Loans and Allowances for Credit Losses, Credit Quality Indicators (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	$ 3,395,423	$ 3,678,190
Financing Receivable, Originated, Year Two	3,387,863	2,680,781
Financing Receivable, Originated, Year Three	2,252,921	2,305,870
Financing Receivable, Originated, Year Four	1,886,189	1,579,560
Financing Receivable, Originated, Year Five	1,202,794	1,250,651
Financing Receivable, Originated, More Than Five Years	3,306,339	3,124,953
Financing Receivable, Revolving	6,322,156	5,559,595
Financing Receivable, Revolving, Converted to Term Loan	36,772	26,080
Total	21,790,457	20,205,680
Commercial [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	2,079,890	2,115,523
Financing Receivable, Originated, Year Two	1,642,910	1,284,235
Financing Receivable, Originated, Year Three	1,054,262	1,142,464
Financing Receivable, Originated, Year Four	908,859	995,008
Financing Receivable, Originated, Year Five	788,996	761,286
Financing Receivable, Originated, More Than Five Years	1,867,693	1,725,540
Financing Receivable, Revolving	5,252,741	4,479,513
Financing Receivable, Revolving, Converted to Term Loan	12,335	2,896
Total	13,607,686	12,506,465
Commercial [Member] | Energy [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	165,547	263,341
Financing Receivable, Originated, Year Two	87,788	73,425
Financing Receivable, Originated, Year Three	31,140	17,099
Financing Receivable, Originated, Year Four	14,555	14,362
Financing Receivable, Originated, Year Five	6,635	4,741
Financing Receivable, Originated, More Than Five Years	6,071	8,195
Financing Receivable, Revolving	3,050,327	2,625,721
Financing Receivable, Revolving, Converted to Term Loan	9,525	0
Total	3,371,588	3,006,884
Commercial [Member] | Healthcare [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	734,327	570,635
Financing Receivable, Originated, Year Two	603,595	589,193
Financing Receivable, Originated, Year Three	515,393	559,276
Financing Receivable, Originated, Year Four	489,417	506,083
Financing Receivable, Originated, Year Five	470,642	330,231
Financing Receivable, Originated, More Than Five Years	783,897	698,828
Financing Receivable, Revolving	229,330	160,668
Financing Receivable, Revolving, Converted to Term Loan	22	26
Total	3,826,623	3,414,940
Commercial [Member] | Services [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	600,687	696,626
Financing Receivable, Originated, Year Two	515,341	405,992
Financing Receivable, Originated, Year Three	300,785	295,371
Financing Receivable, Originated, Year Four	202,643	287,001
Financing Receivable, Originated, Year Five	162,517	244,397
Financing Receivable, Originated, More Than Five Years	761,169	799,961
Financing Receivable, Revolving	736,946	637,278
Financing Receivable, Revolving, Converted to Term Loan	837	567
Total	3,280,925	3,367,193
Commercial [Member] | General business [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	579,329	584,921
Financing Receivable, Originated, Year Two	436,186	215,625
Financing Receivable, Originated, Year Three	206,944	270,718
Financing Receivable, Originated, Year Four	202,244	187,562
Financing Receivable, Originated, Year Five	149,202	181,917
Financing Receivable, Originated, More Than Five Years	316,556	218,556
Financing Receivable, Revolving	1,236,138	1,055,846
Financing Receivable, Revolving, Converted to Term Loan	1,951	2,303
Total	3,128,550	2,717,448
Commercial real estate [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	854,039	717,400
Financing Receivable, Originated, Year Two	1,146,736	711,231
Financing Receivable, Originated, Year Three	616,509	879,359
Financing Receivable, Originated, Year Four	725,150	423,127
Financing Receivable, Originated, Year Five	276,614	294,436
Financing Receivable, Originated, More Than Five Years	716,695	687,894
Financing Receivable, Revolving	138,168	117,847
Financing Receivable, Revolving, Converted to Term Loan	0	31
Total	4,473,911	3,831,325
Paycheck Protection Program [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	237,357
Financing Receivable, Originated, Year Two	9,042	38,984
Financing Receivable, Originated, Year Three	11,191	0
Financing Receivable, Originated, Year Four	0	0
Financing Receivable, Originated, Year Five	0	0
Financing Receivable, Originated, More Than Five Years	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	20,233	276,341
Loans to individuals [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	461,494	607,910
Financing Receivable, Originated, Year Two	589,175	646,331
