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Investments in Securities - Schedule of Financial Instruments Owned and Pledged as Collateral (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Public deposits
INVESTMENT SECURITIES
Securities owned and pledged as collateral amortized cost	$ 13,880	$ 17,412
Public deposits | Estimate of Fair Value Measurement
INVESTMENT SECURITIES
Fair Value	11,801	15,225
Collateralized borrowing accounts
INVESTMENT SECURITIES
Securities owned and pledged as collateral amortized cost	86,561	123,220
Collateralized borrowing accounts | Estimate of Fair Value Measurement
INVESTMENT SECURITIES
Fair Value	76,871	109,660
FHLBank borrowing account
INVESTMENT SECURITIES
Securities owned and pledged as collateral amortized cost	91,900
FHLBank borrowing account | Estimate of Fair Value Measurement
INVESTMENT SECURITIES
Fair Value	90,544
Federal Reserve Bank's Bank Term Funding Program
INVESTMENT SECURITIES
Securities owned and pledged as collateral amortized cost	186,836
Federal Reserve Bank's Bank Term Funding Program | Estimate of Fair Value Measurement
INVESTMENT SECURITIES
Fair Value	161,620
Other
INVESTMENT SECURITIES
Securities owned and pledged as collateral amortized cost	3,572	3,815
Other | Estimate of Fair Value Measurement
INVESTMENT SECURITIES
Fair Value	3,270	3,507
Securities Pledged as Collateral
INVESTMENT SECURITIES
Securities owned and pledged as collateral amortized cost	382,749	144,447
Securities Pledged as Collateral | Estimate of Fair Value Measurement
INVESTMENT SECURITIES
Fair Value	$ 344,106	$ 128,392

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- Definition

Amount of securities owned and pledged as collateral amortized cost.

+ References

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- Definition

The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 940
-SubTopic 320
-Name Accounting Standards Codification
-Section 45
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479035/940-320-45-2

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