
Moderate [Member] |  |
Loan Receivable | 16,380 | 12,550
Above Average Acceptable [Member] |  |
Loan Receivable | 206,066 | 146,786
Acceptable [Member] |  |
Loan Receivable | 289,264 | 312,850
Marginally Acceptable [Member] |  |
Loan Receivable | 279,484 | 262,946
Pass [Member] |  |
Loan Receivable | 136,073 | 151,021
Special Mention [Member] |  |
Loan Receivable | 22,684 | 12,624
Substandard [Member] |  |
Loan Receivable | 16,627 | 8,092
Residential Portfolio Segment [Member] |  |
Loan Receivable | 285,651 | 299,333
Residential Portfolio Segment [Member] | Moderate [Member] |  |
Loan Receivable | 1,202 | 827
Residential Portfolio Segment [Member] | Above Average Acceptable [Member] |  |
Loan Receivable | 116,631 | 119,138
Residential Portfolio Segment [Member] | Acceptable [Member] |  |
Loan Receivable | 100,334 | 104,153
Residential Portfolio Segment [Member] | Marginally Acceptable [Member] |  |
Loan Receivable | 15,753 | 13,463
Residential Portfolio Segment [Member] | Pass [Member] |  |
Loan Receivable | 41,805 | 53,058
Residential Portfolio Segment [Member] | Special Mention [Member] |  |
Loan Receivable | 3,539 | 4,203
Residential Portfolio Segment [Member] | Substandard [Member] |  |
Loan Receivable | 6,387 | 4,491
Home Equity Portfolio Segment [Member] |  |
Loan Receivable | 39,286 | 49,181
Home Equity Portfolio Segment [Member] | Moderate [Member] |  |
Loan Receivable | 66 | 100
Home Equity Portfolio Segment [Member] | Above Average Acceptable [Member] |  |
Loan Receivable | 4,949 | 6,536
Home Equity Portfolio Segment [Member] | Acceptable [Member] |  |
Loan Receivable | 31,974 | 40,027
Home Equity Portfolio Segment [Member] | Marginally Acceptable [Member] |  |
Loan Receivable | 108 | 264
Home Equity Portfolio Segment [Member] | Pass [Member] |  |
Loan Receivable | 933 | 934
Home Equity Portfolio Segment [Member] | Special Mention [Member] |  |
Loan Receivable | 761 | 813
Home Equity Portfolio Segment [Member] | Substandard [Member] |  |
Loan Receivable | 495 | 507
Commercial Real Estate Portfolio Segment [Member] |  |
Loan Receivable | 298,257 | 283,108
Commercial Real Estate Portfolio Segment [Member] | Moderate [Member] |  |
Loan Receivable | 0 | 0
Commercial Real Estate Portfolio Segment [Member] | Above Average Acceptable [Member] |  |
Loan Receivable | 1,847 | 2,030
Commercial Real Estate Portfolio Segment [Member] | Acceptable [Member] |  |
Loan Receivable | 70,062 | 82,158
Commercial Real Estate Portfolio Segment [Member] | Marginally Acceptable [Member] |  |
Loan Receivable | 150,983 | 135,058
Commercial Real Estate Portfolio Segment [Member] | Pass [Member] |  |
Loan Receivable | 55,202 | 56,917
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member] |  |
Loan Receivable | 11,983 | 5,380
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member] |  |
Loan Receivable | 8,180 | 1,565
Construction and Land Development Portfolio Segment [Member] |  |
Loan Receivable | 93,562 | 87,710
Construction and Land Development Portfolio Segment [Member] | Moderate [Member] |  |
Loan Receivable | 0 | 0
Construction and Land Development Portfolio Segment [Member] | Above Average Acceptable [Member] |  |
Loan Receivable | 4,282 | 719
Construction and Land Development Portfolio Segment [Member] | Acceptable [Member] |  |
Loan Receivable | 31,612 | 26,900
Construction and Land Development Portfolio Segment [Member] | Marginally Acceptable [Member] |  |
Loan Receivable | 41,961 | 45,751
Construction and Land Development Portfolio Segment [Member] | Pass [Member] |  |
Loan Receivable | 12,055 | 14,340
Construction and Land Development Portfolio Segment [Member] | Special Mention [Member] |  |
Loan Receivable | 3,652 | 0
Construction and Land Development Portfolio Segment [Member] | Substandard [Member] |  |
Loan Receivable | 0 | 0
Multifamily Portfolio Segment [Member] |  |
Loan Receivable | 50,571 | 51,286
Multifamily Portfolio Segment [Member] | Moderate [Member] |  |
Loan Receivable | 0 | 0
Multifamily Portfolio Segment [Member] | Above Average Acceptable [Member] |  |
Loan Receivable | 709 | 903
Multifamily Portfolio Segment [Member] | Acceptable [Member] |  |
Loan Receivable | 7,264 | 18,107
Multifamily Portfolio Segment [Member] | Marginally Acceptable [Member] |  |
Loan Receivable | 35,621 | 26,800
Multifamily Portfolio Segment [Member] | Pass [Member] |  |
Loan Receivable | 5,065 | 4,674
Multifamily Portfolio Segment [Member] | Special Mention [Member] |  |
Loan Receivable | 1,408 | 0
Multifamily Portfolio Segment [Member] | Substandard [Member] |  |
Loan Receivable | 504 | 802
Farmland Portfolio Segment [Member] |  |
Loan Receivable | 215 | 227
Farmland Portfolio Segment [Member] | Moderate [Member] |  |
Loan Receivable | 0 | 0
