Loans Held for Investment - Schedule of Total Recorded Investment in Non-Performing Loans by Type (Details) - USD ($)	12 Months Ended
Jun. 30, 2022	Jun. 30, 2021
Financing Receivable, Allowance for Credit Losses [Line Items]
Unpaid Principal Balance	$ 1,541,000	$ 9,854,000
Related Charge-Offs	(33,000)	(436,000)
Recorded Investment	1,508,000	9,418,000
Related Allowance	(85,000)	(772,000)
Recorded Investment, Net of Allowance	1,423,000	8,646,000
Average Recorded Investment	4,186,000	9,090,000
Total interest income recognized	376,000	156,000
Mortgage loans, Single-family
Financing Receivable, Allowance for Credit Losses [Line Items]
With a related allowance Unpaid Principal Balance	993,000	7,400,000
Without a related allowance, Unpaid Principal Balance	548,000	1,335,000
Unpaid Principal Balance	1,541,000	8,735,000
With Related Allowance, Related Charge-Offs	0	0
With No Related Allowance, Related Charge-Offs	(33,000)	(436,000)
Related Charge-Offs	(33,000)	(436,000)
With Related Allowance, Recorded Investment	993,000	7,400,000
With No Related Allowance, Recorded Investment	515,000	899,000
Recorded Investment	1,508,000	8,299,000
Related Allowance	(85,000)	(434,000)
Recorded Investment, with Related Allowance, Net	908,000	6,966,000
Recorded Investment, with No Related Allowance, Net	515,000	899,000
Recorded Investment, Net of Allowance	1,423,000	7,865,000
With related allowances, Average Recorded Investment	2,594,000	7,187,000
Without related allowances, Average Recorded Investment	635,000	1,516,000
Average Recorded Investment	3,229,000	8,703,000
Interest income recognized with a related allowance	98,000	140,000
Interest income recognized without a related allowance	232,000
Total interest income recognized	330,000	140,000
Commercial business loans
Financing Receivable, Allowance for Credit Losses [Line Items]
With a related allowance Unpaid Principal Balance		0
Unpaid Principal Balance		0
With Related Allowance, Related Charge-Offs		0
Related Charge-Offs		0
With Related Allowance, Recorded Investment		0
Recorded Investment		0
Related Allowance		0
Recorded Investment, with Related Allowance, Net		0
Recorded Investment, Net of Allowance		0
With related allowances, Average Recorded Investment		13,000
Average Recorded Investment		13,000
Interest income recognized with a related allowance		1,000
Total interest income recognized		1,000
Mortgage Loans, Multi Family
Financing Receivable, Allowance for Credit Losses [Line Items]
With a related allowance Unpaid Principal Balance	0	1,119,000
Unpaid Principal Balance	0
With Related Allowance, Related Charge-Offs	0	0
Related Charge-Offs	0
With Related Allowance, Recorded Investment	0	1,119,000
Recorded Investment	0
Related Allowance		(338,000)
Recorded Investment, with Related Allowance, Net	0	781,000
Recorded Investment, Net of Allowance	0
With related allowances, Average Recorded Investment	957,000	374,000
Average Recorded Investment	957,000	374,000
Interest income recognized with a related allowance	46,000	15,000
Total interest income recognized	$ 46,000	$ 15,000

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