Note 10. Fair Value - Recurring Fair Value Measurements (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Jun. 30, 2018
Recurring Fair Value Measurements:
Trading Securities: Mutual funds in nonqualified SERP	$ 12,505	$ 12,114
Derivatives: Stock Warrants	1,500	1,500
Derivatives: Foreign exchange contracts	0	10
Contingent earn-out liability	200
Fair Value, Measurements, Recurring
Recurring Fair Value Measurements:
Total assets at fair value	102,835	98,546
Contingent earn-out liability	156	1,056
Total liabilities at fair value	156	1,066
Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 1
Recurring Fair Value Measurements:
Total assets at fair value	34,459	36,521
Contingent earn-out liability	0	0
Total liabilities at fair value	0	0
Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 2
Recurring Fair Value Measurements:
Total assets at fair value	66,876	60,525
Contingent earn-out liability	0	0
Total liabilities at fair value	0	10
Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 3
Recurring Fair Value Measurements:
Total assets at fair value	1,500	1,500
Contingent earn-out liability	156	1,056
Total liabilities at fair value	156	1,056
Foreign Exchange Contract \| Fair Value, Measurements, Recurring
Recurring Fair Value Measurements:
Derivatives: Foreign exchange contracts		10
Foreign Exchange Contract \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 1
Recurring Fair Value Measurements:
Derivatives: Foreign exchange contracts		0
Foreign Exchange Contract \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 2
Recurring Fair Value Measurements:
Derivatives: Foreign exchange contracts		10
Foreign Exchange Contract \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 3
Recurring Fair Value Measurements:
Derivatives: Foreign exchange contracts		0
Warrant \| Fair Value, Measurements, Recurring
Recurring Fair Value Measurements:
Derivatives: Stock Warrants	1,500	1,500
Warrant \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 1
Recurring Fair Value Measurements:
Derivatives: Stock Warrants	0	0
Warrant \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 2
Recurring Fair Value Measurements:
Derivatives: Stock Warrants	0	0
Warrant \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 3
Recurring Fair Value Measurements:
Derivatives: Stock Warrants	1,500	1,500
Money Market Funds \| Fair Value, Measurements, Recurring
Recurring Fair Value Measurements:
Cash equivalents	21,954	24,407
Money Market Funds \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 1
Recurring Fair Value Measurements:
Cash equivalents	21,954	24,407
Money Market Funds \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 2
Recurring Fair Value Measurements:
Cash equivalents	0	0
Money Market Funds \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 3
Recurring Fair Value Measurements:
Cash equivalents	0	0
Commercial Paper \| Fair Value, Measurements, Recurring
Recurring Fair Value Measurements:
Cash equivalents	25,055	25,918
Commercial Paper \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 1
Recurring Fair Value Measurements:
Cash equivalents	0	0
Commercial Paper \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 2
Recurring Fair Value Measurements:
Cash equivalents	25,055	25,918
Commercial Paper \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 3
Recurring Fair Value Measurements:
Cash equivalents	0	0
Certificates of Deposit
Recurring Fair Value Measurements:
Available-for-sale Securities	13,637	11,850
Certificates of Deposit \| Fair Value, Measurements, Recurring
Recurring Fair Value Measurements:
Available-for-sale Securities	13,637	11,850
Certificates of Deposit \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 1
Recurring Fair Value Measurements:
Available-for-sale Securities	0	0
Certificates of Deposit \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 2
Recurring Fair Value Measurements:
Available-for-sale Securities	13,637	11,850
Certificates of Deposit \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 3
Recurring Fair Value Measurements:
Available-for-sale Securities	0	0
Municipal Bonds
Recurring Fair Value Measurements:
Available-for-sale Securities	2,445	16,508
Municipal Bonds \| Fair Value, Measurements, Recurring
Recurring Fair Value Measurements:
Available-for-sale Securities	2,445	16,508
Municipal Bonds \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 1
Recurring Fair Value Measurements:
Available-for-sale Securities	0	0
Municipal Bonds \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 2
Recurring Fair Value Measurements:
Available-for-sale Securities	2,445	16,508
Municipal Bonds \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 3
Recurring Fair Value Measurements:
Available-for-sale Securities	0	0
US Treasury and Federal Agencies
Recurring Fair Value Measurements:
Available-for-sale Securities	25,739	6,249
US Treasury and Federal Agencies \| Fair Value, Measurements, Recurring
Recurring Fair Value Measurements:
Available-for-sale Securities	25,739	6,249
US Treasury and Federal Agencies \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 1
Recurring Fair Value Measurements:
Available-for-sale Securities	0	0
US Treasury and Federal Agencies \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 2
Recurring Fair Value Measurements:
Available-for-sale Securities	25,739	6,249
US Treasury and Federal Agencies \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 3
Recurring Fair Value Measurements:
Available-for-sale Securities	0	0
Mutual Fund \| Fair Value, Measurements, Recurring
Recurring Fair Value Measurements:
Trading Securities: Mutual funds in nonqualified SERP	12,505	12,114
Mutual Fund \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 1
Recurring Fair Value Measurements:
Trading Securities: Mutual funds in nonqualified SERP	12,505	12,114
Mutual Fund \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 2
Recurring Fair Value Measurements:
Trading Securities: Mutual funds in nonqualified SERP	0	0
Mutual Fund \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 3
Recurring Fair Value Measurements:
Trading Securities: Mutual funds in nonqualified SERP	$ 0	$ 0

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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Amount of liability recognized arising from contingent consideration in a business combination.

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Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Fair value of financial and nonfinancial obligations.

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Amount of investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading.

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