Fair Value of Financial Instruments - Carrying amount and fair value of the Corporations other financial instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Jun. 30, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities - held to maturity, at cost	$ 176,162	$ 185,745
Investment securities - held to maturity	176,162	185,745
Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for investment, not recorded at fair value	992,592	938,596
Investment securities - held to maturity, at cost	176,162	185,745
FHLB - San Francisco stock	8,239	8,239
Deposits	985,324	955,504
Borrowings	115,000	85,000
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for investment, not recorded at fair value	921,980	892,339
Investment securities - held to maturity, at cost	154,506	171,724
FHLB - San Francisco stock	8,239	8,239
Deposits	868,587	917,220
Borrowings	113,320	84,299
Fair Value \| Fair Value, Inputs, Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for investment, not recorded at fair value	0	0
Investment securities - held to maturity, at cost	0	0
FHLB - San Francisco stock	0	0
Deposits	0	0
Borrowings	0	0
Fair Value \| Fair Value, Inputs, Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for investment, not recorded at fair value	0	0
Investment securities - held to maturity, at cost	154,506	171,724
FHLB - San Francisco stock	8,239	8,239
Deposits	0	0
Borrowings	0	0
Fair Value \| Fair Value, Inputs, Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for investment, not recorded at fair value	921,980	892,339
Investment securities - held to maturity, at cost	0	0
FHLB - San Francisco stock	0	0
Deposits	868,587	917,220
Borrowings	$ 113,320	$ 84,299

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- Definition

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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- Definition

Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

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- Definition

Fair value portion of investments in Federal Home Loan Bank (FHLBank) stock.

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