XML 21 R26.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Acquisition Activity (Details Textual) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Business Acquisition [Line Items] |  |
Assets, Total | $ 793,858 us-gaap_Assets | $ 775,044 us-gaap_Assets
Loans and Leases Receivable, Net Amount, Total | 483,951 us-gaap_LoansAndLeasesReceivableNetReportedAmount | 481,792 us-gaap_LoansAndLeasesReceivableNetReportedAmount
Deposits, Total | 649,370 us-gaap_Deposits | 633,946 us-gaap_Deposits
Liberty Savings Bank FSB [Member] |  |
Business Acquisition [Line Items] |  |
Assets, Total |  | 58,900 us-gaap_Assets / dei_LegalEntityAxis = nwin_LibertySavingsBankFsbMember
Loans and Leases Receivable, Net Amount, Total |  | 30,800 us-gaap_LoansAndLeasesReceivableNetReportedAmount / dei_LegalEntityAxis = nwin_LibertySavingsBankFsbMember
Deposits, Total |  | 55,100 us-gaap_Deposits / dei_LegalEntityAxis = nwin_LibertySavingsBankFsbMember
Combined Bank [Member] |  |
Business Acquisition [Line Items] |  |
Assets, Total |  | 842,900 us-gaap_Assets / dei_LegalEntityAxis = nwin_CombinedBankMember
Loans and Leases Receivable, Net Amount, Total |  | 534,000 us-gaap_LoansAndLeasesReceivableNetReportedAmount / dei_LegalEntityAxis = nwin_CombinedBankMember
Deposits, Total |  | $ 699,200 us-gaap_Deposits / dei_LegalEntityAxis = nwin_CombinedBankMember

X
- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 + Details
Name: | us-gaap_Assets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 9 + Details
Name: | us-gaap_Deposits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_LoansAndLeasesReceivableNetReportedAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | dei_LegalEntityAxis=nwin_CombinedBankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=nwin_LibertySavingsBankFsbMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |