Note 1. Business Description and Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Dec. 31, 2016
Summary of Significant Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation: The Condensed Consolidated Financial Statements presented herein reflect the consolidated financial position as of December 31, 2016 and June 30, 2016, results of operations for the three and six months ended December 31, 2016 and 2015, and cash flows for the six months ended December 31, 2016 and 2015. The financial data presented herein is unaudited and should be read in conjunction with the annual Consolidated Financial Statements as of and for the year ended June 30, 2016 and related notes thereto included in our Annual Report on Form 10-K. As such, certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted, although we believe that the disclosures are adequate to make the information presented not misleading. Intercompany transactions and balances have been eliminated. Management believes the financial statements include all adjustments (consisting only of normal recurring adjustments) considered necessary to present fairly the financial statements for the interim periods. The results of operations for the interim periods shown in this report are not necessarily indicative of results for any future interim period or for the entire fiscal year.
Notes Receivable and Trade Accounts Receivable	Notes Receivable and Trade Accounts Receivable: Notes receivable and trade accounts receivable are recorded per the terms of the agreement or sale, and accrued interest is recognized when earned. We determine on a case-by-case basis the cessation of accruing interest, the resumption of accruing interest, the method of recording payments received on nonaccrual receivables, and the delinquency status for our limited number of notes receivable. In the ordinary course of business, customers periodically negotiate extended payment terms on trade accounts receivable. Customary terms require payment within 30 to 45 days, with any terms beyond 45 days being considered extended payment terms. We may utilize accounts receivable factoring arrangements with third-party financial institutions in order to extend terms for the customer without negatively impacting our cash flow. These arrangements in all cases do not contain recourse provisions which would obligate us in the event of our customers’ failure to pay. Receivables are considered sold when they are transferred beyond the reach of Kimball Electronics and its creditors, the purchaser has the right to pledge or exchange the receivables, and we have surrendered control over the transferred receivables.
Banker's Acceptance Drafts	The Company’s China operation, in limited circumstances, may receive banker’s acceptance drafts from customers as payment for their trade accounts receivable. The banker’s acceptance drafts are non-interest bearing and primarily mature within six months from the origination date. The Company has the ability to sell the drafts at a discount or transfer the drafts in settlement of current accounts payable prior to the scheduled maturity date. These drafts, which totaled $6.0 million at December 31, 2016 and $5.7 million at June 30, 2016, are reflected in the Receivables line on the Condensed Consolidated Balance Sheets until the banker’s drafts are sold at a discount, transferred in settlement of current accounts payable, or cash is received at maturity.
Non-operating Income (Expense), net	Non-operating Income (Expense), net: The Non-operating income (expense), net line item includes the impact of such items as foreign currency rate movements and related derivative gain or loss, fair value adjustments on supplemental employee retirement plan (“SERP”) investments, bank charges, and other non-operating income and expense items that are not directly related to operations. The Bargain purchase gain on acquisition relates to the acquisition of Aircom Manufacturing, Inc. during the six months ended December 31, 2016 and resulted from the estimated fair values of the assets acquired and liabilities recorded being greater than the consideration paid. See Note 2 - Acquisitions of Notes to Condensed Consolidated Financial Statements for more information on the bargain purchase gain. The gain (loss) on SERP investments is offset by a change in the SERP liability that is recognized in Selling and Administrative Expenses.
Income Taxes	Income Taxes: In determining the quarterly provision for income taxes, we use an estimated annual effective tax rate which is based on expected annual income, statutory tax rates, and available tax planning opportunities in the various jurisdictions in which we operate. Unusual or infrequently occurring items are separately recognized in the quarter in which they occur.
Emerging Growth Company Reporting Requirements	“Emerging Growth Company” Reporting Requirements: The Company qualifies as an “emerging growth company” as defined in the Jumpstart Our Business Startups Act (the “JOBS Act”). For as long as a company is deemed to be an “emerging growth company,” it may take advantage of specified reduced reporting and other regulatory requirements that are generally unavailable to other public companies. Among other things, we are not required to provide an auditor attestation report on the assessment of the internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act of 2002 (the “Sarbanes-Oxley Act”). Section 107 of the JOBS Act also provides that an “emerging growth company” can delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We have elected to take advantage of this extended transition period. Our financial statements may therefore not be comparable to those of companies that comply with such new or revised accounting standards.
