Loans (Commercial Loan Portfolio Categorized by Internally Assigned Asset Classification) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Commercial Business [Member]
Financing Receivable Recorded Investment [Line Items]
Current Fiscal Year	$ 34,725	$ 351,185
Prior Fiscal Year 1	283,243	113,040
Prior Fiscal Year 2	106,851	83,233
Prior Fiscal Year 3	66,511	33,163
Prior Fiscal Year 4	24,542	8,438
Prior	25,938	17,934
Revolving Loans Amortized Cost Basis	275,126	187,155
Revolving Loans Converted to Term	0	0
Total	816,936	794,148
Commercial Business [Member] \| Uncriticized [Member]
Financing Receivable Recorded Investment [Line Items]
Current Fiscal Year	34,725	350,992
Prior Fiscal Year 1	282,996	112,469
Prior Fiscal Year 2	106,625	82,029
Prior Fiscal Year 3	65,350	31,990
Prior Fiscal Year 4	23,823	8,195
Prior	24,702	16,600
Revolving Loans Amortized Cost Basis	268,143	179,770
Revolving Loans Converted to Term	0	0
Total	806,364	782,045
Commercial Business [Member] \| Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Current Fiscal Year	0	0
Prior Fiscal Year 1	0	360
Prior Fiscal Year 2	1	21
Prior Fiscal Year 3	42	709
Prior Fiscal Year 4	566	41
Prior	1,002	1,025
Revolving Loans Amortized Cost Basis	2,795	2,995
Revolving Loans Converted to Term	0	0
Total	4,406	5,151
Commercial Business [Member] \| Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Current Fiscal Year	0	193
Prior Fiscal Year 1	247	211
Prior Fiscal Year 2	225	1,183
Prior Fiscal Year 3	1,119	464
Prior Fiscal Year 4	153	202
Prior	234	309
Revolving Loans Amortized Cost Basis	4,188	4,390
Revolving Loans Converted to Term	0	0
Total	6,166	6,952
Commercial Business [Member] \| Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Current Fiscal Year	0	0
Prior Fiscal Year 1	0	0
Prior Fiscal Year 2	0	0
Prior Fiscal Year 3	0	0
Prior Fiscal Year 4	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	0	0
Commercial Mortgage [Member]
Financing Receivable Recorded Investment [Line Items]
Current Fiscal Year	47,989	324,852
Prior Fiscal Year 1	346,818	272,232
Prior Fiscal Year 2	265,271	185,234
Prior Fiscal Year 3	167,642	190,949
Prior Fiscal Year 4	188,854	87,174
Prior	259,174	192,487
Revolving Loans Amortized Cost Basis	1,093	973
Revolving Loans Converted to Term	0	0
Total	1,276,841	1,253,901
Commercial Mortgage [Member] \| Uncriticized [Member]
Financing Receivable Recorded Investment [Line Items]
Current Fiscal Year	47,489	310,364
Prior Fiscal Year 1	332,420	227,406
Prior Fiscal Year 2	220,441	163,839
Prior Fiscal Year 3	146,250	161,771
Prior Fiscal Year 4	159,788	74,915
Prior	208,781	154,399
Revolving Loans Amortized Cost Basis	895	731
Revolving Loans Converted to Term	0	0
Total	1,116,064	1,093,425
Commercial Mortgage [Member] \| Special Mention [Member]
Financing Receivable Recorded Investment [Line Items]
Current Fiscal Year	500	14,299
Prior Fiscal Year 1	14,067	42,305
Prior Fiscal Year 2	39,480	19,505
Prior Fiscal Year 3	19,511	27,530
Prior Fiscal Year 4	27,305	12,256
Prior	40,518	28,744
Revolving Loans Amortized Cost Basis	0	43
Revolving Loans Converted to Term	0	0
Total	141,381	144,682
Commercial Mortgage [Member] \| Substandard [Member]
Financing Receivable Recorded Investment [Line Items]
Current Fiscal Year	0	189
Prior Fiscal Year 1	331	2,521
Prior Fiscal Year 2	5,350	1,890
Prior Fiscal Year 3	1,881	1,648
Prior Fiscal Year 4	1,761	3
Prior	9,875	9,344
Revolving Loans Amortized Cost Basis	198	199
Revolving Loans Converted to Term	0	0
Total	19,396	15,794
Commercial Mortgage [Member] \| Doubtful [Member]
Financing Receivable Recorded Investment [Line Items]
Current Fiscal Year	0	0
Prior Fiscal Year 1	0	0
Prior Fiscal Year 2	0	0
Prior Fiscal Year 3	0	0
Prior Fiscal Year 4	0	0
Prior	0	0
Revolving Loans Amortized Cost Basis	0	0
Revolving Loans Converted to Term	0	0
Total	$ 0	$ 0

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Amount of financing receivable originated more than five years prior to current fiscal year.

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Amount of financing receivable originated four years prior to current fiscal year.

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Amount of financing receivable originated in current fiscal year.

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Amount of financing receivable originated in fiscal year prior to current fiscal year.

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Amount of financing receivable originated three years prior to current fiscal year.

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Amount of financing receivable originated two years prior to current fiscal year.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of financing receivable that can be withdrawn, repaid and redrawn.

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Amount of revolving financing receivable converted to term loan.

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