Note 10 - REGULATORY CAPITAL REQUIREMENTS - Capital Requirements (Details) $ in Thousands	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Total risk-based capital, actual, amount	$ 907,484	$ 814,629
Total risk-based capital, actual, ratio	0.1340	0.1477
Total risk-based capital for capital adequacy purposes, amount, without capital conservation buffer	$ 543,913	$ 441,100
Total risk-based capital for capital adequacy purposes, ratio, without capital conservation buffer	8.00%	8.00%
Total risk-based capital for capital adequacy purposes, amount	$ 713,885	$ 578,944
Total risk-based capital for capital adequacy purposes, ratio	0.1050	0.1050
Total risk-based capital to be well capitalized under prompt corrective action provisions, amount	$ 679,891	$ 551,375
Total risk-based capital to be well capitalized under prompt corrective action provisions, ratio	0.1000	0.1000
Tier 1 risk-based capital, actual, amount	$ 689,200	$ 631,649
Tier 1 risk-based capital, actual, ratio	0.1018	0.1146
Tier 1 risk-based capital for capital adequacy purposes, amount, without capital conservation buffer	$ 407,934	$ 330,825
Tier 1 risk-based capital for capital adequacy purposes, ratio, without capital conservation buffer	6.00%	6.00%
Tier 1 risk-based capital for capital adequacy purposes, amount	$ 577,907	$ 468,669
Tier 1 risk-based capital for capital adequacy purposes, ratio	0.0850	0.0850
Tier 1 risk-based capital to be well capitalized under prompt corrective action provisions, amount	$ 543,913	$ 441,100
Tier 1 risk-based capital to be well capitalized under prompt corrective action provisions, ratio	0.0800	0.0800
Tier 1 leverage, actual, amount	$ 689,200	$ 631,649
Tier 1 leverage, actual, ratio	0.0961	0.1046
Tier 1 leverage for capital adequacy purposes, amount, without capital conservation buffer	$ 286,877	$ 241,579
Tier 1 leverage for capital adequacy purposes, ratio, without capital conservation buffer	4.00%	4.00%
Tier 1 leverage for capital adequacy purposes, amount	$ 286,877	$ 241,579
Tier 1 leverage for capital adequacy purposes, ratio	0.0400	0.0400
Tier 1 leverage to be well capitalized under prompt corrective action provisions, amount	$ 358,596	$ 301,974
Tier 1 leverage to be well capitalized under prompt corrective action provisions, ratio	0.0500	0.0500
Common equity Tier 1, actual, amount	$ 640,666	$ 593,494
Common equity Tier 1, actual ratio	0.0946	0.1076
Common equity Tier 1 for capital adequacy purposes, amount, without capital conservation buffer	$ 305,951	$ 248,119
Common equity Tier 1 for capital adequacy purposes, ratio, without capital conservation buffer	4.50%	4.50%
Common equity Tier 1 for capital adequacy purposes, amount	$ 475,923	$ 385,962
Common equity Tier 1 for capital adequacy purposes, ratio	7.00%	7.00%
Common equity Tier 1 to be well capitalized under prompt corrective action provisions, amount	$ 441,929	$ 358,394
Common equity Tier 1 to be well capitalized under prompt corrective action provisions, ratio	6.50%	6.50%
QCBT
Total risk-based capital, actual, amount	$ 257,008	$ 247,658
Total risk-based capital, actual, ratio	0.1373	0.1329
Total risk-based capital for capital adequacy purposes, amount, without capital conservation buffer	$ 149,733	$ 149,126
Total risk-based capital for capital adequacy purposes, ratio, without capital conservation buffer	8.00%	8.00%
Total risk-based capital for capital adequacy purposes, amount	$ 196,525	$ 195,727
Total risk-based capital for capital adequacy purposes, ratio	0.1050	0.1050
Total risk-based capital to be well capitalized under prompt corrective action provisions, amount	$ 187,166	$ 186,407
Total risk-based capital to be well capitalized under prompt corrective action provisions, ratio	0.1000	0.1000
Tier 1 risk-based capital, actual, amount	$ 233,523	$ 224,253
Tier 1 risk-based capital, actual, ratio	0.1248	0.1203
Tier 1 risk-based capital for capital adequacy purposes, amount, without capital conservation buffer	$ 112,300	$ 111,844
Tier 1 risk-based capital for capital adequacy purposes, ratio, without capital conservation buffer	6.00%	6.00%
Tier 1 risk-based capital for capital adequacy purposes, amount	$ 159,091	$ 158,446
Tier 1 risk-based capital for capital adequacy purposes, ratio	0.0850	0.0850
