NOTE 10 - REGULATORY CAPITAL REQUIREMENTS (Details) $ in Thousands	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Banking Regulation, Total Capital, Actual	$ 1,363,858	$ 1,369,172
Total risk-based capital, actual, ratio	0.14	0.1419
Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum	$ 779,180	$ 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	$ 1,022,674	$ 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, To be well capitalized under prompt corrective action provisions , Minimum	$ 973,976	$ 964,765
Banking Regulation, Total Risk-Based Capital Ratio, To be well capitalized under prompt corrective action provisions, Minimum	0.10	0.10
Banking Regulation, Tier 1 Risk-Based Capital, Actual	$ 1,075,998	$ 1,063,505
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual	0.1105	0.1102
Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum	$ 584,385	$ 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	$ 827,879	$ 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, To be well capitalized under prompt corrective action provisions, Minimum	$ 779,180	$ 771,812
Banking Regulation, Tier 1 Risk-Based Capital Ratio, To be well capitalized under prompt corrective action provisions, Minimum	0.08	0.08
Banking Regulation, Tier 1 Leverage Capital, Actual	$ 1,075,998	$ 1,063,505
Banking Regulation, Tier 1 Leverage Capital Ratio, Actual	0.1144	0.1107
Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum	$ 376,080	$ 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	$ 376,080	$ 384,419
Tier 1 leverage for capital adequacy purposes with capital conservation buffer, ratio	0.04	0.04
Banking Regulation, Tier 1 Leverage Capital, To be well capitalized under prompt corrective action provisions, Minimum	$ 470,100	$ 480,523
Banking Regulation, Tier 1 Leverage Capital Ratio, To be well capitalized under prompt corrective action provisions, Minimum	0.05	0.05
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Actual	$ 1,026,974	$ 1,014,514
Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Actual	0.1054	0.1052
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Capital Adequacy, Minimum	$ 438,289	$ 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	$ 681,783	$ 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, To be well capitalized under prompt corrective action provisions, Minimum	$ 633,084	$ 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	$ 344,898	$ 342,214
Total risk-based capital, actual, ratio	0.1397	0.1433
Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum	$ 197,463	$ 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	$ 259,170	$ 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, To be well capitalized under prompt corrective action provisions , Minimum	$ 246,829	$ 238,838
Banking Regulation, Total Risk-Based Capital Ratio, To be well capitalized under prompt corrective action provisions, Minimum	0.10	0.10
Banking Regulation, Tier 1 Risk-Based Capital, Actual	$ 318,206	$ 313,533
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual	0.1289	0.1313
Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum	$ 148,097	$ 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	$ 209,804	$ 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, To be well capitalized under prompt corrective action provisions, Minimum	$ 197,463	$ 191,071
Banking Regulation, Tier 1 Risk-Based Capital Ratio, To be well capitalized under prompt corrective action provisions, Minimum	0.08	0.08
Banking Regulation, Tier 1 Leverage Capital, Actual	$ 318,206	$ 313,533
Banking Regulation, Tier 1 Leverage Capital Ratio, Actual	0.1094	0.1065
Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum	$ 116,303	$ 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	$ 116,303	$ 117,711
Tier 1 leverage for capital adequacy purposes with capital conservation buffer, ratio	0.04	0.04
Banking Regulation, Tier 1 Leverage Capital, To be well capitalized under prompt corrective action provisions, Minimum	$ 145,379	$ 147,138
Banking Regulation, Tier 1 Leverage Capital Ratio, To be well capitalized under prompt corrective action provisions, Minimum	0.05	0.05
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Actual	$ 318,206	$ 313,533
Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Actual	0.1289	0.1313
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Capital Adequacy, Minimum	$ 111,073	$ 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	$ 172,780	$ 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, To be well capitalized under prompt corrective action provisions, Minimum	$ 160,439	$ 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	$ 500,763	$ 495,107
Total risk-based capital, actual, ratio	0.1464	0.1461
Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum	$ 273,616	$ 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	$ 359,121	$ 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, To be well capitalized under prompt corrective action provisions , Minimum	$ 342,020	$ 338,814
Banking Regulation, Total Risk-Based Capital Ratio, To be well capitalized under prompt corrective action provisions, Minimum	0.10	0.10
Banking Regulation, Tier 1 Risk-Based Capital, Actual	$ 473,856	$ 466,349
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual	0.1385	0.1376
Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum	$ 205,212	$ 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	$ 290,717	$ 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, To be well capitalized under prompt corrective action provisions, Minimum	$ 273,616	$ 271,051
Banking Regulation, Tier 1 Risk-Based Capital Ratio, To be well capitalized under prompt corrective action provisions, Minimum	0.08	0.08
