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NOTE 10 - REGULATORY CAPITAL REQUIREMENTS (Details)
$ in Thousands
Sep. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Banking Regulation, Total Capital, Actual $ 1,416,933 $ 1,369,172
Total risk-based capital, actual, ratio 0.145 0.1419
Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum $ 781,962 $ 771,812
Banking Regulation, Total Risk-Based Capital Ratio, Capital Adequacy, Minimum 0.08 0.08
Total risk-based capital for capital adequacy purposes with capital conservation buffer, amount $ 1,026,325 $ 1,013,003
Total risk-based capital for capital adequacy purposes with capital conservation buffer, ratio 0.105 0.105
Banking Regulation, Total Risk-Based Capital, Well Capitalized, Minimum $ 977,452 $ 964,765
Banking Regulation, Total Risk-Based Capital Ratio, Well Capitalized, Minimum 0.10 0.10
Banking Regulation, Tier 1 Risk-Based Capital, Actual $ 1,125,733 $ 1,063,505
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual 0.1152 0.1102
Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum $ 586,471 $ 578,859
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Capital Adequacy, Minimum 0.06 0.06
Tier 1 risk-based capital for capital adequacy purposes with capital conservation buffer, amount $ 830,834 $ 820,050
Tier 1 risk-based capital for capital adequacy purposes with capital conservation buffer, ratio 0.085 0.085
Banking Regulation, Tier 1 Risk-Based Capital, Well Capitalized, Minimum $ 781,962 $ 771,812
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Well Capitalized, Minimum 0.08 0.08
Banking Regulation, Tier 1 Leverage Capital, Actual $ 1,125,733 $ 1,063,505
Banking Regulation, Tier 1 Leverage Capital Ratio, Actual 0.1196 0.1107
Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum $ 376,469 $ 384,419
Banking Regulation, Tier 1 Leverage Capital Ratio, Capital Adequacy, Minimum 0.04 0.04
Tier 1 leverage for capital adequacy purposes with capital conservation buffer, amount $ 376,469 $ 384,419
Tier 1 leverage for capital adequacy purposes with capital conservation buffer, ratio 0.04 0.04
Banking Regulation, Tier 1 Leverage Capital, Well Capitalized, Minimum $ 470,586 $ 480,523
Banking Regulation, Tier 1 Leverage Capital Ratio, Well Capitalized, Minimum 0.05 0.05
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Actual $ 1,076,643 $ 1,014,514
Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Actual 0.1101 0.1052
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Capital Adequacy, Minimum $ 439,853 $ 434,144
Common equity Tier 1 for capital adequacy purposes, ratio 4.50% 4.50%
Common equity Tier 1 for capital adequacy purposes with capital conservation buffer, amount $ 684,217 $ 675,335
Common equity Tier 1 for capital adequacy purposes with capital conservation buffer, ratio 7.00% 7.00%
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Well Capitalized, Minimum $ 635,344 $ 627,097
Common equity Tier 1, To be well capitalized under prompt corrective action provisions, ratio 6.50% 6.50%
QCBT    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Banking Regulation, Total Capital, Actual $ 344,443 $ 342,214
Total risk-based capital, actual, ratio 0.1478 0.1433
Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum $ 186,474 $ 191,071
Banking Regulation, Total Risk-Based Capital Ratio, Capital Adequacy, Minimum 0.08 0.08
Total risk-based capital for capital adequacy purposes with capital conservation buffer, amount $ 244,747 $ 250,780
Total risk-based capital for capital adequacy purposes with capital conservation buffer, ratio 0.105 0.105
Banking Regulation, Total Risk-Based Capital, Well Capitalized, Minimum $ 233,092 $ 238,838
Banking Regulation, Total Risk-Based Capital Ratio, Well Capitalized, Minimum 0.10 0.10
Banking Regulation, Tier 1 Risk-Based Capital, Actual $ 319,546 $ 313,533
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual 0.1371 0.1313
Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum $ 139,855 $ 143,303
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Capital Adequacy, Minimum 0.06 0.06
Tier 1 risk-based capital for capital adequacy purposes with capital conservation buffer, amount $ 198,128 $ 203,013
Tier 1 risk-based capital for capital adequacy purposes with capital conservation buffer, ratio 0.085 0.085
Banking Regulation, Tier 1 Risk-Based Capital, Well Capitalized, Minimum $ 186,474 $ 191,071
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Well Capitalized, Minimum 0.08 0.08
Banking Regulation, Tier 1 Leverage Capital, Actual $ 319,546 $ 313,533
Banking Regulation, Tier 1 Leverage Capital Ratio, Actual 0.1144 0.1065
Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum $ 111,702 $ 117,711
Banking Regulation, Tier 1 Leverage Capital Ratio, Capital Adequacy, Minimum 0.04 0.04
Tier 1 leverage for capital adequacy purposes with capital conservation buffer, amount $ 111,702 $ 117,711
