Fair Value - Marketable Securities by Major Security Type (Detail) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020
Marketable Securities [Line Items]
Held to Maturity	$ 63	$ 61
Available for Sale	10,147	10,148
Total	10,210	10,209
Government and other debt securities
Marketable Securities [Line Items]
Held to Maturity	63	61
Available for Sale	10,147	10,148
Total	$ 10,210	$ 10,209

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), classified as current.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Amount of investment in debt security measured at amortized cost (held-to-maturity), classified as current.

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Amount of investment in marketable security, classified as current.

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