Allowance for Credit Losses - Recorded Investment of Commercial Loan Portfolio by Risk Category (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Analysis of risk category of loans by class of loans
Current year	$ 92,262		$ 255,765
Prior year	243,419		458,326
Two years before current year	458,324		361,138
Three years before current year	362,485		210,908
Four years before current year	197,887		98,537
Prior	490,654		446,015
Revolving Loans	172,959		177,744
Total loans	2,017,990		2,008,433
Current period gross charge offs, Total	3,192	$ 4,376
Commercial & Industrial | Commercial
Analysis of risk category of loans by class of loans
Current year	39,796		87,975
Prior year	61,399		137,829
Two years before current year	122,559		125,525
Three years before current year	96,435		52,299
Four years before current year	42,455		46,513
Prior	113,677		107,185
Revolving Loans	91,954		92,198
Total loans	568,275		649,524
Current period gross charge offs, 2024			8
Current period gross charge offs, 2023			72
Current period gross charge offs, 2022			40
Current period gross charge offs, 2021			78
Current period gross charge offs, 2020	5		24
Current period gross charge offs, Prior	22		49
Current period gross charge offs, Total	27		271
Farmland | Commercial
Analysis of risk category of loans by class of loans
Current year	4,521		21,232
Prior year	20,668		16,025
Two years before current year	15,738		20,798
Three years before current year	19,870		8,351
Four years before current year	7,951		9,462
Prior	60,781		54,451
Revolving Loans	214		287
Total loans	129,743		130,606
Non Farm, Non Residential | Commercial
Analysis of risk category of loans by class of loans
Current year	38,057		73,842
Prior year	79,130		124,051
Two years before current year	137,381		70,472
Three years before current year	101,204		24,643
Four years before current year	23,539		23,874
Prior	147,794		113,173
Revolving Loans	5,983		7,606
Total loans	533,088		437,661
Agriculture | Commercial
Analysis of risk category of loans by class of loans
Current year	3,737		10,764
Prior year	9,424		11,491
Two years before current year	10,705		6,645
Three years before current year	5,974		6,161
Four years before current year	5,705		7,517
Prior	24,239		27,350
Revolving Loans	65,212		68,094
Total loans	124,996		138,022
All Other Commercial | Commercial
Analysis of risk category of loans by class of loans
Current year	6,151		27,401
Prior year	30,204		106,085
Two years before current year	105,113		104,323
Three years before current year	106,125		96,507
Four years before current year	95,494		4,774
Prior	108,495		113,446
Revolving Loans	9,170		9,177
Total loans	460,752		461,713
Current period gross charge offs, 2024	104		675
Current period gross charge offs, 2023	100
Current period gross charge offs, 2020			20
Current period gross charge offs, Total	204		695
Multifamily | Residential
Analysis of risk category of loans by class of loans
Current year			34,551
Prior year	42,594		62,845
Two years before current year	66,828		33,375
Three years before current year	32,877		22,947
Four years before current year	22,743		6,397
Prior	35,668		30,410
Revolving Loans	426		382
Total loans	201,136		190,907
Pass
Analysis of risk category of loans by class of loans
Current year	88,627		248,561
Prior year	226,257		450,056
Two years before current year	449,682		346,276
Three years before current year	340,436		202,457
Four years before current year	190,448		94,211
Prior	461,360		421,033
Revolving Loans	167,117		163,479
Total loans	1,923,927		1,926,073
Pass | Commercial & Industrial | Commercial
Analysis of risk category of loans by class of loans
Current year	36,823		80,873
Prior year	44,296		131,522
Two years before current year	116,256		112,811
Three years before current year	76,514		47,445
Four years before current year	38,558		44,257
Prior	105,365		100,872
Revolving Loans	89,655		81,551
Total loans	507,467		599,331
Pass | Farmland | Commercial
Analysis of risk category of loans by class of loans
Current year	4,521		21,232
Prior year	20,668		16,025
Two years before current year	15,738		20,794
Three years before current year	19,867		8,310
Four years before current year	7,911		8,790
Prior	57,576		52,357
Revolving Loans	214		287
Total loans	126,495		127,795
Pass | Non Farm, Non Residential | Commercial
Analysis of risk category of loans by class of loans
Current year	37,395		73,740
Prior year	79,071		123,319
Two years before current year	136,474		69,477
Three years before current year	100,219		23,965
Four years before current year	22,866		22,550
Prior	140,335		106,752
Revolving Loans	5,983		7,606
Total loans	522,343		427,409
Pass | Agriculture | Commercial
Analysis of risk category of loans by class of loans
Current year	3,737		10,764
Prior year	9,424		11,299
Two years before current year	10,522		6,614
Three years before current year	5,945		6,118
Four years before current year	5,669		7,443
Prior	22,708		25,678
Revolving Loans	61,669		64,476
Total loans	119,674		132,392
Pass | All Other Commercial | Commercial
Analysis of risk category of loans by class of loans
Current year	6,151		27,401
Prior year	30,204		105,046
Two years before current year	104,099		104,307
Three years before current year	106,110		94,029
Four years before current year	93,055		4,774
Prior	107,236		112,159
Revolving Loans	9,170		9,177
Total loans	456,025		456,893
Pass | Multifamily | Residential
Analysis of risk category of loans by class of loans
Current year			34,551
