Note 12. Investments - Schedule of Contractual Maturities on Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020
Certificates of Deposit
Schedule of Investments [Line Items]
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value	$ 3,519
Available-for-sale Securities, Debt Maturities, Rolling Year Two	0
Available-for-sale Securities	3,519	$ 5,294
U.S. Treasury Securities
Schedule of Investments [Line Items]
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value	10,000
Available-for-sale Securities, Debt Maturities, Rolling Year Two	0
Available-for-sale Securities	$ 10,000	$ 0