New Accounting Standards	New Accounting Standards: In February 2016, the Financial Accounting Standards Board (“FASB”) issued guidance on leases. The new guidance requires lessees to recognize assets and liabilities on the balance sheet for the rights and obligations created by those leases with terms of more than 12 months. Under the current guidance, only capital leases are recognized on the balance sheet. The new guidance requires additional qualitative and quantitative disclosures. The new guidance is effective for our fiscal year 2020 financial statements. We are currently evaluating the impact of the adoption of this guidance on our consolidated financial statements. In November 2015, the FASB issued guidance on the balance sheet classification of deferred taxes. Under the current guidance, deferred tax liabilities and assets must be separated into current and noncurrent amounts in a classified statement of financial position. The new guidance requires deferred tax liabilities and assets be classified as noncurrent in a classified statement of financial position. The new guidance does not change the requirement that deferred tax liabilities and assets of a tax-paying component of an entity to be offset and presented as a single amount. The guidance is effective for our fiscal year 2019 annual financial statements and interim periods within annual periods for our fiscal year 2020, with earlier application permitted as of the beginning of an interim or annual reporting period. The guidance offers two acceptable adoption methods: (i) retrospective adoption to all periods presented; or (ii) prospective adoption to all deferred tax liabilities and assets. We do not expect the adoption of this standard to have a material effect on our financial position, results of operations, or cash flows. In July 2015, the FASB issued guidance on simplifying the measurement of inventory. The guidance amends the subsequent measurement of inventory from the lower of cost or market to the lower of cost and net realizable value. Under the current guidance, market value could be replacement cost, net realizable value, or net realizable value less an approximately normal profit margin. Within the scope of the new guidance, an entity should measure inventory at the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. The guidance is effective for our fiscal year 2018 financial statements. We do not expect the adoption of this standard to have a material effect on our financial position, results of operations, or cash flows. In May 2014, the FASB issued guidance on the recognition of revenue from contracts with customers. The core principle of the guidance is that a company should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration which the company expects to receive in exchange for those goods or services. To achieve this core principle, the guidance provides a five-step analysis of transactions to determine when and how revenue is recognized. The guidance addresses several areas including transfer of control, contracts with multiple performance obligations, and costs to obtain and fulfill contracts. The guidance also requires additional disclosure about the nature, amount, timing, and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. In August 2015, the FASB issued additional guidance deferring the effective date for one year while allowing entities the option to adopt one year early. The guidance is effective for our fiscal year 2020 financial statements using either of two acceptable adoption methods: (i) retrospective adoption to each prior reporting period presented with the option to elect certain practical expedients; or (ii) adoption with the cumulative effect of initially applying the guidance recognized at the date of initial application and providing certain additional disclosures. We are currently assessing the impact, including changes required in our business processes and information technology systems, to adopt this guidance. We have not yet selected a transition method nor determined the effect of this guidance on our consolidated financial statements.

Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.

- Definition

Disclosure of accounting policy for trade and other accounts receivable, and finance, loan and lease receivables, including those classified as held for investment and held for sale. This disclosure may include (1) the basis at which such receivables are carried in the entity's statements of financial position (2) how the level of the valuation allowance for receivables is determined (3) when impairments, charge-offs or recoveries are recognized for such receivables (4) the treatment of origination fees and costs, including the amortization method for net deferred fees or costs (5) the treatment of any premiums or discounts or unearned income (6) the entity's income recognition policies for such receivables, including those that are impaired, past due or placed on nonaccrual status and (7) the treatment of foreclosures or repossessions (8) the nature and amount of any guarantees to repurchase receivables.

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