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Income Taxes (Details Textual) (USD $)
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12 Months Ended | |
|---|---|---|
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Dec. 31, 2014
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Dec. 31, 2013
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| Deferred Tax Assets, Valuation Allowance | $ 257,000us-gaap_DeferredTaxAssetsValuationAllowance | $ 288,000us-gaap_DeferredTaxAssetsValuationAllowance |
| Deferred Tax Liabilities Retained Earnings | 6,000,000nwin_DeferredTaxLiabilitiesRetainedEarnings | 6,000,000nwin_DeferredTaxLiabilitiesRetainedEarnings |
| Deferred Tax Liabilities, Tax Deferred Income | 2,000,000us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome | 2,000,000us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome |
| State and Local Jurisdiction [Member] | ||
| Operating Loss Carryforwards |
12,700,000us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember |
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| Operating Loss Carryforwards Date Of Expiration | 2022 | |
| Deferred Tax Assets, Valuation Allowance |
257,000us-gaap_DeferredTaxAssetsValuationAllowance / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember |
288,000us-gaap_DeferredTaxAssetsValuationAllowance / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember |
| Tax Credit Carryforward, Amount |
$ 128,000us-gaap_TaxCreditCarryforwardAmount / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember |
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| Tax Credit Carryforwards Expiration Date | 2017 |
| X | ||||||||||
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences from retained earnings. No definition available.
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| X | ||||||||||
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- Definition
Expiration date for operating loss carryforward. No definition available.
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| X | ||||||||||
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- Definition
Expiration date of the tax credit carryforward No definition available.
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| X | ||||||||||
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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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences from tax deferred revenue or other income not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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