Loans (Credit Quality Indicators of Loans) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Auto Loan [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	$ 276,345
Term Loans Amortized Cost Basis by Origination Year, 2019	466,916
Term Loans Amortized Cost Basis by Origination Year, 2018	365,883
Term Loans Amortized Cost Basis by Origination Year, 2017	200,417
Term Loans Amortized Cost Basis by Origination Year, 2016	111,549
Term Loans Amortized Cost Basis by Origination Year, Prior	90,719
Total Loans	1,511,829
Auto Loan [Member] \| FICO Score, 1 to 660 [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	81,738
Term Loans Amortized Cost Basis by Origination Year, 2019	123,802
Term Loans Amortized Cost Basis by Origination Year, 2018	105,596
Term Loans Amortized Cost Basis by Origination Year, 2017	62,980
Term Loans Amortized Cost Basis by Origination Year, 2016	34,460
Term Loans Amortized Cost Basis by Origination Year, Prior	28,443
Total Loans	437,019
Auto Loan [Member] \| FICO Score, 661 to 699 [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	54,684
Term Loans Amortized Cost Basis by Origination Year, 2019	77,710
Term Loans Amortized Cost Basis by Origination Year, 2018	49,632
Term Loans Amortized Cost Basis by Origination Year, 2017	25,131
Term Loans Amortized Cost Basis by Origination Year, 2016	14,147
Term Loans Amortized Cost Basis by Origination Year, Prior	12,029
Total Loans	233,333
Auto Loan [Member] \| 700+ [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	126,267
Term Loans Amortized Cost Basis by Origination Year, 2019	222,082
Term Loans Amortized Cost Basis by Origination Year, 2018	176,364
Term Loans Amortized Cost Basis by Origination Year, 2017	93,445
Term Loans Amortized Cost Basis by Origination Year, 2016	52,035
Term Loans Amortized Cost Basis by Origination Year, Prior	40,791
Total Loans	710,984
Auto Loan [Member] \| No FICO [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	13,656
Term Loans Amortized Cost Basis by Origination Year, 2019	43,322
Term Loans Amortized Cost Basis by Origination Year, 2018	34,291
Term Loans Amortized Cost Basis by Origination Year, 2017	18,861
Term Loans Amortized Cost Basis by Origination Year, 2016	10,907
Term Loans Amortized Cost Basis by Origination Year, Prior	9,456
Total Loans	130,493
Commercial Portfolio Segment [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	445,273
Term Loans Amortized Cost Basis by Origination Year, 2019	291,272
Term Loans Amortized Cost Basis by Origination Year, 2018	350,138
Term Loans Amortized Cost Basis by Origination Year, 2017	135,933
Term Loans Amortized Cost Basis by Origination Year, 2016	69,313
Term Loans Amortized Cost Basis by Origination Year, Prior	297,044
Revolving Loans Amortized Cost Basis	485,267
Total Loans	2,074,240	$ 1,862,827
Commercial Portfolio Segment [Member] \| Commercial Secured By Real Estate [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	42,016
Term Loans Amortized Cost Basis by Origination Year, 2019	128,699
Term Loans Amortized Cost Basis by Origination Year, 2018	122,339
Term Loans Amortized Cost Basis by Origination Year, 2017	113,433
Term Loans Amortized Cost Basis by Origination Year, 2016	57,494
Term Loans Amortized Cost Basis by Origination Year, Prior	276,141
Revolving Loans Amortized Cost Basis	70,633
Total Loans	810,755	866,706
Commercial Portfolio Segment [Member] \| Other Commercial And Industrial [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	345,521
Term Loans Amortized Cost Basis by Origination Year, 2019	96,509
Term Loans Amortized Cost Basis by Origination Year, 2018	97,668
Term Loans Amortized Cost Basis by Origination Year, 2017	15,369
Term Loans Amortized Cost Basis by Origination Year, 2016	11,819
Term Loans Amortized Cost Basis by Origination Year, Prior	20,903
Revolving Loans Amortized Cost Basis	338,039
Total Loans	925,828	723,526
Commercial Portfolio Segment [Member] \| US Loan Program [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	57,736
Term Loans Amortized Cost Basis by Origination Year, 2019	66,064
Term Loans Amortized Cost Basis by Origination Year, 2018	130,131
Term Loans Amortized Cost Basis by Origination Year, 2017	7,131
