Loans (Changes In Allowance For Loan And Lease Losses By Loan Category) (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance	$ 10,238	$ 8,653	$ 8,653
CECL adjustment	2,637
Charge-offs	(3,528)	(1,389)	(2,993)
Recoveries	584	146	178
Provision (credit)	5,796	2,950	4,400
Ending balance	15,727	10,360	10,238
Ending balance: Individually evaluated for expected credit loss	2,897	3,483	3,142
Ending balance: Collectively evaluated for expected credit loss	12,830	6,877	7,096
Loans [Abstract]
Loans: Ending Balance	2,488,760	1,683,377	1,824,245
Ending balance: Individually evaluated for impairment	12,819	7,558	6,793
Ending balance: Collectively evaluated for impairment	2,475,941	1,675,819	1,817,452
SBL Non Real Estate [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance	4,985	4,636	4,636
CECL adjustment	(220)
Charge-offs	(1,350)	(995)	(1,362)
Recoveries	82	94	125
Provision (credit)	1,304	1,595	1,586
Ending balance	4,801	5,330	4,985
Ending balance: Individually evaluated for expected credit loss	1,818	3,037	2,961
Ending balance: Collectively evaluated for expected credit loss	2,983	2,293	2,024
Loans [Abstract]
Loans: Ending Balance	293,488	84,181	84,579
Ending balance: Individually evaluated for impairment	3,220	4,250	4,139
Ending balance: Collectively evaluated for impairment	290,268	79,931	80,440
SBL Commercial Mortgage [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance	1,472	941	941
CECL adjustment	537
Provision (credit)	1,543	315	531
Ending balance	3,552	1,256	1,472
Ending balance: Individually evaluated for expected credit loss	1,010	71	136
Ending balance: Collectively evaluated for expected credit loss	2,542	1,185	1,336
Loans [Abstract]
Loans: Ending Balance	270,264	209,008	218,110
Ending balance: Individually evaluated for impairment	7,517	458	1,047
Ending balance: Collectively evaluated for impairment	262,747	208,550	217,063
SBL Construction [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance	432	250	250
CECL adjustment	139
Provision (credit)	(148)	141	182
Ending balance	423	391	432
Ending balance: Individually evaluated for expected credit loss	26	35	36
Ending balance: Collectively evaluated for expected credit loss	397	356	396
Loans [Abstract]
Loans: Ending Balance	27,169	38,116	45,310
Ending balance: Individually evaluated for impairment	711	711	711
Ending balance: Collectively evaluated for impairment	26,458	37,405	44,599
Direct Lease Financing [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance	2,426	2,025	2,025
CECL adjustment	2,362
Charge-offs	(2,178)	(391)	(528)
Recoveries	502	51	51
Provision (credit)	2,735	676	878
Ending balance	5,847	2,361	2,426
Ending balance: Individually evaluated for expected credit loss	43	136
Ending balance: Collectively evaluated for expected credit loss	5,804	2,225	2,426
Loans [Abstract]
Loans: Ending Balance	430,675	412,755	434,460
Ending balance: Individually evaluated for impairment	804	424	286
Ending balance: Collectively evaluated for impairment	429,871	412,331	434,174
SBLOC/IBLOC [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance	553	393	393
CECL adjustment	(41)
Provision (credit)	202	118	160
Ending balance	714	511	553
Ending balance: Collectively evaluated for expected credit loss	714	511	553
Loans [Abstract]
Loans: Ending Balance	1,428,253	920,463	1,024,420
Ending balance: Collectively evaluated for impairment	1,428,253	920,463	1,024,420
Advisor Financing [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance
CECL adjustment
Charge-offs
Recoveries
Provision (credit)	199
Ending balance	199
Ending balance: Individually evaluated for expected credit loss
Ending balance: Collectively evaluated for expected credit loss	199
Loans [Abstract]
Loans: Ending Balance	26,600
Ending balance: Individually evaluated for impairment
Ending balance: Collectively evaluated for impairment	26,600
Other Specialty Lending [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance	12	60	60
CECL adjustment	158
Provision (credit)	(22)	(48)	(48)
Ending balance	148	12	12
Ending balance: Collectively evaluated for expected credit loss	148	12	12
Loans [Abstract]
Loans: Ending Balance	2,194	3,167	3,055
Ending balance: Collectively evaluated for impairment	2,194	3,167	3,055
Consumer [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance	40	108	108
CECL adjustment	20
Charge-offs		(3)	(1,103)
Recoveries		1	2
Provision (credit)	(17)	125	1,033
Ending balance	43	231	40
Ending balance: Individually evaluated for expected credit loss		204	9
Ending balance: Collectively evaluated for expected credit loss	43	27	31
Loans [Abstract]
Loans: Ending Balance	3,809	6,388	4,554
Ending balance: Individually evaluated for impairment	567	1,715	610
Ending balance: Collectively evaluated for impairment	3,242	4,673	3,944
Unallocated [Member]
Changes in allowance for loan and lease losses by loan category [Abstract]
Beginning balance	318	240	240
CECL adjustment	(318)
Provision (credit)		28	78
Ending balance		268	318
Ending balance: Collectively evaluated for expected credit loss		268	318
Loans [Abstract]
Loans: Ending Balance	6,308	9,299	9,757
Ending balance: Collectively evaluated for impairment	$ 6,308	$ 9,299	$ 9,757