Loans (Allowance for Credit Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	$ 15,074	$ 15,009	$ 15,057	$ 15,086
Provision for credit losses	(705)		(705)	160
Recoveries	8	69	46	161
Charge-offs	(1)	(230)	(22)	(239)
Ending balance	15,786	14,848	15,786	14,848
Allowance for Credit Losses:
Individually evaluated for impairment	319		319		$ 360
Collectively evaluated for impairment	15,467		15,467		14,697
Balances, end of period	15,786	14,848	15,786	14,848	15,057
Loans:
Individually evaluated for impairment	8,210		8,210		10,067
Collectively evaluated for impairment	1,364,188		1,364,188		1,181,592
Balances, end of period	1,372,398		1,372,398		1,191,659
Residential Real Estate [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	2,357	3,087	2,498	3,408
Provision for credit losses	9	322	(148)	647
Recoveries		4	32	8
Charge-offs		(229)		(229)
Ending balance	2,366	2,540	2,366	2,540
Allowance for Credit Losses:
Individually evaluated for impairment	165		165		178
Collectively evaluated for impairment	2,201		2,201		2,320
Balances, end of period	2,366	2,540	2,366	2,540	2,498
Loans:
Individually evaluated for impairment	7,307		7,307		9,006
Collectively evaluated for impairment	196,355		196,355		192,353
Balances, end of period	203,662		203,662		201,359
Commercial Real Estate [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	9,183	9,320	8,758	9,453
Provision for credit losses	(107)	568	532	701
Ending balance	9,290	8,752	9,290	8,752
Allowance for Credit Losses:
Collectively evaluated for impairment	9,290		9,290		8,758
Balances, end of period	9,290	8,752	9,290	8,752	8,758
Loans:
Individually evaluated for impairment	594		594		696
Collectively evaluated for impairment	842,851		842,851		704,292
Balances, end of period	843,445		843,445		704,988
Commercial and Industrial [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	2,355	2,005	2,775	1,689
Provision for credit losses	311	(398)	115	(627)
Recoveries	5	64	11	151
Ending balance	2,671	2,467	2,671	2,467
Allowance for Credit Losses:
Individually evaluated for impairment	50		50		71
Collectively evaluated for impairment	2,621		2,621		2,704
Balances, end of period	2,671	2,467	2,671	2,467	2,775
Loans:
Individually evaluated for impairment	99		99		141
Collectively evaluated for impairment	131,172		131,172		146,451
Balances, end of period	131,271		131,271		146,592
Foreign Banks [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	491	407	457	348
Provision for credit losses	(160)	(147)	(194)	(206)
Ending balance	651	554	651	554
Allowance for Credit Losses:
Collectively evaluated for impairment	651		651		457
Balances, end of period	651	554	651	554	457
Loans:
Collectively evaluated for impairment	84,770		84,770		59,491
Balances, end of period	84,770		84,770		59,491
Consumer and Other [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	688	190	569	188
Provision for credit losses	(118)	(345)	(242)	(355)
Recoveries		1	3	2
Charge-offs	(1)	(1)	(6)	(10)
Ending balance	808	535	808	535
Allowance for Credit Losses:
Individually evaluated for impairment	104		104		111
Collectively evaluated for impairment	704		704		458
Balances, end of period	808	$ 535	808	$ 535	569
Loans:
Individually evaluated for impairment	210		210		224
Collectively evaluated for impairment	109,040		109,040		79,005
Balances, end of period	$ 109,250		$ 109,250		$ 79,229