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Revolving Loans Amortized Cost Basis	76,595
Total Loans	337,657	272,595
Mortgage Portfolio Segment [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	4,170
Term Loans Amortized Cost Basis by Origination Year, 2019	21,633
Term Loans Amortized Cost Basis by Origination Year, 2018	28,774
Term Loans Amortized Cost Basis by Origination Year, 2017	35,039
Term Loans Amortized Cost Basis by Origination Year, 2016	41,264
Term Loans Amortized Cost Basis by Origination Year, Prior	716,791
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total Loans	847,671	899,595
Mortgage Portfolio Segment [Member] \| Performing [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	4,170
Term Loans Amortized Cost Basis by Origination Year, 2019	21,330
Term Loans Amortized Cost Basis by Origination Year, 2018	28,735
Term Loans Amortized Cost Basis by Origination Year, 2017	34,413
Term Loans Amortized Cost Basis by Origination Year, 2016	40,319
Term Loans Amortized Cost Basis by Origination Year, Prior	678,226
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total Loans	807,193
Mortgage Portfolio Segment [Member] \| Nonperforming [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	303
Term Loans Amortized Cost Basis by Origination Year, 2018	39
Term Loans Amortized Cost Basis by Origination Year, 2017	626
Term Loans Amortized Cost Basis by Origination Year, 2016	945
Term Loans Amortized Cost Basis by Origination Year, Prior	38,565
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total Loans	40,478
Consumer Portfolio Segment [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	69,115
Term Loans Amortized Cost Basis by Origination Year, 2019	130,868
Term Loans Amortized Cost Basis by Origination Year, 2018	67,111
Term Loans Amortized Cost Basis by Origination Year, 2017	34,090
Term Loans Amortized Cost Basis by Origination Year, 2016	16,999
Term Loans Amortized Cost Basis by Origination Year, Prior	9,740
Revolving Loans Amortized Cost Basis	106,623
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total Loans	434,546	1,964,071
Consumer Portfolio Segment [Member] \| Personal loans [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	69,115
Term Loans Amortized Cost Basis by Origination Year, 2019	130,868
Term Loans Amortized Cost Basis by Origination Year, 2018	67,111
Term Loans Amortized Cost Basis by Origination Year, 2017	34,090
Term Loans Amortized Cost Basis by Origination Year, 2016	16,999
Term Loans Amortized Cost Basis by Origination Year, Prior	9,740
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total Loans	327,923	367,157
Consumer Portfolio Segment [Member] \| Personal loans [Member] \| Performing [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	69,033
Term Loans Amortized Cost Basis by Origination Year, 2019	130,325
Term Loans Amortized Cost Basis by Origination Year, 2018	66,447
Term Loans Amortized Cost Basis by Origination Year, 2017	33,686
Term Loans Amortized Cost Basis by Origination Year, 2016	16,673
Term Loans Amortized Cost Basis by Origination Year, Prior	9,367
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total Loans	325,531
Consumer Portfolio Segment [Member] \| Personal loans [Member] \| Nonperforming [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	82
Term Loans Amortized Cost Basis by Origination Year, 2019	543
Term Loans Amortized Cost Basis by Origination Year, 2018	664
Term Loans Amortized Cost Basis by Origination Year, 2017	404
Term Loans Amortized Cost Basis by Origination Year, 2016	326
Term Loans Amortized Cost Basis by Origination Year, Prior	373
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total Loans	2,392
Consumer Portfolio Segment [Member] \| Personal Lines Of Credit [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Revolving Loans Amortized Cost Basis	46,873
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total Loans	46,873	52,614
Consumer Portfolio Segment [Member] \| Personal Lines Of Credit [Member] \| Performing [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Revolving Loans Amortized Cost Basis	45,620
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total Loans	45,620
