v3.26.1

Fair Value - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - Recurring [Member] - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Carrying Value [Member]
Securities available for sale:
U.S. government sponsored enterprises	$ 31,772	$ 85,617
State and political subdivisions	9	18
Mortgage backed securities and collateralized mortgage obligations - residential	206,290	213,128
Corporate bonds	59,932	44,581
Small Business Administration - guaranteed participation securities	11,710	14,141
Other	705	700
Total securities available for sale	310,418	358,185
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Securities available for sale:
U.S. government sponsored enterprises	0	0
State and political subdivisions	0	0
Mortgage backed securities and collateralized mortgage obligations - residential	0	0
Corporate bonds	0	0
Small Business Administration - guaranteed participation securities	0	0
Other	0	0
Total securities available for sale	0	0
Significant Other Observable Inputs (Level 2) [Member]
Securities available for sale:
U.S. government sponsored enterprises	31,772	85,617
State and political subdivisions	9	18
Mortgage backed securities and collateralized mortgage obligations - residential	206,290	213,128
Corporate bonds	59,932	44,581
Small Business Administration - guaranteed participation securities	11,710	14,141
Other	705	700
Total securities available for sale	310,418	358,185
Significant Unobservable Inputs (Level 3) [Member]
Securities available for sale:
U.S. government sponsored enterprises	0	0
State and political subdivisions	0	0
Mortgage backed securities and collateralized mortgage obligations - residential	0	0
Corporate bonds	0	0
Small Business Administration - guaranteed participation securities	0	0
Other	0	0
Total securities available for sale	$ 0	$ 0

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Corporate bond securities.

+ References

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+ References

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Amount 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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TRUSTCO BANK CORP N Y 10-K