Debt Securities, Excluding Accrued Interest, Amortization Expense

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- Definition

Represents the carrying value of held to maturity securities pledged to secure various public deposits and credit facilities of the Company.

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- Definition

Number Of Bank Technology Funds

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- Definition

Payments To Partnership Funds

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No definition available.

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- Definition

Potential Future Contribution Obligation

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- Definition

Represents the threshold percentage of shareholders equity amount held as securities by one issuer.

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No definition available.

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- Definition

Amount of contractual obligation, including, but not limited to, long-term debt, lease obligation, purchase obligation, and other commitments.

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- Definition

Amount, after allowance for credit loss, of accrued interest 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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- Definition

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

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- Definition

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

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- Definition

Sum of the carrying amounts as of the balance sheet date of all investments.

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- Definition

Cash inflow received as distributions, returns of capital, or sale proceeds from partnership interests held for investment purposes.

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- Definition

Amount of cash inflow from sale of 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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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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DEBT SECURITIES - Narrative (Details)	3 Months Ended			9 Months Ended		12 Months Ended
DEBT SECURITIES - Narrative (Details)	Sep. 30, 2026 USD ($)	Sep. 30, 2025 USD ($)	Mar. 31, 2023 fund	Sep. 30, 2026 USD ($)	Sep. 30, 2025 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2022 USD ($)
Debt Securities, Available-for-sale [Line Items]
Debt securities, amortization expense	$ 0	$ 0		$ 100,000	$ 0
Number of bank technology funds \| fund			2
Debt securities pledged as collateral	49,700,000			$ 49,700,000		$ 29,800,000
Shareholder equity held by one issuer (as a percent)				10.00%		10.00%
Proceeds from sale of debt securities				$ 0	$ 0
AFS, accrued interest receivable	200,000			200,000		$ 44,000
HTM, accrued interest receivable	1,200,000			1,200,000		400,000
Held-to-maturity debt securities, allowance for credit losses	189,000			189,000		74,000
Bank Technology Fund
Debt Securities, Available-for-sale [Line Items]
Contractual obligation						3,000,000.0	$ 6,000,000.0
Sale Leaseback Fund
Debt Securities, Available-for-sale [Line Items]
Contractual obligation						3,000,000.0
Fund Partnerships
Debt Securities, Available-for-sale [Line Items]
Contribution to committed investments				1,400,000		2,200,000
Proceeds from return on investments from partnerships				0		100,000
Balance with SBIC included in other assets	5,900,000			5,900,000		4,500,000
Committed investments to be made in the future				5,900,000
Small Business Investment Company ("SBIC")
Debt Securities, Available-for-sale [Line Items]
Contractual obligation	500,000			500,000
Contribution to committed investments				0		0
Small Business Investment Company ("SBIC") \| Other Assets
Debt Securities, Available-for-sale [Line Items]
Balance with SBIC included in other assets	$ 2,400,000			$ 2,400,000		$ 2,400,000