Financing Receivable, Originated, Year Three	570,959	284,047
Financing Receivable, Originated, Year Four	252,180	161,425
Financing Receivable, Originated, Year Five	137,184	194,929
Financing Receivable, Originated, More Than Five Years	721,951	711,519
Financing Receivable, Revolving	931,247	962,235
Financing Receivable, Revolving, Converted to Term Loan	24,437	23,153
Total	3,688,627	3,591,549
Loans to individuals [Member] | Residential mortgage [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	280,356	387,706
Financing Receivable, Originated, Year Two	377,726	454,346
Financing Receivable, Originated, Year Three	405,027	84,540
Financing Receivable, Originated, Year Four	68,297	62,358
Financing Receivable, Originated, Year Five	44,550	68,925
Financing Receivable, Originated, More Than Five Years	299,035	318,373
Financing Receivable, Revolving	352,765	323,497
Financing Receivable, Revolving, Converted to Term Loan	24,080	22,425
Total	1,851,836	1,722,170
Loans to individuals [Member] | Residential mortgage [Member] | US Government Agency Insured Loans [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	699
Financing Receivable, Originated, Year Two	2,235	11,380
Financing Receivable, Originated, Year Three	9,175	21,909
Financing Receivable, Originated, Year Four	13,462	28,791
Financing Receivable, Originated, Year Five	21,482	33,377
Financing Receivable, Originated, More Than Five Years	216,112	258,017
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	262,466	354,173
Loans to individuals [Member] | Personal [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	181,138	219,505
Financing Receivable, Originated, Year Two	209,214	180,605
Financing Receivable, Originated, Year Three	156,757	177,598
Financing Receivable, Originated, Year Four	170,421	70,276
Financing Receivable, Originated, Year Five	71,152	92,627
Financing Receivable, Originated, More Than Five Years	206,804	135,129
Financing Receivable, Revolving	578,482	638,738
Financing Receivable, Revolving, Converted to Term Loan	357	728
Total	1,574,325	1,515,206
Performing [Member] | Commercial [Member] | Energy [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	165,547	252,133
Financing Receivable, Originated, Year Two	87,788	29,556
Financing Receivable, Originated, Year Three	31,140	15,914
Financing Receivable, Originated, Year Four	13,509	13,548
Financing Receivable, Originated, Year Five	6,153	4,741
Financing Receivable, Originated, More Than Five Years	5,091	6,765
Financing Receivable, Revolving	3,023,546	2,540,525
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	3,332,774	2,863,182
Performing [Member] | Commercial [Member] | Energy [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One		558
Financing Receivable, Originated, Year Two		771
Financing Receivable, Originated, Year Three		0
Financing Receivable, Originated, Year Four		0
Financing Receivable, Originated, Year Five		0
Financing Receivable, Originated, More Than Five Years		0
Financing Receivable, Revolving		750
Financing Receivable, Revolving, Converted to Term Loan		0
Total		2,079
Performing [Member] | Commercial [Member] | Energy [Member] | Accruing Substandard [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	10,650
Financing Receivable, Originated, Year Two	0	22,611
Financing Receivable, Originated, Year Three	0	1,185
Financing Receivable, Originated, Year Four	1,046	814
Financing Receivable, Originated, Year Five	482	0
Financing Receivable, Originated, More Than Five Years	688	716
Financing Receivable, Revolving	22,909	74,556
Financing Receivable, Revolving, Converted to Term Loan	9,525	0
Total	34,650	110,532
Performing [Member] | Commercial [Member] | Healthcare [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	734,327	563,800
Financing Receivable, Originated, Year Two	603,595	589,193
Financing Receivable, Originated, Year Three	515,393	516,558
Financing Receivable, Originated, Year Four	462,765	498,998
Financing Receivable, Originated, Year Five	464,154	319,096
Financing Receivable, Originated, More Than Five Years	748,312	688,136
Financing Receivable, Revolving	229,326	160,154
Financing Receivable, Revolving, Converted to Term Loan	22	26
Total	3,757,894	3,335,961
Performing [Member] | Commercial [Member] | Healthcare [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	6,835
Financing Receivable, Originated, Year Two	0	0
Financing Receivable, Originated, Year Three	0	15,583
Financing Receivable, Originated, Year Four	0	0
Financing Receivable, Originated, Year Five	0	11,135
