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Note 12 - REGULATORY CAPITAL REQUIREMENTS (Details) $ in Thousands | Sep. 30, 2025 USD ($) | Dec. 31, 2024 USD ($)
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Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Banking Regulation, Total Capital, Actual | $ 1,343,520 | $ 1,273,903
Total risk-based capital, actual, ratio | 0.1403 | 0.141
Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum | $ 765,991 | $ 723,016
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 | $ 1,005,363 | $ 948,958
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 | $ 957,488 | $ 903,770
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 | $ 1,039,242 | $ 955,039
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual | 0.1085 | 0.1057
Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum | $ 574,493 | $ 542,262
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 | $ 813,865 | $ 768,204
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 | $ 765,991 | $ 723,016
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 | $ 1,039,242 | $ 955,039
Banking Regulation, Tier 1 Leverage Capital Ratio, Actual | 0.1129 | 0.1073
Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum | $ 368,209 | $ 356,091
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 | $ 368,209 | $ 356,091
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 | $ 460,261 | $ 445,114
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 | $ 990,284 | $ 906,179
Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Actual | 0.1034 | 0.1003
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Capital Adequacy, Minimum | $ 430,870 | $ 406,696
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 | $ 670,242 | $ 632,639
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 | $ 622,367 | $ 587,450
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 | $ 337,105 | $ 323,221
Total risk-based capital, actual, ratio | 0.1365 | 0.1365
Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum | $ 197,552 | $ 189,365
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 | $ 259,287 | $ 248,541
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 | $ 246,940 | $ 236,706
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 | $ 308,752 | $ 293,597
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual | 0.125 | 0.124
Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum | $ 148,164 | $ 142,024
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 | $ 209,899 | $ 201,200
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 | $ 197,552 | $ 189,365
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 | $ 308,752 | $ 293,597
Banking Regulation, Tier 1 Leverage Capital Ratio, Actual | 0.1117 | 0.1141
Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum | $ 110,561 | $ 102,969
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 | $ 110,561 | $ 102,969
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 | $ 138,202 | $ 128,712
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 | $ 308,752 | $ 293,597
Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Actual | 0.125 | 0.124
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Capital Adequacy, Minimum | $ 111,123 | $ 106,518
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 | $ 172,858 | $ 165,694
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 | $ 160,511 | $ 153,859
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 | $ 477,756 | $ 452,942
Total risk-based capital, actual, ratio | 0.1458 | 0.1479
Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum | $ 262,055 | $ 245,055
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 | $ 343,948 | $ 321,635
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 | $ 327,569 | $ 306,319
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 | $ 450,491 | $ 424,253
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual | 0.1375 | 0.1385
Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum | $ 196,542 | $ 183,792
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 | $ 278,434 | $ 260,371
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 | $ 262,055 | $ 245,055
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 | $ 450,491 | $ 424,253
Banking Regulation, Tier 1 Leverage Capital Ratio, Actual | 0.1681 | 0.164
Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum | $ 107,215 | $ 103,449
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 | $ 107,215 | $ 103,449
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 | $ 134,019 | $ 129,312
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 | $ 450,491 | $ 424,253
Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Actual | 0.1375 | 0.1385
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Capital Adequacy, Minimum | $ 147,406 | $ 137,844
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 | $ 229,298 | $ 214,424
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 | $ 212,920 | $ 199,108
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 | $ 205,846 | $ 189,362
Total risk-based capital, actual, ratio | 0.1252 | 0.1294
Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum | $ 131,488 | $ 117,065
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 | $ 172,577 | $ 153,648
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 | $ 164,360 | $ 146,332
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 | $ 192,102 | $ 176,646
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual | 0.1169 | 0.1207
Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum | $ 98,616 | $ 87,799
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 | $ 139,706 | $ 124,382
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 | $ 131,488 | $ 117,065
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 | $ 192,102 | $ 176,646
Banking Regulation, Tier 1 Leverage Capital Ratio, Actual | 0.1172 | 0.1172
Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum | $ 65,538 | $ 60,305
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 | $ 65,538 | $ 60,305
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 | $ 81,923 | $ 75,382
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 | $ 192,102 | $ 176,646
Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Actual | 0.1169 | 0.1207
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Capital Adequacy, Minimum | $ 73,962 | $ 65,849
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 | $ 115,052 | $ 102,432
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 | $ 106,834 | $ 95,115
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 | $ 307,907 | $ 297,047
Total risk-based capital, actual, ratio | 0.1419 | 0.1426
Banking Regulation, Total Risk-Based Capital, Capital Adequacy, Minimum | $ 173,542 | $ 166,695
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 | $ 227,773 | $ 218,787
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 | $ 216,927 | $ 208,369
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 | $ 281,017 | $ 272,621
Banking Regulation, Tier 1 Risk-Based Capital Ratio, Actual | 0.1295 | 0.1308
Banking Regulation, Tier 1 Risk-Based Capital, Capital Adequacy, Minimum | $ 130,156 | $ 125,021
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 | $ 184,388 | $ 177,113
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 | $ 173,542 | $ 166,695
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 | $ 281,017 | $ 272,621
Banking Regulation, Tier 1 Leverage Capital Ratio, Actual | 0.1219 | 0.1215
Banking Regulation, Tier 1 Leverage Capital, Capital Adequacy, Minimum | $ 92,212 | $ 89,770
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 | $ 92,212 | $ 89,770
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 | $ 115,266 | $ 112,213
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 | $ 281,017 | $ 272,621
Banking Regulation, Common Equity Tier 1 Risk-Based Capital Ratio, Actual | 0.1295 | 0.1308
Banking Regulation, Common Equity Tier 1 Risk-Based Capital, Capital Adequacy, Minimum | $ 97,617 | $ 93,766
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 | $ 151,849 | $ 145,858
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 | $ 141,003 | $ 135,440
Common equity Tier 1, To be well capitalized under prompt corrective action provisions, ratio | 6.50% | 6.50%

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- Definition The ratio Tier 1 Leverage Capital required to be categorized as well capitalized as defined in the regulatory framework for prompt corrective action. + References No definition available. + Details
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- Definition Amount of total capital as defined by regulatory framework. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 942 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477270/942-505-50-1 + Details
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