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Acquisition Activity (Details Textual) (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2015
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Dec. 31, 2014
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| Business Acquisition [Line Items] | ||
| Assets, Total | $ 793,858us-gaap_Assets | $ 775,044us-gaap_Assets |
| Loans and Leases Receivable, Net Amount, Total | 483,951us-gaap_LoansAndLeasesReceivableNetReportedAmount | 481,792us-gaap_LoansAndLeasesReceivableNetReportedAmount |
| Deposits, Total | 649,370us-gaap_Deposits | 633,946us-gaap_Deposits |
| Liberty Savings Bank FSB [Member] | ||
| Business Acquisition [Line Items] | ||
| Assets, Total |
58,900us-gaap_Assets / dei_LegalEntityAxis = nwin_LibertySavingsBankFsbMember |
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| Loans and Leases Receivable, Net Amount, Total |
30,800us-gaap_LoansAndLeasesReceivableNetReportedAmount / dei_LegalEntityAxis = nwin_LibertySavingsBankFsbMember |
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| Deposits, Total |
55,100us-gaap_Deposits / dei_LegalEntityAxis = nwin_LibertySavingsBankFsbMember |
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| Combined Bank [Member] | ||
| Business Acquisition [Line Items] | ||
| Assets, Total |
842,900us-gaap_Assets / dei_LegalEntityAxis = nwin_CombinedBankMember |
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| Loans and Leases Receivable, Net Amount, Total |
534,000us-gaap_LoansAndLeasesReceivableNetReportedAmount / dei_LegalEntityAxis = nwin_CombinedBankMember |
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| Deposits, Total |
$ 699,200us-gaap_Deposits / dei_LegalEntityAxis = nwin_CombinedBankMember |
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- 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- 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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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