Loans (Effect Of The Adoption Of CECL) (Details) - USD ($) $ in Thousands		Sep. 30, 2020	Jan. 01, 2020	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2018
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		$ 15,727		$ 10,238	$ 10,360	$ 8,653
Allowance for credit losses on off-balance sheet credit		570,000
SBL Non Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		4,801		4,985	5,330	4,636
SBL Commercial Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		3,552		1,472	1,256	941
SBL Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		423		432	391	250
Direct Lease Financing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		5,847		2,426	2,361	2,025
Advisor Financing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		199
Other Specialty Lending [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		148		12	12	60
Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		43		40	231	108
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses				318	$ 268	$ 240
SBA Loans Purchased For CRA Purposes [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		34,700
Incurred Loss Method [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses				10,238
Total allowance for credit losses				$ 10,238
Financing Receivable Allowance For Credit Losses, Percent Of Segment				0.56%
Incurred Loss Method [Member] | SBL Non Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses				$ 4,914
Financing Receivable Allowance For Credit Losses, Percent Of Segment				8.33%
Incurred Loss Method [Member] | SBL Commercial Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses				$ 1,458
Financing Receivable Allowance For Credit Losses, Percent Of Segment				0.71%
Incurred Loss Method [Member] | SBL Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses				$ 432
Financing Receivable Allowance For Credit Losses, Percent Of Segment				0.95%
Incurred Loss Method [Member] | Direct Lease Financing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses				$ 2,426
Financing Receivable Allowance For Credit Losses, Percent Of Segment				0.56%
Incurred Loss Method [Member] | SBLOC [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses				$ 440
Financing Receivable Allowance For Credit Losses, Percent Of Segment				0.05%
Incurred Loss Method [Member] | IBLOC [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses				$ 113
Financing Receivable Allowance For Credit Losses, Percent Of Segment				0.08%
Incurred Loss Method [Member] | Advisor Financing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable Allowance For Credit Losses, Percent Of Segment				0.00%
Incurred Loss Method [Member] | Other Specialty Lending [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses	[1]			$ 97
Financing Receivable Allowance For Credit Losses, Percent Of Segment	[1]			0.39%
Incurred Loss Method [Member] | Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses				$ 40
Financing Receivable Allowance For Credit Losses, Percent Of Segment				0.88%
Incurred Loss Method [Member] | Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses				$ 318
ASU 2016-13 [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		15,727	$ 12,874
Allowance for credit losses on off-balance sheet credit		570	569
Total allowance for credit losses		$ 16,297	$ 13,443
Financing Receivable Allowance For Credit Losses, Percent Of Segment		0.63%	0.71%
ASU 2016-13 [Member] | SBL Non Real Estate [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		$ 4,801	$ 4,766
Financing Receivable Allowance For Credit Losses, Percent Of Segment		1.64%	8.08%
ASU 2016-13 [Member] | SBL Commercial Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		$ 3,552	$ 2,009
Financing Receivable Allowance For Credit Losses, Percent Of Segment		1.31%	0.98%
ASU 2016-13 [Member] | SBL Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		$ 423	$ 571
Financing Receivable Allowance For Credit Losses, Percent Of Segment		1.56%	1.26%
ASU 2016-13 [Member] | Direct Lease Financing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		$ 5,847	$ 4,788
Financing Receivable Allowance For Credit Losses, Percent Of Segment		1.35%	1.10%
ASU 2016-13 [Member] | SBLOC [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		$ 534	$ 440
Financing Receivable Allowance For Credit Losses, Percent Of Segment		0.00%	0.05%
ASU 2016-13 [Member] | IBLOC [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		$ 180	$ 72
Financing Receivable Allowance For Credit Losses, Percent Of Segment		0.00%	0.05%
ASU 2016-13 [Member] | Advisor Financing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		$ 199
Financing Receivable Allowance For Credit Losses, Percent Of Segment		0.75%	0.00%
ASU 2016-13 [Member] | Other Specialty Lending [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses	[1]	$ 148	$ 170
Financing Receivable Allowance For Credit Losses, Percent Of Segment	[1]	6.75%	0.40%
ASU 2016-13 [Member] | Consumer [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable, Allowance for Credit Losses		$ 43	$ 58
Financing Receivable Allowance For Credit Losses, Percent Of Segment		1.13%	1.27%
ASU 2016-13 [Member] | Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable Allowance For Credit Losses, Percent Of Segment		0.00%

[1] Included in the table above under other consumer loans are demand deposit overdrafts reclassified as loan balances totaling $151,000 and $882,000 at September 30, 2020 and December 31, 2019, respectively.