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Long-term borrowings (Details 1) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Total junior subordinated debentures owed to unconsolidated subsidiary trusts	$ 14,561	$ 14,316
Subordinated Debentures	73,989	73,895
Total long-term borrowings	88,550	88,211
TSEO Statutory Trust I
Debt Instrument [Line Items]
Total junior subordinated debentures owed to unconsolidated subsidiary trusts	2,509	2,472
Maple Leaf Financial Statutory Trust II
Debt Instrument [Line Items]
Total junior subordinated debentures owed to unconsolidated subsidiary trusts	7,684	7,517
Cortland Statutory Trust I
Debt Instrument [Line Items]
Total junior subordinated debentures owed to unconsolidated subsidiary trusts	$ 4,368	$ 4,327

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