Financing Receivable, Originated, More Than Five Years	20,452	0
Financing Receivable, Revolving	4	5
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	20,456	33,558
Performing [Member] | Commercial [Member] | Healthcare [Member] | Accruing Substandard [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	0	0
Financing Receivable, Originated, Year Three	0	27,135
Financing Receivable, Originated, Year Four	0	543
Financing Receivable, Originated, Year Five	0	0
Financing Receivable, Originated, More Than Five Years	6,835	1,981
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	6,835	29,659
Performing [Member] | Commercial [Member] | Services [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	600,374	696,149
Financing Receivable, Originated, Year Two	512,773	405,057
Financing Receivable, Originated, Year Three	300,490	289,375
Financing Receivable, Originated, Year Four	199,238	275,010
Financing Receivable, Originated, Year Five	161,527	225,404
Financing Receivable, Originated, More Than Five Years	754,204	795,029
Financing Receivable, Revolving	689,197	607,958
Financing Receivable, Revolving, Converted to Term Loan	683	375
Total	3,218,486	3,294,357
Performing [Member] | Commercial [Member] | Services [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	313	434
Financing Receivable, Originated, Year Two	396	405
Financing Receivable, Originated, Year Three	295	1,830
Financing Receivable, Originated, Year Four	769	1,047
Financing Receivable, Originated, Year Five	940	3,290
Financing Receivable, Originated, More Than Five Years	39	47
Financing Receivable, Revolving	999	17,210
Financing Receivable, Revolving, Converted to Term Loan	0	192
Total	3,751	24,455
Performing [Member] | Commercial [Member] | Services [Member] | Accruing Substandard [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	43
Financing Receivable, Originated, Year Two	0	530
Financing Receivable, Originated, Year Three	0	4,166
Financing Receivable, Originated, Year Four	2,636	10,714
Financing Receivable, Originated, Year Five	50	1,785
Financing Receivable, Originated, More Than Five Years	2,867	2,366
Financing Receivable, Revolving	25,666	11,607
Financing Receivable, Revolving, Converted to Term Loan	154	0
Total	31,373	31,211
Performing [Member] | Commercial [Member] | General business [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	579,329	584,438
Financing Receivable, Originated, Year Two	433,284	211,892
Financing Receivable, Originated, Year Three	205,796	264,462
Financing Receivable, Originated, Year Four	197,961	177,384
Financing Receivable, Originated, Year Five	143,995	168,977
Financing Receivable, Originated, More Than Five Years	306,131	215,014
Financing Receivable, Revolving	1,227,059	1,047,420
Financing Receivable, Revolving, Converted to Term Loan	1,883	2,284
Total	3,095,438	2,671,871
Performing [Member] | Commercial [Member] | General business [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	218
Financing Receivable, Originated, Year Two	878	223
Financing Receivable, Originated, Year Three	0	60
Financing Receivable, Originated, Year Four	0	1,435
Financing Receivable, Originated, Year Five	1,889	3,842
Financing Receivable, Originated, More Than Five Years	1,153	0
Financing Receivable, Revolving	8,314	5,875
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	12,234	11,653
Performing [Member] | Commercial [Member] | General business [Member] | Accruing Substandard [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	265
Financing Receivable, Originated, Year Two	2,024	1,066
Financing Receivable, Originated, Year Three	75	1,634
Financing Receivable, Originated, Year Four	4,269	7,697
Financing Receivable, Originated, Year Five	2,365	8,336
Financing Receivable, Originated, More Than Five Years	9,265	3,024
Financing Receivable, Revolving	88	1,821
Financing Receivable, Revolving, Converted to Term Loan	39	0
Total	18,125	23,843
Performing [Member] | Commercial real estate [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	854,039	717,400
Financing Receivable, Originated, Year Two	1,146,736	711,231
Financing Receivable, Originated, Year Three	616,509	871,283
Financing Receivable, Originated, Year Four	717,579	403,115
Financing Receivable, Originated, Year Five	276,614	279,058
Financing Receivable, Originated, More Than Five Years	686,543	664,684
Financing Receivable, Revolving	138,168	117,847
Financing Receivable, Revolving, Converted to Term Loan	0	31
Total	4,436,188	3,764,649
Performing [Member] | Commercial real estate [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	0	0