Banking Regulation, Tier 1 Leverage Capital, Actual	$ 473,856	$ 466,349
Banking Regulation, Tier 1 Leverage Capital Ratio, Actual	0.1668	0.1622
Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum	$ 113,618	$ 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	$ 113,618	$ 115,000
Tier 1 leverage for capital adequacy purposes with capital conservation buffer, ratio	0.04	0.04
Banking Regulation, Tier 1 Leverage Capital, To be well capitalized under prompt corrective action provisions, Minimum	$ 142,022	$ 143,751
Banking Regulation, Tier 1 Leverage Capital Ratio, To be well capitalized under prompt corrective action provisions, Minimum	0.05	0.05
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Actual	$ 473,856	$ 466,349
Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Actual	0.1385	0.1376
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Capital Adequacy, Minimum	$ 153,909	$ 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	$ 239,414	$ 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, To be well capitalized under prompt corrective action provisions, Minimum	$ 222,313	$ 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	$ 217,053	$ 212,148
Total risk-based capital, actual, ratio	0.1262	0.1265
Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum	$ 137,540	$ 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	$ 180,521	$ 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, To be well capitalized under prompt corrective action provisions , Minimum	$ 171,925	$ 167,758
Banking Regulation, Total Risk-Based Capital Ratio, To be well capitalized under prompt corrective action provisions, Minimum	0.10	0.10
Banking Regulation, Tier 1 Risk-Based Capital, Actual	$ 202,927	$ 197,171
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual	0.118	0.1175
Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum	$ 103,155	$ 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	$ 146,136	$ 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, To be well capitalized under prompt corrective action provisions, Minimum	$ 137,540	$ 134,206
Banking Regulation, Tier 1 Risk-Based Capital Ratio, To be well capitalized under prompt corrective action provisions, Minimum	0.08	0.08
Banking Regulation, Tier 1 Leverage Capital, Actual	$ 202,927	$ 197,171
Banking Regulation, Tier 1 Leverage Capital Ratio, Actual	0.1192	0.1142
Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum	$ 68,119	$ 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	$ 68,119	$ 69,072
Tier 1 leverage for capital adequacy purposes with capital conservation buffer, ratio	0.04	0.04
Banking Regulation, Tier 1 Leverage Capital, To be well capitalized under prompt corrective action provisions, Minimum	$ 85,149	$ 86,340
Banking Regulation, Tier 1 Leverage Capital Ratio, To be well capitalized under prompt corrective action provisions, Minimum	0.05	0.05
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Actual	$ 202,927	$ 197,171
Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Actual	0.118	0.1175
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Capital Adequacy, Minimum	$ 77,366	$ 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	$ 120,347	$ 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, To be well capitalized under prompt corrective action provisions, Minimum	$ 111,751	$ 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	$ 311,027	$ 308,357
Total risk-based capital, actual, ratio	0.1418	0.1413
Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum	$ 175,510	$ 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	$ 230,358	$ 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, To be well capitalized under prompt corrective action provisions , Minimum	$ 219,388	$ 218,247
Banking Regulation, Total Risk-Based Capital Ratio, To be well capitalized under prompt corrective action provisions, Minimum	0.10	0.10
Banking Regulation, Tier 1 Risk-Based Capital, Actual	$ 286,109	$ 283,230
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual	0.1304	0.1298
Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum	$ 131,633	$ 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	$ 186,480	$ 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, To be well capitalized under prompt corrective action provisions, Minimum	$ 175,510	$ 174,598
Banking Regulation, Tier 1 Risk-Based Capital Ratio, To be well capitalized under prompt corrective action provisions, Minimum	0.08	0.08
Banking Regulation, Tier 1 Leverage Capital, Actual	$ 286,109	$ 283,230
Banking Regulation, Tier 1 Leverage Capital Ratio, Actual	0.1243	0.1203
Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum	$ 92,061	$ 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	$ 92,061	$ 94,143
Tier 1 leverage for capital adequacy purposes with capital conservation buffer, ratio	0.04	0.04
Banking Regulation, Tier 1 Leverage Capital, To be well capitalized under prompt corrective action provisions, Minimum	$ 115,077	$ 117,679
Banking Regulation, Tier 1 Leverage Capital Ratio, To be well capitalized under prompt corrective action provisions, Minimum	0.05	0.05
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Actual	$ 286,109	$ 283,230
Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Actual	0.1304	0.1298
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Capital Adequacy, Minimum	$ 98,725	$ 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	$ 153,572	$ 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, To be well capitalized under prompt corrective action provisions, Minimum	$ 142,602	$ 141,861
Common equity Tier 1, To be well capitalized under prompt corrective action provisions, ratio	6.50%	6.50%