Tier 1 leverage for capital adequacy purposes with capital conservation buffer, ratio 0.04 0.04
Banking Regulation, Tier 1 Leverage Capital, Well Capitalized, Minimum $ 139,628 $ 147,138
Banking Regulation, Tier 1 Leverage Capital Ratio, Well Capitalized, Minimum 0.05 0.05
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Actual $ 319,546 $ 313,533
Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Actual 0.1371 0.1313
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Capital Adequacy, Minimum $ 104,891 $ 107,477
Common equity Tier 1 for capital adequacy purposes, ratio 4.50% 4.50%
Common equity Tier 1 for capital adequacy purposes with capital conservation buffer, amount $ 163,164 $ 167,187
Common equity Tier 1 for capital adequacy purposes with capital conservation buffer, ratio 7.00% 7.00%
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Well Capitalized, Minimum $ 151,510 $ 155,245
Common equity Tier 1, To be well capitalized under prompt corrective action provisions, ratio 6.50% 6.50%
CRBT    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Banking Regulation, Total Capital, Actual $ 513,862 $ 495,107
Total risk-based capital, actual, ratio 0.1463 0.1461
Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum $ 280,949 $ 271,051
Banking Regulation, Total Risk-Based Capital Ratio, Capital Adequacy, Minimum 0.08 0.08
Total risk-based capital for capital adequacy purposes with capital conservation buffer, amount $ 368,746 $ 355,754
Total risk-based capital for capital adequacy purposes with capital conservation buffer, ratio 0.105 0.105
Banking Regulation, Total Risk-Based Capital, Well Capitalized, Minimum $ 351,187 $ 338,814
Banking Regulation, Total Risk-Based Capital Ratio, Well Capitalized, Minimum 0.10 0.10
Banking Regulation, Tier 1 Risk-Based Capital, Actual $ 487,339 $ 466,349
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual 0.1388 0.1376
Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum $ 210,712 $ 203,288
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Capital Adequacy, Minimum 0.06 0.06
Tier 1 risk-based capital for capital adequacy purposes with capital conservation buffer, amount $ 298,509 $ 287,992
Tier 1 risk-based capital for capital adequacy purposes with capital conservation buffer, ratio 0.085 0.085
Banking Regulation, Tier 1 Risk-Based Capital, Well Capitalized, Minimum $ 280,949 $ 271,051
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Well Capitalized, Minimum 0.08 0.08
Banking Regulation, Tier 1 Leverage Capital, Actual $ 487,339 $ 466,349
Banking Regulation, Tier 1 Leverage Capital Ratio, Actual 0.169 0.1622
Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum $ 115,370 $ 115,000
Banking Regulation, Tier 1 Leverage Capital Ratio, Capital Adequacy, Minimum 0.04 0.04
Tier 1 leverage for capital adequacy purposes with capital conservation buffer, amount $ 115,370 $ 115,000
Tier 1 leverage for capital adequacy purposes with capital conservation buffer, ratio 0.04 0.04
Banking Regulation, Tier 1 Leverage Capital, Well Capitalized, Minimum $ 144,212 $ 143,751
Banking Regulation, Tier 1 Leverage Capital Ratio, Well Capitalized, Minimum 0.05 0.05
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Actual $ 487,339 $ 466,349
Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Actual 0.1388 0.1376
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Capital Adequacy, Minimum $ 158,034 $ 152,466
Common equity Tier 1 for capital adequacy purposes, ratio 4.50% 4.50%
Common equity Tier 1 for capital adequacy purposes with capital conservation buffer, amount $ 245,831 $ 237,170
Common equity Tier 1 for capital adequacy purposes with capital conservation buffer, ratio 7.00% 7.00%
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Well Capitalized, Minimum $ 228,271 $ 220,229
Common equity Tier 1, To be well capitalized under prompt corrective action provisions, ratio 6.50% 6.50%
CSB    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Banking Regulation, Total Capital, Actual $ 224,855 $ 212,148
Total risk-based capital, actual, ratio 0.1282 0.1265
Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum $ 140,330 $ 134,206
Banking Regulation, Total Risk-Based Capital Ratio, Capital Adequacy, Minimum 0.08 0.08
Total risk-based capital for capital adequacy purposes with capital conservation buffer, amount $ 184,184 $ 176,146
Total risk-based capital for capital adequacy purposes with capital conservation buffer, ratio 0.105 0.105
Banking Regulation, Total Risk-Based Capital, Well Capitalized, Minimum $ 175,413 $ 167,758
Banking Regulation, Total Risk-Based Capital Ratio, Well Capitalized, Minimum 0.10 0.10
Banking Regulation, Tier 1 Risk-Based Capital, Actual $ 209,445 $ 197,171
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual 0.1194 0.1175
Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum $ 105,248 $ 100,655
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Capital Adequacy, Minimum 0.06 0.06
Tier 1 risk-based capital for capital adequacy purposes with capital conservation buffer, amount $ 149,101 $ 142,594
Tier 1 risk-based capital for capital adequacy purposes with capital conservation buffer, ratio 0.085 0.085
Banking Regulation, Tier 1 Risk-Based Capital, Well Capitalized, Minimum $ 140,330 $ 134,206
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Well Capitalized, Minimum 0.08 0.08
Banking Regulation, Tier 1 Leverage Capital, Actual $ 209,445 $ 197,171
Banking Regulation, Tier 1 Leverage Capital Ratio, Actual 0.1195 0.1142
Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum $ 70,123 $ 69,072
Banking Regulation, Tier 1 Leverage Capital Ratio, Capital Adequacy, Minimum 0.04 0.04
Tier 1 leverage for capital adequacy purposes with capital conservation buffer, amount $ 70,123 $ 69,072
Tier 1 leverage for capital adequacy purposes with capital conservation buffer, ratio 0.04 0.04
Banking Regulation, Tier 1 Leverage Capital, Well Capitalized, Minimum $ 87,654 $ 86,340
Banking Regulation, Tier 1 Leverage Capital Ratio, Well Capitalized, Minimum 0.05 0.05
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Actual $ 209,445 $ 197,171
Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Actual 0.1194 0.1175
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Capital Adequacy, Minimum $ 78,936 $ 75,491
Common equity Tier 1 for capital adequacy purposes, ratio 4.50% 4.50%
Common equity Tier 1 for capital adequacy purposes with capital conservation buffer, amount $ 122,789 $ 117,431
Common equity Tier 1 for capital adequacy purposes with capital conservation buffer, ratio 7.00% 7.00%
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Well Capitalized, Minimum $ 114,018 $ 109,043
Common equity Tier 1, To be well capitalized under prompt corrective action provisions, ratio 6.50% 6.50%
Guaranty Bank    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Banking Regulation, Total Capital, Actual $ 315,661 $ 308,357
Total risk-based capital, actual, ratio 0.1442 0.1413
Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum $ 175,107 $ 174,598
Banking Regulation, Total Risk-Based Capital Ratio, Capital Adequacy, Minimum 0.08 0.08
Total risk-based capital for capital adequacy purposes with capital conservation buffer, amount $ 229,828 $ 229,159
Total risk-based capital for capital adequacy purposes with capital conservation buffer, ratio 0.105 0.105
Banking Regulation, Total Risk-Based Capital, Well Capitalized, Minimum $ 218,884 $ 218,247
Banking Regulation, Total Risk-Based Capital Ratio, Well Capitalized, Minimum 0.10 0.10
Banking Regulation, Tier 1 Risk-Based Capital, Actual $ 288,281 $ 283,230
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual 0.1317 0.1298
Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum $ 131,330 $ 130,948
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Capital Adequacy, Minimum 0.06 0.06
Tier 1 risk-based capital for capital adequacy purposes with capital conservation buffer, amount $ 186,051 $ 185,510
Tier 1 risk-based capital for capital adequacy purposes with capital conservation buffer, ratio 0.085 0.085
Banking Regulation, Tier 1 Risk-Based Capital, Well Capitalized, Minimum $ 175,107 $ 174,598
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Well Capitalized, Minimum 0.08 0.08
Banking Regulation, Tier 1 Leverage Capital, Actual $ 288,281 $ 283,230
Banking Regulation, Tier 1 Leverage Capital Ratio, Actual 0.1263 0.1203
Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum $ 91,325 $ 94,143
Banking Regulation, Tier 1 Leverage Capital Ratio, Capital Adequacy, Minimum 0.04 0.04
Tier 1 leverage for capital adequacy purposes with capital conservation buffer, amount $ 91,325 $ 94,143
Tier 1 leverage for capital adequacy purposes with capital conservation buffer, ratio 0.04 0.04
Banking Regulation, Tier 1 Leverage Capital, Well Capitalized, Minimum $ 114,156 $ 117,679
Banking Regulation, Tier 1 Leverage Capital Ratio, Well Capitalized, Minimum 0.05 0.05
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Actual $ 288,281 $ 283,230
Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Actual 0.1317 0.1298
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Capital Adequacy, Minimum $ 98,498 $ 98,211
Common equity Tier 1 for capital adequacy purposes, ratio 4.50% 4.50%
Common equity Tier 1 for capital adequacy purposes with capital conservation buffer, amount $ 153,219 $ 152,773
Common equity Tier 1 for capital adequacy purposes with capital conservation buffer, ratio 7.00% 7.00%
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Well Capitalized, Minimum $ 142,275 $ 141,861
Common equity Tier 1, To be well capitalized under prompt corrective action provisions, ratio 6.50% 6.50%