Financing Receivable, Originated, Year Three	0	0
Financing Receivable, Originated, Year Four	0	6,660
Financing Receivable, Originated, Year Five	0	10,898
Financing Receivable, Originated, More Than Five Years	26,652	9,244
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	26,652	26,802
Performing [Member] | Commercial real estate [Member] | Accruing Substandard [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	0	0
Financing Receivable, Originated, Year Three	0	0
Financing Receivable, Originated, Year Four	0	13,352
Financing Receivable, Originated, Year Five	0	4,480
Financing Receivable, Originated, More Than Five Years	3,100	7,780
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	3,100	25,612
Performing [Member] | Paycheck Protection Program [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	237,357
Financing Receivable, Originated, Year Two	9,042	38,984
Financing Receivable, Originated, Year Three	11,191	0
Financing Receivable, Originated, Year Four	0	0
Financing Receivable, Originated, Year Five	0	0
Financing Receivable, Originated, More Than Five Years	0	0
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	20,233	276,341
Performing [Member] | Loans to individuals [Member] | Residential mortgage [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	280,323	386,092
Financing Receivable, Originated, Year Two	376,110	452,537
Financing Receivable, Originated, Year Three	402,088	84,001
Financing Receivable, Originated, Year Four	67,906	60,390
Financing Receivable, Originated, Year Five	42,603	68,150
Financing Receivable, Originated, More Than Five Years	278,129	295,632
Financing Receivable, Revolving	350,036	320,638
Financing Receivable, Revolving, Converted to Term Loan	23,185	21,463
Total	1,820,380	1,688,903
Performing [Member] | Loans to individuals [Member] | Residential mortgage [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	59	0
Financing Receivable, Originated, Year Three	189	156
Financing Receivable, Originated, Year Four	16	0
Financing Receivable, Originated, Year Five	11	19
Financing Receivable, Originated, More Than Five Years	261	411
Financing Receivable, Revolving	629	282
Financing Receivable, Revolving, Converted to Term Loan	37	159
Total	1,202	1,027
Performing [Member] | Loans to individuals [Member] | Residential mortgage [Member] | Accruing Substandard [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	98
Financing Receivable, Originated, Year Two	0	0
Financing Receivable, Originated, Year Three	0	0
Financing Receivable, Originated, Year Four	17	0
Financing Receivable, Originated, Year Five	0	127
Financing Receivable, Originated, More Than Five Years	81	41
Financing Receivable, Revolving	51	400
Financing Receivable, Revolving, Converted to Term Loan	39	0
Total	188	666
Performing [Member] | Loans to individuals [Member] | Residential mortgage [Member] | US Government Agency Insured Loans [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	699
Financing Receivable, Originated, Year Two	2,235	11,380
Financing Receivable, Originated, Year Three	8,876	20,650
Financing Receivable, Originated, Year Four	11,995	27,970
Financing Receivable, Originated, Year Five	18,851	32,742
Financing Receivable, Originated, More Than Five Years	203,552	246,871
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	245,509	340,312
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Pass [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	181,102	218,960
Financing Receivable, Originated, Year Two	208,625	180,577
Financing Receivable, Originated, Year Three	156,718	177,389
Financing Receivable, Originated, Year Four	170,232	70,249
Financing Receivable, Originated, Year Five	71,133	92,592
Financing Receivable, Originated, More Than Five Years	206,780	135,041
Financing Receivable, Revolving	578,456	638,713
Financing Receivable, Revolving, Converted to Term Loan	357	728
Total	1,573,403	1,514,249
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Special Mention [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	26	0
Financing Receivable, Originated, Year Two	129	9
Financing Receivable, Originated, Year Three	25	34
Financing Receivable, Originated, Year Four	6	3
Financing Receivable, Originated, Year Five	12	0
Financing Receivable, Originated, More Than Five Years	4	47
Financing Receivable, Revolving	1	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	203	93
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Accruing Substandard [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	435
