Note 11. Investments (Policies)	9 Months Ended
Mar. 31, 2019
Investments [Abstract]
Investment, Policy [Policy Text Block]	Our investment policy dictates that municipal bonds, U.S. Treasury and federal agency securities must be investment grade quality.

- Definition

Disclosure of accounting policy for investments in financial assets, including marketable securities (debt and equity securities with readily determinable fair values), investments accounted for under the equity method and cost method, securities borrowed and loaned, and repurchase and resale agreements. For marketable securities, the disclosure may include the entity's accounting treatment for transfers between investment categories and how the fair values for such securities are determined. Also, for all investments, an entity may describe its policy for assessing, recognizing and measuring impairment of the investment.

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