Prior year	42,594		62,845
Two years before current year	66,593		32,273
Three years before current year	31,781		22,590
Four years before current year	22,389		6,397
Prior	28,140		23,215
Revolving Loans	426		382
Total loans	191,923		182,253
Special Mention
Analysis of risk category of loans by class of loans
Current year			6
Prior year	14,605		1,039
Two years before current year	1,801		11,024
Three years before current year	10,768		6,285
Four years before current year	6,190		1,531
Prior	10,981		9,582
Revolving Loans	5,842		6,333
Total loans	50,187		35,800
Special Mention | Commercial & Industrial | Commercial
Analysis of risk category of loans by class of loans
Current year			6
Prior year	14,605		221
Two years before current year	762		10,025
Three years before current year	9,780		3,442
Four years before current year	3,392		323
Prior	1,205		866
Revolving Loans	2,299		2,715
Total loans	32,043		17,598
Special Mention | Farmland | Commercial
Analysis of risk category of loans by class of loans
Two years before current year			4
Three years before current year	3
Four years before current year			363
Prior	1,062		710
Total loans	1,065		1,077
Special Mention | Non Farm, Non Residential | Commercial
Analysis of risk category of loans by class of loans
Prior year			732
Two years before current year	718		995
Three years before current year	985
Four years before current year			845
Prior	835
Total loans	2,538		2,572
Special Mention | Agriculture | Commercial
Analysis of risk category of loans by class of loans
Prior year			86
Two years before current year	86
Three years before current year			8
Four years before current year	5
Prior	602		605
Revolving Loans	3,543		3,618
Total loans	4,236		4,317
Special Mention | All Other Commercial | Commercial
Analysis of risk category of loans by class of loans
Three years before current year			2,478
Four years before current year	2,439
Prior	812		830
Total loans	3,251		3,308
Special Mention | Multifamily | Residential
Analysis of risk category of loans by class of loans
Two years before current year	235
Three years before current year			357
Four years before current year	354
Prior	6,465		6,571
Total loans	7,054		6,928
Substandard
Analysis of risk category of loans by class of loans
Current year	3,093		3,722
Prior year	1,294		5,816
Two years before current year	5,607		1,858
Three years before current year	9,537		1,022
Four years before current year	185		2,627
Prior	16,907		14,520
Revolving Loans			7,932
Total loans	36,623		37,497
Substandard | Commercial & Industrial | Commercial
Analysis of risk category of loans by class of loans
Current year	2,431		3,620
Prior year	1,235		4,734
Two years before current year	4,360		1,842
Three years before current year	9,522		981
Four years before current year	145		1,789
Prior	6,941		5,354
Revolving Loans			7,932
Total loans	24,634		26,252
Substandard | Farmland | Commercial
Analysis of risk category of loans by class of loans
Three years before current year			41
Four years before current year	40		309
Prior	2,129		1,370
Total loans	2,169		1,720
Substandard | Non Farm, Non Residential | Commercial
Analysis of risk category of loans by class of loans
Current year	662		102
Prior year	59
Two years before current year	189
Four years before current year			479
Prior	6,560		6,356
Total loans	7,470		6,937
Substandard | Agriculture | Commercial
Analysis of risk category of loans by class of loans
Prior year			55
Two years before current year	55
Four years before current year			50
Prior	904		1,067
Total loans	959		1,172
Substandard | All Other Commercial | Commercial
Analysis of risk category of loans by class of loans
Prior year			1,027
Two years before current year	1,003		16
Three years before current year	15
Total loans	1,018		1,043
Substandard | Multifamily | Residential
Analysis of risk category of loans by class of loans
Prior	373		373
Total loans	373		373
Not Rated
Analysis of risk category of loans by class of loans
Current year	542		3,476
Prior year	1,263		1,415
Two years before current year	1,234		1,980
Three years before current year	1,744		1,144
Four years before current year	1,064		168
Prior	1,406		880
Total loans	7,253		9,063
Not Rated | Commercial & Industrial | Commercial
Analysis of risk category of loans by class of loans
Current year	542		3,476
Prior year	1,263		1,352
Two years before current year	1,181		847
Three years before current year	619		431
Four years before current year	360		144
Prior	166		93
Total loans	4,131		6,343
Not Rated | Farmland | Commercial
Analysis of risk category of loans by class of loans
Prior	14		14
Total loans	14		14
Not Rated | Non Farm, Non Residential | Commercial
Analysis of risk category of loans by class of loans
Three years before current year			678
Four years before current year	673
Prior	64		65
Total loans	737		743
Not Rated | Agriculture | Commercial
Analysis of risk category of loans by class of loans
Prior year			51
Two years before current year	42		31
Three years before current year	29		35
Four years before current year	31		24
Prior	25
Total loans	127		141
Not Rated | All Other Commercial | Commercial
Analysis of risk category of loans by class of loans
Prior year			12
Two years before current year	11
Prior	447		457
Total loans	458		469
Not Rated | Multifamily | Residential
Analysis of risk category of loans by class of loans
Two years before current year			1,102
Three years before current year	1,096
Prior	690		251
Total loans	$ 1,786		$ 1,353