Financing Receivable, Originated, Year Two	423	5
Financing Receivable, Originated, Year Three	0	165
Financing Receivable, Originated, Year Four	160	0
Financing Receivable, Originated, Year Five	0	0
Financing Receivable, Originated, More Than Five Years	0	1
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	583	606
Nonperforming Financial Instruments [Member] | Commercial [Member] | Energy [Member] | Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	0	20,487
Financing Receivable, Originated, Year Three	0	0
Financing Receivable, Originated, Year Four	0	0
Financing Receivable, Originated, Year Five	0	0
Financing Receivable, Originated, More Than Five Years	292	714
Financing Receivable, Revolving	3,872	9,890
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	4,164	31,091
Nonperforming Financial Instruments [Member] | Commercial [Member] | Healthcare [Member] | Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	0	0
Financing Receivable, Originated, Year Three	0	0
Financing Receivable, Originated, Year Four	26,652	6,542
Financing Receivable, Originated, Year Five	6,488	0
Financing Receivable, Originated, More Than Five Years	8,298	8,711
Financing Receivable, Revolving	0	509
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	41,438	15,762
Nonperforming Financial Instruments [Member] | Commercial [Member] | Services [Member] | Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	2,172	0
Financing Receivable, Originated, Year Three	0	0
Financing Receivable, Originated, Year Four	0	230
Financing Receivable, Originated, Year Five	0	13,918
Financing Receivable, Originated, More Than Five Years	4,059	2,519
Financing Receivable, Revolving	21,084	503
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	27,315	17,170
Nonperforming Financial Instruments [Member] | Commercial [Member] | General business [Member] | Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	0	2,444
Financing Receivable, Originated, Year Three	1,073	4,562
Financing Receivable, Originated, Year Four	14	1,046
Financing Receivable, Originated, Year Five	953	762
Financing Receivable, Originated, More Than Five Years	7	518
Financing Receivable, Revolving	677	730
Financing Receivable, Revolving, Converted to Term Loan	29	19
Total	2,753	10,081
Nonperforming Financial Instruments [Member] | Commercial real estate [Member] | Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	0	0
Financing Receivable, Originated, Year Three	0	8,076
Financing Receivable, Originated, Year Four	7,571	0
Financing Receivable, Originated, Year Five	0	0
Financing Receivable, Originated, More Than Five Years	400	6,186
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	7,971	14,262
Nonperforming Financial Instruments [Member] | Loans to individuals [Member] | Residential mortgage [Member] | Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	33	1,516
Financing Receivable, Originated, Year Two	1,557	1,809
Financing Receivable, Originated, Year Three	2,750	383
Financing Receivable, Originated, Year Four	358	1,968
Financing Receivable, Originated, Year Five	1,936	629
Financing Receivable, Originated, More Than Five Years	20,564	22,289
Financing Receivable, Revolving	2,049	2,177
Financing Receivable, Revolving, Converted to Term Loan	819	803
Total	30,066	31,574
Nonperforming Financial Instruments [Member] | Loans to individuals [Member] | Residential mortgage [Member] | US Government Agency Insured Loans [Member] | Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	0	0
Financing Receivable, Originated, Year Two	0	0
Financing Receivable, Originated, Year Three	299	1,259
Financing Receivable, Originated, Year Four	1,467	821
Financing Receivable, Originated, Year Five	2,631	635
Financing Receivable, Originated, More Than Five Years	12,560	11,146
Financing Receivable, Revolving	0	0
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	16,957	13,861
Nonperforming Financial Instruments [Member] | Loans to individuals [Member] | Personal [Member] | Nonaccrual [Member]
Financing Receivable, Credit Quality Indicator Line Items [Abstract]
Financing Receivable, Originated, Year One	10	110
Financing Receivable, Originated, Year Two	37	14
Financing Receivable, Originated, Year Three	14	10
Financing Receivable, Originated, Year Four	23	24
Financing Receivable, Originated, Year Five	7	35
Financing Receivable, Originated, More Than Five Years	20	40
Financing Receivable, Revolving	25	25
Financing Receivable, Revolving, Converted to Term Loan	0	0
Total	$ 136	$ 258