Consumer Portfolio Segment [Member] \| Personal Lines Of Credit [Member] \| Nonperforming [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Revolving Loans Amortized Cost Basis	1,253
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total Loans	1,253
Consumer Portfolio Segment [Member] \| Credit Cards [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Revolving Loans Amortized Cost Basis	59,618
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total Loans	59,618	75,202
Consumer Portfolio Segment [Member] \| Credit Cards [Member] \| Performing [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Revolving Loans Amortized Cost Basis	58,056
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total Loans	58,056
Consumer Portfolio Segment [Member] \| Credit Cards [Member] \| Nonperforming [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Revolving Loans Amortized Cost Basis	1,562
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total Loans	1,562
Consumer Portfolio Segment [Member] \| Overdraft [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Revolving Loans Amortized Cost Basis	132
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total Loans	132	216
Consumer Portfolio Segment [Member] \| Overdraft [Member] \| Performing [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Revolving Loans Amortized Cost Basis	132
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total Loans	132
Consumer Portfolio Segment [Member] \| Overdraft [Member] \| Nonperforming [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Revolving Loans Amortized Cost Basis	0
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total Loans	0
Consumer Portfolio Segment [Member] \| Auto Loan [Member]
Credit Quality Indicators [Line Items]
Total Loans		1,468,882
Mortgage And Consumer [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	73,285
Term Loans Amortized Cost Basis by Origination Year, 2019	152,501
Term Loans Amortized Cost Basis by Origination Year, 2018	95,885
Term Loans Amortized Cost Basis by Origination Year, 2017	69,129
Term Loans Amortized Cost Basis by Origination Year, 2016	58,263
Term Loans Amortized Cost Basis by Origination Year, Prior	726,531
Revolving Loans Amortized Cost Basis	106,623
Revolving Loans Converted to Term Loans Amortized Cost Basis	0
Total Loans	1,282,217	2,863,666
Pass [Member] \| Commercial Portfolio Segment [Member]
Credit Quality Indicators [Line Items]
Total Loans		1,732,019
Pass [Member] \| Commercial Portfolio Segment [Member] \| Commercial Secured By Real Estate [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	31,615
Term Loans Amortized Cost Basis by Origination Year, 2019	125,253
Term Loans Amortized Cost Basis by Origination Year, 2018	116,703
Term Loans Amortized Cost Basis by Origination Year, 2017	87,845
Term Loans Amortized Cost Basis by Origination Year, 2016	48,245
Term Loans Amortized Cost Basis by Origination Year, Prior	227,034
Revolving Loans Amortized Cost Basis	56,413
Total Loans	693,108	762,443
Pass [Member] \| Commercial Portfolio Segment [Member] \| Other Commercial And Industrial [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	345,220
Term Loans Amortized Cost Basis by Origination Year, 2019	87,578
Term Loans Amortized Cost Basis by Origination Year, 2018	97,500
Term Loans Amortized Cost Basis by Origination Year, 2017	15,175
Term Loans Amortized Cost Basis by Origination Year, 2016	8,903
Term Loans Amortized Cost Basis by Origination Year, Prior	15,342
Revolving Loans Amortized Cost Basis	306,602
Total Loans	876,320	706,831
Pass [Member] \| Commercial Portfolio Segment [Member] \| US Loan Program [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	57,673
Term Loans Amortized Cost Basis by Origination Year, 2019	64,563
Term Loans Amortized Cost Basis by Origination Year, 2018	79,209
Term Loans Amortized Cost Basis by Origination Year, 2017	7,131
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Revolving Loans Amortized Cost Basis	75,345
Total Loans	283,921	262,745
Pass [Member] \| Mortgage Portfolio Segment [Member]
Credit Quality Indicators [Line Items]
Total Loans		805,486
