Loans Held for Investment - Schedule of Commercial real estate loans by property types and LTV (Details) - USD ($)	Jun. 30, 2024	Jun. 30, 2023
Loans Held for Investment
Total commercial real estate	$ 1,050,846,000
Total commercial real estate		$ 1,074,164,000
Mortgage loans
Loans Held for Investment
Total commercial real estate	$ 83,349,000
Total commercial real estate		$ 90,558,000
Percentage of Total commercial Real Estate	100.00%	100.00%
Weighted Average LTV	37	38
Mortgage loans | Office
Loans Held for Investment
Total commercial real estate	$ 26,774,000
Total commercial real estate		$ 33,198,000
Percentage of Total commercial Real Estate	32.00%	37.00%
Weighted Average LTV	43	44
Mortgage loans | Mixed use
Loans Held for Investment
Total commercial real estate	$ 16,090,000
Total commercial real estate		$ 17,920,000
Percentage of Total commercial Real Estate	19.00%	20.00%
Weighted Average LTV	35	36
Mortgage loans | Retail
Loans Held for Investment
Total commercial real estate	$ 12,501,000
Total commercial real estate		$ 12,991,000
Percentage of Total commercial Real Estate	15.00%	14.00%
Weighted Average LTV	30	32
Mortgage loans | Warehouse
Loans Held for Investment
Total commercial real estate	$ 11,924,000
Total commercial real estate		$ 10,644,000
Percentage of Total commercial Real Estate	14.00%	12.00%
Weighted Average LTV	31	31
Mortgage loans | Medical/dental office
Loans Held for Investment
Total commercial real estate	$ 7,084,000
Total commercial real estate		$ 6,641,000
Percentage of Total commercial Real Estate	9.00%	7.00%
Weighted Average LTV	44	50
Mortgage loans | Mobile home park
Loans Held for Investment
Total commercial real estate	$ 6,909,000
Total commercial real estate		$ 7,057,000
Percentage of Total commercial Real Estate	8.00%	8.00%
Weighted Average LTV	38	39
Mortgage loans | Restaurant/Fast Food
Loans Held for Investment
Total commercial real estate	$ 1,190,000
Total commercial real estate		$ 1,014,000
Percentage of Total commercial Real Estate	2.00%	1.00%
Weighted Average LTV	46	24
Mortgage loans | Automotive - non gasoline
Loans Held for Investment
Total commercial real estate	$ 578,000
Total commercial real estate		$ 485,000
Percentage of Total commercial Real Estate	1.00%	1.00%
Weighted Average LTV	26	19
Mortgage loans | Live/work
Loans Held for Investment
Total commercial real estate	$ 299,000
Total commercial real estate		$ 337,000
Weighted Average LTV	13	15
Mortgage loans | Light industrial/manufacturing
Loans Held for Investment
Total commercial real estate		$ 271,000
Weighted Average LTV		8
Mortgage loans | Commercial real estate
Loans Held for Investment
Total commercial real estate	$ 83,349,000
Total commercial real estate		$ 90,558,000
Mortgage loans | Commercial real estate | Office/Retail
Loans Held for Investment
Total commercial real estate	6,900,000
Total commercial real estate		8,200,000
Mortgage loans | Commercial real estate | Multi-family/Retail
Loans Held for Investment
Total commercial real estate	4,700,000
Total commercial real estate		5,600,000
Mortgage loans | Commercial real estate | Other Mixed Use
Loans Held for Investment
Total commercial real estate	3,000,000.0
Total commercial real estate		3,400,000
Mortgage loans | Commercial real estate | Multi-family/Commercial
Loans Held for Investment
Total commercial real estate	754,000
Mortgage loans | Commercial real estate | Multi-family/Office
Loans Held for Investment
Total commercial real estate	685,000
Total commercial real estate		700,000
Mortgage loans | Owner Occupied Loan Balance
Loans Held for Investment
Total commercial real estate	12,188,000
Total commercial real estate		12,839,000
Mortgage loans | Owner Occupied Loan Balance | Office
Loans Held for Investment
Total commercial real estate	6,690,000
Total commercial real estate		9,283,000
Mortgage loans | Owner Occupied Loan Balance | Mixed use
Loans Held for Investment
Total commercial real estate	293,000
Total commercial real estate		306,000
Mortgage loans | Owner Occupied Loan Balance | Warehouse
Loans Held for Investment
Total commercial real estate	2,076,000
Total commercial real estate		2,133,000
Mortgage loans | Owner Occupied Loan Balance | Medical/dental office
Loans Held for Investment
Total commercial real estate	2,439,000
Total commercial real estate		1,117,000
Mortgage loans | Owner Occupied Loan Balance | Restaurant/Fast Food
Loans Held for Investment
Total commercial real estate	690,000
Mortgage loans | Non Owner Occupied Loan Balance
Loans Held for Investment
Total commercial real estate	71,161,000
Total commercial real estate		77,719,000
Mortgage loans | Non Owner Occupied Loan Balance | Office
Loans Held for Investment
Total commercial real estate	20,084,000
Total commercial real estate		23,915,000
Mortgage loans | Non Owner Occupied Loan Balance | Mixed use
Loans Held for Investment
Total commercial real estate	15,797,000
Total commercial real estate		17,614,000
Mortgage loans | Non Owner Occupied Loan Balance | Retail
Loans Held for Investment
Total commercial real estate	12,501,000
Total commercial real estate		12,991,000
Mortgage loans | Non Owner Occupied Loan Balance | Warehouse
Loans Held for Investment
Total commercial real estate	9,848,000
Total commercial real estate		8,511,000
Mortgage loans | Non Owner Occupied Loan Balance | Medical/dental office
Loans Held for Investment
Total commercial real estate	4,645,000
Total commercial real estate		5,524,000
Mortgage loans | Non Owner Occupied Loan Balance | Mobile home park
Loans Held for Investment
Total commercial real estate	6,909,000
Total commercial real estate		7,057,000
Mortgage loans | Non Owner Occupied Loan Balance | Restaurant/Fast Food
Loans Held for Investment
Total commercial real estate	500,000
Total commercial real estate		1,014,000
Mortgage loans | Non Owner Occupied Loan Balance | Automotive - non gasoline
Loans Held for Investment
Total commercial real estate	578,000
Total commercial real estate		485,000
Mortgage loans | Non Owner Occupied Loan Balance | Live/work
Loans Held for Investment
Total commercial real estate	$ 299,000
Total commercial real estate		337,000
Mortgage loans | Non Owner Occupied Loan Balance | Light industrial/manufacturing
Loans Held for Investment
Total commercial real estate		$ 271,000