Note 9. Investments - Supplemental Employee Retirement Plan Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020
Schedule of Trading Securities and Other Trading Assets
SERP investments	$ 11,067	$ 10,477
SERP obligation	11,067	10,477
Prepaid Expenses and Other Current Assets
Schedule of Trading Securities and Other Trading Assets
SERP investments	2,155	1,972
Other Noncurrent Assets
Schedule of Trading Securities and Other Trading Assets
SERP investments	8,912	8,505
Other Current Liabilities
Schedule of Trading Securities and Other Trading Assets
SERP obligation	2,155	1,972
Other Noncurrent Liabilities
Schedule of Trading Securities and Other Trading Assets
SERP obligation	$ 8,912	$ 8,505

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
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-SubTopic 210
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