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v2.4.1.9

Income Taxes (Details Textual) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013
Deferred Tax Assets, Valuation Allowance | $ 257,000 us-gaap_DeferredTaxAssetsValuationAllowance | $ 288,000 us-gaap_DeferredTaxAssetsValuationAllowance
Deferred Tax Liabilities Retained Earnings | 6,000,000 nwin_DeferredTaxLiabilitiesRetainedEarnings | 6,000,000 nwin_DeferredTaxLiabilitiesRetainedEarnings
Deferred Tax Liabilities, Tax Deferred Income | 2,000,000 us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome | 2,000,000 us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome
State and Local Jurisdiction [Member] |  |
Operating Loss Carryforwards | 12,700,000 us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember |
Operating Loss Carryforwards Date Of Expiration | 2022 |
Deferred Tax Assets, Valuation Allowance | 257,000 us-gaap_DeferredTaxAssetsValuationAllowance / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember | 288,000 us-gaap_DeferredTaxAssetsValuationAllowance / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember
Tax Credit Carryforward, Amount | $ 128,000 us-gaap_TaxCreditCarryforwardAmount / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember |
Tax Credit Carryforwards Expiration Date | 2017 |

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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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