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Investment Securities - Schedule of Amortized Cost and Fair Value of Securities Available-for-Sale and Securities Held-to-Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Jun. 30, 2024
Agency mortgage-backed: residential [Member]
Available-for-sale Securities
Available-for-sale Securities, Amortized cost	$ 8,996	$ 10,096
Available-for-sale Securities, Gross unrealized gains	1
Available-for-sale Securities, Gross unrealized losses	369	448
Available-for-sale Securities, Estimated fair value	8,628	9,648
Held-to-maturity Securities
Held-to-maturity Securities, Amortized cost	190	213
Held-to-maturity Securities, Gross unrealized gains
Held-to-maturity Securities, Gross unrealized losses	10	10
Held-to-maturity Securities, Estimated fair value	180	203
Mortgage-backed securities [Member] | Less Than 12 Months [Member]
Available-for-sale Securities
Available-for-sale Securities, Amortized cost	1,153	12,649
Available-for-sale Securities, Gross unrealized losses	32	569
Available-for-sale Securities, Estimated fair value	1,121	12,080
Held-to-maturity Securities
Held-to-maturity Securities, Amortized cost	65
Held-to-maturity Securities, Gross unrealized losses	1
Held-to-maturity Securities, Estimated fair value	64
Mortgage-backed securities [Member] | 12 Months or More [Member]
Available-for-sale Securities
Available-for-sale Securities, Amortized cost	7,833
Available-for-sale Securities, Gross unrealized losses	337
Available-for-sale Securities, Estimated fair value	7,496
Held-to-maturity Securities
Held-to-maturity Securities, Amortized cost	125
Held-to-maturity Securities, Gross unrealized losses	9
Held-to-maturity Securities, Estimated fair value	116
Total Temporarily Impaired AFS Securities [Member]
Available-for-sale Securities
Available-for-sale Securities, Amortized cost	8,986	12,649
Available-for-sale Securities, Gross unrealized losses	369	569
Available-for-sale Securities, Estimated fair value	8,617	12,080
Total Temporarily Impaired HTM Securities [Member]
Held-to-maturity Securities
Held-to-maturity Securities, Amortized cost	190	274
Held-to-maturity Securities, Gross unrealized losses	10	15
Held-to-maturity Securities, Estimated fair value	$ 180	259
Agency mortgage-backed securities [Member] | Less Than 12 Months [Member]
Held-to-maturity Securities
Held-to-maturity Securities, Amortized cost
Held-to-maturity Securities, Gross unrealized losses
Held-to-maturity Securities, Estimated fair value
Agency mortgage-backed securities [Member] | 12 Months or More [Member]
Held-to-maturity Securities
Held-to-maturity Securities, Amortized cost		274
Held-to-maturity Securities, Gross unrealized losses		15
Held-to-maturity Securities, Estimated fair value		$ 259

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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