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Securities - Amortized Cost and Approximate Fair Value of Securities, Together with Gross Unrealized Gains and Losses of Securities (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Jun. 30, 2020
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 186,589	$ 155,588
Gross Unrealized Gains	4,639	7,029
Gross Unrealized Losses	(1,337)	(223)
Fair Value	189,891	162,394
US Treasury [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	990
Gross Unrealized Gains	6
Fair Value	996
U.S. Government and Federal Agency and Government Sponsored Enterprises (GSEs) [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	7,522	7,528
Gross Unrealized Gains	517	708
Fair Value	8,039	8,236
Mortgage-backed Securities - GSE Residential [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	167,711	143,033
Gross Unrealized Gains	4,011	6,044
Gross Unrealized Losses	(1,307)	(222)
Fair Value	170,415	148,855
Small Business Administration [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	9,115	3,578
Gross Unrealized Gains	105	62
Gross Unrealized Losses	(30)	(1)
Fair Value	9,190	3,640
State and Political Subdivisions [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,251	1,449
Gross Unrealized Gains	0	215
Gross Unrealized Losses		(1)
Fair Value	$ 1,251	$ 1,663

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

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- Definition

Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27161-111563

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- Definition

Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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