Investment Securities - Schedule of Available for Sale Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020
Available for sale, Amortized Cost
Due in one year or less	$ 0	$ 0
Due after one through five years	0	0
Due after five through ten years	0	0
Due after ten years	4,289	4,583
Total investment securities - available for sale, Amortized Cost	4,289	4,583
Available for sale, Estimated Fair Value
Due in one year or less	0	0
Due after one through five years	0	0
Due after five through ten years	0	0
Due after ten years	4,416	4,717
Total investment securities - available for sale, Estimated Fair Value	$ 4,416	$ 4,717

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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