Farmland Portfolio Segment [Member] | Above Average Acceptable [Member] |  |
Loan Receivable | 0 | 0
Farmland Portfolio Segment [Member] | Acceptable [Member] |  |
Loan Receivable | 0 | 0
Farmland Portfolio Segment [Member] | Marginally Acceptable [Member] |  |
Loan Receivable | 0 | 0
Farmland Portfolio Segment [Member] | Pass [Member] |  |
Loan Receivable | 215 | 227
Farmland Portfolio Segment [Member] | Special Mention [Member] |  |
Loan Receivable | 0 | 0
Farmland Portfolio Segment [Member] | Substandard [Member] |  |
Loan Receivable | 0 | 0
Commercial Portfolio Segment [Member] |  |
Loan Receivable | 156,965 | 103,088
Commercial Portfolio Segment [Member] | Moderate [Member] |  |
Loan Receivable | 7,929 | 8,312
Commercial Portfolio Segment [Member] | Above Average Acceptable [Member] |  |
Loan Receivable | 75,783 | 13,158
Commercial Portfolio Segment [Member] | Acceptable [Member] |  |
Loan Receivable | 16,842 | 19,638
Commercial Portfolio Segment [Member] | Marginally Acceptable [Member] |  |
Loan Receivable | 33,942 | 39,016
Commercial Portfolio Segment [Member] | Pass [Member] |  |
Loan Receivable | 20,067 | 20,009
Commercial Portfolio Segment [Member] | Special Mention [Member] |  |
Loan Receivable | 1,341 | 2,228
Commercial Portfolio Segment [Member] | Substandard [Member] |  |
Loan Receivable | 1,061 | 727
Consumer Portfolio Segment [Member] |  |
Loan Receivable | 1,025 | 627
Consumer Portfolio Segment [Member] | Moderate [Member] |  |
Loan Receivable | 510 | 90
Consumer Portfolio Segment [Member] | Above Average Acceptable [Member] |  |
Loan Receivable | 1 | 0
Consumer Portfolio Segment [Member] | Acceptable [Member] |  |
Loan Receivable | 514 | 537
Consumer Portfolio Segment [Member] | Marginally Acceptable [Member] |  |
Loan Receivable | 0 | 0
Consumer Portfolio Segment [Member] | Pass [Member] |  |
Loan Receivable | 0 | 0
Consumer Portfolio Segment [Member] | Special Mention [Member] |  |
Loan Receivable | 0 | 0
Consumer Portfolio Segment [Member] | Substandard [Member] |  |
Loan Receivable | 0 | 0
Manufactured Homes Portfolio Segment [Member] |  |
Loan Receivable | 30,904 | 16,505
Manufactured Homes Portfolio Segment [Member] | Moderate [Member] |  |
Loan Receivable | 6,673 | 3,221
Manufactured Homes Portfolio Segment [Member] | Above Average Acceptable [Member] |  |
Loan Receivable | 1,864 | 2,413
Manufactured Homes Portfolio Segment [Member] | Acceptable [Member] |  |
Loan Receivable | 21,460 | 9,825
Manufactured Homes Portfolio Segment [Member] | Marginally Acceptable [Member] |  |
Loan Receivable | 176 | 184
Manufactured Homes Portfolio Segment [Member] | Pass [Member] |  |
Loan Receivable | 731 | 862
Manufactured Homes Portfolio Segment [Member] | Special Mention [Member] |  |
Loan Receivable | 0 | 0
Manufactured Homes Portfolio Segment [Member] | Substandard [Member] |  |
Loan Receivable | 0 | 0
Government Portfolio Segment [Member] |  |
Loan Receivable | 10,142 | 15,804
Government Portfolio Segment [Member] | Moderate [Member] |  |
Loan Receivable | 0 | 0
Government Portfolio Segment [Member] | Above Average Acceptable [Member] |  |
Loan Receivable | 0 | 1,889
Government Portfolio Segment [Member] | Acceptable [Member] |  |
Loan Receivable | 9,202 | 11,505
Government Portfolio Segment [Member] | Marginally Acceptable [Member] |  |
Loan Receivable | 940 | 2,410
Government Portfolio Segment [Member] | Pass [Member] |  |
Loan Receivable | 0 | 0
Government Portfolio Segment [Member] | Special Mention [Member] |  |
Loan Receivable | 0 | 0
Government Portfolio Segment [Member] | Substandard [Member] |  |
Loan Receivable | $ 0 | $ 0

X
- Definition Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919230-210447 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -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_NotesReceivableNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

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

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

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

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

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

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=nwin_HomeEquityPortfolioSegmentMember
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=nwin_ConstructionAndLandDevelopmentPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=nwin_MultifamilyPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=nwin_FarmlandPortfolioSegmentMember
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: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=nwin_ManufacturedHomesPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=nwin_GovernmentPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |