Borrowed Funds (Summary of Short-term Borrowings) (Details) - Securities Sold under Agreements to Repurchase [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Short-term Debt [Line Items]
Outstanding at end of year	$ 57,699	$ 49,160
Weighted average interest rate at end of period	0.15%	0.19%
Maximum amount outstanding as of any month end	$ 72,396	$ 55,290
Average amount outstanding	$ 57,697	$ 46,519
Approximate weighted average rate during the year	0.15%	0.20%