Pass [Member] \| Consumer Portfolio Segment [Member]
Credit Quality Indicators [Line Items]
Total Loans		1,947,055
Pass [Member] \| Consumer Portfolio Segment [Member] \| Personal loans [Member]
Credit Quality Indicators [Line Items]
Total Loans		365,579
Pass [Member] \| Consumer Portfolio Segment [Member] \| Personal Lines Of Credit [Member]
Credit Quality Indicators [Line Items]
Total Loans		52,393
Pass [Member] \| Consumer Portfolio Segment [Member] \| Credit Cards [Member]
Credit Quality Indicators [Line Items]
Total Loans		74,306
Pass [Member] \| Consumer Portfolio Segment [Member] \| Overdraft [Member]
Credit Quality Indicators [Line Items]
Total Loans		165
Pass [Member] \| Consumer Portfolio Segment [Member] \| Auto Loan [Member]
Credit Quality Indicators [Line Items]
Total Loans		1,454,612
Pass [Member] \| Mortgage And Consumer [Member]
Credit Quality Indicators [Line Items]
Total Loans		2,752,541
Special Mention [Member] \| Commercial Portfolio Segment [Member]
Credit Quality Indicators [Line Items]
Total Loans		72,354
Special Mention [Member] \| Commercial Portfolio Segment [Member] \| Commercial Secured By Real Estate [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	10,213
Term Loans Amortized Cost Basis by Origination Year, 2019	3,048
Term Loans Amortized Cost Basis by Origination Year, 2018	4,762
Term Loans Amortized Cost Basis by Origination Year, 2017	16,850
Term Loans Amortized Cost Basis by Origination Year, 2016	8,621
Term Loans Amortized Cost Basis by Origination Year, Prior	20,599
Revolving Loans Amortized Cost Basis	6,760
Total Loans	70,853	55,870
Special Mention [Member] \| Commercial Portfolio Segment [Member] \| Other Commercial And Industrial [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	301
Term Loans Amortized Cost Basis by Origination Year, 2019	8,135
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	4
Term Loans Amortized Cost Basis by Origination Year, Prior	5,470
Revolving Loans Amortized Cost Basis	27,984
Total Loans	41,894	6,634
Special Mention [Member] \| Commercial Portfolio Segment [Member] \| US Loan Program [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	63
Term Loans Amortized Cost Basis by Origination Year, 2019	1,501
Term Loans Amortized Cost Basis by Origination Year, 2018	43,101
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Revolving Loans Amortized Cost Basis	1,250
Total Loans	45,915	9,850
Special Mention [Member] \| Mortgage Portfolio Segment [Member]
Credit Quality Indicators [Line Items]
Total Loans		0
Special Mention [Member] \| Consumer Portfolio Segment [Member]
Credit Quality Indicators [Line Items]
Total Loans		0
Special Mention [Member] \| Consumer Portfolio Segment [Member] \| Personal loans [Member]
Credit Quality Indicators [Line Items]
Total Loans		0
Special Mention [Member] \| Consumer Portfolio Segment [Member] \| Personal Lines Of Credit [Member]
Credit Quality Indicators [Line Items]
Total Loans		0
Special Mention [Member] \| Consumer Portfolio Segment [Member] \| Credit Cards [Member]
Credit Quality Indicators [Line Items]
Total Loans		0
Special Mention [Member] \| Consumer Portfolio Segment [Member] \| Overdraft [Member]
Credit Quality Indicators [Line Items]
Total Loans		0
Special Mention [Member] \| Consumer Portfolio Segment [Member] \| Auto Loan [Member]
Credit Quality Indicators [Line Items]
Total Loans		0
Special Mention [Member] \| Mortgage And Consumer [Member]
Credit Quality Indicators [Line Items]
Total Loans		0
Substandard [Member] \| Commercial Portfolio Segment [Member]
Credit Quality Indicators [Line Items]
Total Loans		58,317
Substandard [Member] \| Commercial Portfolio Segment [Member] \| Commercial Secured By Real Estate [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	188
Term Loans Amortized Cost Basis by Origination Year, 2019	398
Term Loans Amortized Cost Basis by Origination Year, 2018	874
Term Loans Amortized Cost Basis by Origination Year, 2017	8,738
Term Loans Amortized Cost Basis by Origination Year, 2016	628
Term Loans Amortized Cost Basis by Origination Year, Prior	28,478
Revolving Loans Amortized Cost Basis	7,411
Total Loans	46,715	48,357
