Note 10. Investments - Supplemental Employee Retirement Plan Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jun. 30, 2019
Schedule of Trading Securities and Other Trading Assets
SERP investments	$ 10,020	$ 9,268
SERP obligation	10,020	9,268
Prepaid Expenses and Other Current Assets
Schedule of Trading Securities and Other Trading Assets
SERP investments	1,905	1,728
Other Noncurrent Assets
Schedule of Trading Securities and Other Trading Assets
SERP investments	8,115	7,540
Other Current Liabilities
Schedule of Trading Securities and Other Trading Assets
SERP obligation	1,905	1,728
Other Noncurrent Liabilities
Schedule of Trading Securities and Other Trading Assets
SERP obligation	$ 8,115	$ 7,540

The carrying amount of the liability as of the balance sheet date to an individual under a deferred compensation arrangement. This amount may be the result of periodic accruals made over the period of active employment, or reflect termination benefits resulting contractual terms or a death benefit.

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-SubTopic 10
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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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