Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2023
Revenue from Contracts with Customers
Revenue from contracts with customers	$ 1,223	$ 1,281	$ 2,392	$ 2,731
Net unrealized gain on equity securities	6	21	44	35
Gain on sale of SBA loans	951	907	1,785	1,682
Mortgage banking income	53	4,149	142	6,645
Increase in cash value of life insurance	333	266	662	491
Real estate lease income	115	117	230	234
Loan servicing and other income	1,029	775	1,237	886
Other noninterest income	2,487	6,235	4,100	9,973
Total noninterest income	3,710	7,516	6,492	12,704
Service charges on deposit accounts
Revenue from Contracts with Customers
Revenue from contracts with customers	387	471	860	1,029
ATM and interchange fees
Revenue from Contracts with Customers
Revenue from contracts with customers	585	586	1,034	1,325
Commission income
Revenue from Contracts with Customers
Revenue from contracts with customers	220	189	442	317
Other
Revenue from Contracts with Customers
Revenue from contracts with customers	$ 31	$ 35	$ 56	$ 60

Amount represents the value of loan servicing and other income.

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Amount represents the value of real estate lease income.

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Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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Net gain (loss) resulting from the sales of securitized, pay-through debt securities collateralized by real estate mortgage loans (mortgages).

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The increase (decrease) in life insurance liability balances during the period.

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The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.

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Represents the total of noninterest income derived from certain activities and assets including (for example): (1) venture capital investments; (2) bank owned life insurance; (3) foreign currency transactions; and (4) mortgage servicing rights.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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