Derivative Financial Instruments (Narrative) (Details) $ in Thousands	1 Months Ended	12 Months Ended
	Mar. 31, 2016 USD ($) contract	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Derivative [Line Items]
Cash flow hedge ineffectiveness		$ 100
Cash flow hedge ineffectiveness		Interest rate swap agreements are entered into with counterparties that meet established credit standards, and the Corporation believes that the credit risk inherent in these contracts is not significant at December 31, 2024.
Increase (decrease) in derivative fair value		$ (300)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Derivative [Line Items]
Unrealized holding (losses)/gains on investments		(301)	$ (310)
Unrealized tax (expense) benefit		(104)	(82)
Interest Rate Swap [Member]
Derivative [Line Items]
Interest rate swap notional amount	$ 30,000	15,000
Number of interest rate swap contracts | contract	4
Interest rate swap fair value		$ 500	$ 800
Derivative, fixed interest rate		4.65%