Quarterly report pursuant to Section 13 or 15(d)

LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Loan Portfolio Aging) (Details)

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LOANS HELD FOR INVESTMENT AND ALLOWANCE FOR CREDIT LOSSES (Loan Portfolio Aging) (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Nonaccrual loans $ 5,362 $ 5,871
Total Loans 2,057,727 2,006,426
Total Past Due [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 2,622 4,594
Total Current [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 2,049,743 1,995,961
30-59 DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 2,159 2,743
60-89 DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 463 1,851
90 +DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 0 0
Commercial, Financial and Agricultural [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 413,819  
Nonaccrual loans 150 161
Total Loans 413,819 393,930
Commercial, Financial and Agricultural [Member] | Total Past Due [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 113 318
Commercial, Financial and Agricultural [Member] | Total Current [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 413,556 393,451
Commercial, Financial and Agricultural [Member] | 30-59 DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 55 194
Commercial, Financial and Agricultural [Member] | 60-89 DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 58 124
Commercial, Financial and Agricultural [Member] | 90 +DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 0 0
Real Estate - Construction [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 138,104  
Nonaccrual loans 179 179
Total Loans 138,104 135,831
Real Estate - Construction [Member] | Total Past Due [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 565 717
Real Estate - Construction [Member] | Total Current [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 137,360 134,935
Real Estate - Construction [Member] | 30-59 DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 565 0
Real Estate - Construction [Member] | 60-89 DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 0 717
Real Estate - Construction [Member] | 90 +DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 0 0
Real Estate - Commercial Mortgage [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 669,158  
Nonaccrual loans 1,256 1,412
Total Loans 669,158 648,393
Real Estate - Commercial Mortgage [Member] | Total Past Due [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 183 293
Real Estate - Commercial Mortgage [Member] | Total Current [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 667,719 646,688
Real Estate - Commercial Mortgage [Member] | 30-59 DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 183 293
Real Estate - Commercial Mortgage [Member] | 60-89 DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 0 0
Real Estate - Commercial Mortgage [Member] | 90 +DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 0 0
Real Estate - Residential [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 365,931  
Nonaccrual loans 3,150 3,130
Total Loans 365,931 352,543
Real Estate - Residential [Member] | Total Past Due [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 515 905
Real Estate - Residential [Member] | Total Current [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 362,266 348,508
Real Estate - Residential [Member] | 30-59 DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 289 375
Real Estate - Residential [Member] | 60-89 DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 226 530
Real Estate - Residential [Member] | 90 +DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 0 0
Real Estate - Home Equity [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 202,099  
Nonaccrual loans 462 695
Total Loans 202,099 205,479
Real Estate - Home Equity [Member] | Total Past Due [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 355 463
Real Estate - Home Equity [Member] | Total Current [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 201,282 204,321
Real Estate - Home Equity [Member] | 30-59 DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 355 325
Real Estate - Home Equity [Member] | 60-89 DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 0 138
Real Estate - Home Equity [Member] | 90 +DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 0 0
Consumer [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 268,616  
Nonaccrual loans 165 294
Total Loans 268,616 270,250
Consumer [Member] | Total Past Due [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 891 1,898
Consumer [Member] | Total Current [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 267,560 268,058
Consumer [Member] | 30-59 DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 712 1,556
Consumer [Member] | 60-89 DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable 179 342
Consumer [Member] | 90 +DPD [Member]    
Financing Receivable, Recorded Investment, Past Due [Line Items]    
Financing Receivable $ 0 $ 0