Substandard [Member] \| Commercial Portfolio Segment [Member] \| Other Commercial And Industrial [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	796
Term Loans Amortized Cost Basis by Origination Year, 2018	168
Term Loans Amortized Cost Basis by Origination Year, 2017	194
Term Loans Amortized Cost Basis by Origination Year, 2016	2,912
Term Loans Amortized Cost Basis by Origination Year, Prior	91
Revolving Loans Amortized Cost Basis	3,385
Total Loans	7,546	9,960
Substandard [Member] \| Commercial Portfolio Segment [Member] \| US Loan Program [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	7,821
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Revolving Loans Amortized Cost Basis	0
Total Loans	7,821	0
Substandard [Member] \| Mortgage Portfolio Segment [Member]
Credit Quality Indicators [Line Items]
Total Loans		94,109
Substandard [Member] \| Consumer Portfolio Segment [Member]
Credit Quality Indicators [Line Items]
Total Loans		17,016
Substandard [Member] \| Consumer Portfolio Segment [Member] \| Personal loans [Member]
Credit Quality Indicators [Line Items]
Total Loans		1,578
Substandard [Member] \| Consumer Portfolio Segment [Member] \| Personal Lines Of Credit [Member]
Credit Quality Indicators [Line Items]
Total Loans		221
Substandard [Member] \| Consumer Portfolio Segment [Member] \| Credit Cards [Member]
Credit Quality Indicators [Line Items]
Total Loans		896
Substandard [Member] \| Consumer Portfolio Segment [Member] \| Overdraft [Member]
Credit Quality Indicators [Line Items]
Total Loans		51
Substandard [Member] \| Consumer Portfolio Segment [Member] \| Auto Loan [Member]
Credit Quality Indicators [Line Items]
Total Loans		14,270
Substandard [Member] \| Mortgage And Consumer [Member]
Credit Quality Indicators [Line Items]
Total Loans		111,125
Doubtful [Member] \| Commercial Portfolio Segment [Member]
Credit Quality Indicators [Line Items]
Total Loans		137
Doubtful [Member] \| Commercial Portfolio Segment [Member] \| Commercial Secured By Real Estate [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	30
Revolving Loans Amortized Cost Basis	49
Total Loans	79	36
Doubtful [Member] \| Commercial Portfolio Segment [Member] \| Other Commercial And Industrial [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Revolving Loans Amortized Cost Basis	68
Total Loans	68	101
Doubtful [Member] \| Commercial Portfolio Segment [Member] \| US Loan Program [Member]
Credit Quality Indicators [Line Items]
Term Loans Amortized Cost Basis by Origination Year, 2020	0
Term Loans Amortized Cost Basis by Origination Year, 2019	0
Term Loans Amortized Cost Basis by Origination Year, 2018	0
Term Loans Amortized Cost Basis by Origination Year, 2017	0
Term Loans Amortized Cost Basis by Origination Year, 2016	0
Term Loans Amortized Cost Basis by Origination Year, Prior	0
Revolving Loans Amortized Cost Basis	0
Total Loans	0	0
Doubtful [Member] \| Mortgage Portfolio Segment [Member]
Credit Quality Indicators [Line Items]
Total Loans		0
Doubtful [Member] \| Consumer Portfolio Segment [Member]
Credit Quality Indicators [Line Items]
Total Loans		0
Doubtful [Member] \| Consumer Portfolio Segment [Member] \| Personal loans [Member]
Credit Quality Indicators [Line Items]
Total Loans		0
Doubtful [Member] \| Consumer Portfolio Segment [Member] \| Personal Lines Of Credit [Member]
Credit Quality Indicators [Line Items]
Total Loans		0
Doubtful [Member] \| Consumer Portfolio Segment [Member] \| Credit Cards [Member]
Credit Quality Indicators [Line Items]
Total Loans		0
Doubtful [Member] \| Consumer Portfolio Segment [Member] \| Overdraft [Member]
Credit Quality Indicators [Line Items]
Total Loans		0
Doubtful [Member] \| Consumer Portfolio Segment [Member] \| Auto Loan [Member]
Credit Quality Indicators [Line Items]
Total Loans		0

Loans (Credit Quality Indicators of Loans) (Details) - USD ($)
$ in Thousands

Sep. 30, 2020

Dec. 31, 2019

Auto Loan [Member]

Credit Quality Indicators [Line Items]

Term Loans Amortized Cost Basis by Origination Year, 2020

$ 276,345

Term Loans Amortized Cost Basis by Origination Year, 2019

466,916

Term Loans Amortized Cost Basis by Origination Year, 2018

365,883

Term Loans Amortized Cost Basis by Origination Year, 2017