Income Tax Disclosure [Text Block]	6 Months Ended
Jun. 30, 2018
Notes
Income Tax Disclosure	`Note 8.Income Taxes` The provisions for income taxes shown in the Condensed Consolidated Statements of Income were computed by applying the effective tax rate expected to be applicable for the reporting periods. In 2017, President Trump enacted tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Tax Act”). The Tax Act makes broad and complex changes to the U.S. tax code, including, but not limited to, reducing the Federal corporate income tax rate to 21%. As a result of IHC’s June 30 fiscal tax year, the Tax Act subjects IHC to a blended tax rate of 28% for its fiscal tax year ended June 30, 2018. Other differences between the Federal statutory income tax rate and the Company’s effective income tax rate are principally from the dividends received deduction and tax exempt interest income, state and local income taxes, and compensation related tax provisions.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-URI http://asc.fasb.org/topic&trid=2144680

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