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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	Dec. 31, 2019	Jun. 30, 2019
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 144,896	$ 144,905
Gross Unrealized Gains	2,316	1,723
Gross Unrealized Losses	(405)	(337)
Fair Value	146,807	146,291
U.S. Government and Federal Agency and Government Sponsored Enterprises (GSEs) [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	10,665	12,654
Gross Unrealized Gains	405	296
Fair Value	11,070	12,950
Mortgage-backed Securities - GSE Residential [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	128,984	124,615
Gross Unrealized Gains	1,757	1,231
Gross Unrealized Losses	(354)	(336)
Fair Value	130,387	125,510
Small Business Administration [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	3,797	4,911
Gross Unrealized Gains		25
Gross Unrealized Losses	(50)	(1)
Fair Value	3,747	4,935
State and Political Subdivisions [Member]
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,450	2,725
Gross Unrealized Gains	154	171
Gross Unrealized Losses	(1)
Fair Value	$ 1,603	$ 2,896

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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=118939692&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.

+ References

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- Definition

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- Definition

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