LOANS - Amortized Cost Basis of Loans by Credit Quality Indicator and Class of Loans Based on the Most Recent Analysis Performed (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Financing Receivable, Recorded Investment [Line Items]
Year one	$ 517,093	$ 822,076
Year two	780,874	553,259
Year three	482,304	342,842
Year four	296,901	336,454
Year five	277,971	234,870
More than five years	663,924	566,100
Revolving Loans	105,856	103,952
Loans held for investment	3,124,924	2,959,553
Commercial, financial and agriculture
Financing Receivable, Recorded Investment [Line Items]
Year one	78,126	152,798
Year two	118,472	60,361
Year three	50,816	54,949
Year four	46,808	54,262
Year five	46,632	22,924
More than five years	61,698	52,044
Revolving Loans	66	178
Loans held for investment	402,619	397,516
Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Year one	288,699	407,514
Year two	424,204	318,736
Year three	288,874	211,592
Year four	189,995	210,166
Year five	172,284	155,827
More than five years	446,149	379,863
Revolving Loans	0	0
Loans held for investment	1,810,204	1,683,698
Consumer real estate
Financing Receivable, Recorded Investment [Line Items]
Year one	139,292	243,784
Year two	225,023	164,891
Year three	135,978	72,076
Year four	57,201	70,376
Year five	58,053	55,022
More than five years	154,215	132,428
Revolving Loans	101,287	100,077
Loans held for investment	871,051	838,654
Consumer installment
Financing Receivable, Recorded Investment [Line Items]
Year one	10,976	17,980
Year two	13,175	9,271
Year three	6,636	4,225
Year four	2,897	1,650
Year five	1,001	1,097
More than five years	1,863	1,765
Revolving Loans	4,502	3,697
Loans held for investment	41,050	39,685
Pass
Financing Receivable, Recorded Investment [Line Items]
Year one	516,984	816,402
Year two	774,123	546,998
Year three	476,613	335,368
Year four	291,654	294,516
Year five	252,050	209,393
More than five years	603,170	499,357
Revolving Loans	104,438	102,319
Loans held for investment	3,019,031	2,804,353
Pass | Commercial, financial and agriculture
Financing Receivable, Recorded Investment [Line Items]
Year one	78,092	152,798
Year two	118,432	60,106
Year three	50,598	52,802
Year four	46,425	47,988
Year five	46,582	22,083
More than five years	60,811	43,773
Revolving Loans	66	178
Loans held for investment	401,006	379,728
Pass | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Year one	288,699	402,284
Year two	417,922	313,288
Year three	283,843	207,879
Year four	185,986	177,943
Year five	149,012	134,234
More than five years	396,464	332,588
Revolving Loans	0	0
Loans held for investment	1,721,925	1,568,216
Pass | Consumer real estate
Financing Receivable, Recorded Investment [Line Items]
Year one	139,239	243,340
Year two	224,599	164,359
Year three	135,559	70,465
Year four	56,347	66,940
Year five	55,459	51,988
More than five years	144,043	121,238
Revolving Loans	99,869	98,444
Loans held for investment	855,114	816,774
Pass | Consumer installment
Financing Receivable, Recorded Investment [Line Items]
Year one	10,954	17,980
Year two	13,170	9,245
Year three	6,613	4,222
Year four	2,895	1,645
Year five	998	1,088
More than five years	1,853	1,758
Revolving Loans	4,502	3,697
Loans held for investment	40,986	39,635
Special mention
Financing Receivable, Recorded Investment [Line Items]
Year one	0	1,326
Year two	1,309	2,514
Year three	2,488	2,862
Year four	2,261	15,192
Year five	6,937	5,007
More than five years	17,333	17,497
Revolving Loans	0	0
Loans held for investment	30,328	44,398
Special mention | Commercial, financial and agriculture
Financing Receivable, Recorded Investment [Line Items]
Year one	0	0
Year two	0	255
Year three	218	749
Year four	336	90
Year five	0	481
More than five years	416	29
Revolving Loans	0	0
Loans held for investment	970	1,604
Special mention | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Year one	0	1,326
Year two	1,309	2,259
Year three	2,269	1,782
Year four	1,725	15,076
Year five	6,911	2,779
More than five years	13,889	15,519
Revolving Loans	0	0
Loans held for investment	26,104	38,741
Special mention | Consumer real estate
Financing Receivable, Recorded Investment [Line Items]
Year one	0	0
Year two	0	0
Year three	0	331
Year four	201	26
Year five	26	1,746
More than five years	3,028	1,949
Revolving Loans	0	0
Loans held for investment	3,254	4,052
Special mention | Consumer installment
Financing Receivable, Recorded Investment [Line Items]
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	0
Year five	0	1
More than five years	0	0
Revolving Loans	0	0
Loans held for investment	0	1
Substandard
Financing Receivable, Recorded Investment [Line Items]
Year one	109	4,348
Year two	5,441	3,747
Year three	3,204	4,612
Year four	2,986	26,746
Year five	18,984	20,470
More than five years	42,746	49,246
Revolving Loans	1,418	1,633
Loans held for investment	74,890	110,802
Substandard | Commercial, financial and agriculture
Financing Receivable, Recorded Investment [Line Items]
Year one	35	0
Year two	40	0
Year three	0	1,398
Year four	47	6,184
Year five	50	360
More than five years	471	8,242
Revolving Loans	0	0
Loans held for investment	643	16,184
Substandard | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Year one	0	3,904
Year two	4,973	3,189
Year three	2,761	1,931
Year four	2,284	17,147
Year five	16,362	18,814
More than five years	35,121	31,756
Revolving Loans	0	0
Loans held for investment	61,501	76,741
Substandard | Consumer real estate
Financing Receivable, Recorded Investment [Line Items]
Year one	53	444
Year two	424	532
Year three	420	1,280
Year four	653	3,410
Year five	2,569	1,288
More than five years	7,145	9,241
Revolving Loans	1,418	1,633
Loans held for investment	12,683	17,828
Substandard | Consumer installment
Financing Receivable, Recorded Investment [Line Items]
Year one	22	0
Year two	4	26
Year three	23	3
Year four	2	5
Year five	3	8
More than five years	9	7
Revolving Loans	0	0
Loans held for investment	63	49
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	0
Year five	0	0
More than five years	675	0
Revolving Loans	0	0
Loans held for investment	675	0
Doubtful | Commercial, financial and agriculture
Financing Receivable, Recorded Investment [Line Items]
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	0
Year five	0	0
More than five years	0	0
Revolving Loans	0	0
Loans held for investment	0	0
Doubtful | Commercial real estate
Financing Receivable, Recorded Investment [Line Items]
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	0
Year five	0	0
More than five years	675	0
Revolving Loans	0	0
Loans held for investment	675	0
Doubtful | Consumer real estate
Financing Receivable, Recorded Investment [Line Items]
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	0
Year five	0	0
More than five years	0	0
Revolving Loans	0	0
Loans held for investment	0	0
Doubtful | Consumer installment
Financing Receivable, Recorded Investment [Line Items]
Year one	0	0
Year two	0	0
Year three	0	0
Year four	0	0
Year five	0	0
More than five years	0	0
Revolving Loans	0	0
Loans held for investment	$ 0	$ 0