Tier 1 risk-based capital to be well capitalized under prompt corrective action provisions, amount	$ 149,733	$ 149,126
Tier 1 risk-based capital to be well capitalized under prompt corrective action provisions, ratio	0.0800	0.0800
Tier 1 leverage, actual, amount	$ 233,523	$ 224,253
Tier 1 leverage, actual, ratio	0.1074	0.1045
Tier 1 leverage for capital adequacy purposes, amount, without capital conservation buffer	$ 87,009	$ 85,873
Tier 1 leverage for capital adequacy purposes, ratio, without capital conservation buffer	4.00%	4.00%
Tier 1 leverage for capital adequacy purposes, amount	$ 87,009	$ 85,873
Tier 1 leverage for capital adequacy purposes, ratio	0.0400	0.0400
Tier 1 leverage to be well capitalized under prompt corrective action provisions, amount	$ 108,761	$ 107,341
Tier 1 leverage to be well capitalized under prompt corrective action provisions, ratio	0.0500	0.0500
Common equity Tier 1, actual, amount	$ 233,523	$ 224,253
Common equity Tier 1, actual ratio	0.1248	0.1203
Common equity Tier 1 for capital adequacy purposes, amount, without capital conservation buffer	$ 84,225	$ 83,883
Common equity Tier 1 for capital adequacy purposes, ratio, without capital conservation buffer	4.50%	4.50%
Common equity Tier 1 for capital adequacy purposes, amount	$ 131,016	$ 130,485
Common equity Tier 1 for capital adequacy purposes, ratio	7.00%	7.00%
Common equity Tier 1 to be well capitalized under prompt corrective action provisions, amount	$ 121,658	$ 121,164
Common equity Tier 1 to be well capitalized under prompt corrective action provisions, ratio	6.50%	6.50%
CRBT
Total risk-based capital, actual, amount	$ 276,943	$ 277,673
Total risk-based capital, actual, ratio	0.1439	0.1485
Total risk-based capital for capital adequacy purposes, amount, without capital conservation buffer	$ 153,929	$ 149,595
Total risk-based capital for capital adequacy purposes, ratio, without capital conservation buffer	8.00%	8.00%
Total risk-based capital for capital adequacy purposes, amount	$ 202,032	$ 196,343
Total risk-based capital for capital adequacy purposes, ratio	0.1050	0.1050
Total risk-based capital to be well capitalized under prompt corrective action provisions, amount	$ 192,412	$ 186,993
Total risk-based capital to be well capitalized under prompt corrective action provisions, ratio	0.1000	0.1000
Tier 1 risk-based capital, actual, amount	$ 252,865	$ 254,279
Tier 1 risk-based capital, actual, ratio	0.1314	0.1360
Tier 1 risk-based capital for capital adequacy purposes, amount, without capital conservation buffer	$ 115,447	$ 112,196
Tier 1 risk-based capital for capital adequacy purposes, ratio, without capital conservation buffer	6.00%	6.00%
Tier 1 risk-based capital for capital adequacy purposes, amount	$ 163,550	$ 158,944
Tier 1 risk-based capital for capital adequacy purposes, ratio	0.0850	0.0850
Tier 1 risk-based capital to be well capitalized under prompt corrective action provisions, amount	$ 153,929	$ 149,595
Tier 1 risk-based capital to be well capitalized under prompt corrective action provisions, ratio	0.0800	0.0800
Tier 1 leverage, actual, amount	$ 252,865	$ 254,279
Tier 1 leverage, actual, ratio	0.1299	0.1259
Tier 1 leverage for capital adequacy purposes, amount, without capital conservation buffer	$ 77,854	$ 80,777
Tier 1 leverage for capital adequacy purposes, ratio, without capital conservation buffer	4.00%	4.00%
Tier 1 leverage for capital adequacy purposes, amount	$ 77,854	$ 80,777
Tier 1 leverage for capital adequacy purposes, ratio	0.0400	0.0400
Tier 1 leverage to be well capitalized under prompt corrective action provisions, amount	$ 97,318	$ 100,971
Tier 1 leverage to be well capitalized under prompt corrective action provisions, ratio	0.0500	0.0500
Common equity Tier 1, actual, amount	$ 252,865	$ 254,279
Common equity Tier 1, actual ratio	0.1314	0.1360
Common equity Tier 1 for capital adequacy purposes, amount, without capital conservation buffer	$ 86,585	$ 84,147
Common equity Tier 1 for capital adequacy purposes, ratio, without capital conservation buffer	4.50%	4.50%
Common equity Tier 1 for capital adequacy purposes, amount	$ 134,688	$ 130,895
Common equity Tier 1 for capital adequacy purposes, ratio	7.00%	7.00%
Common equity Tier 1 to be well capitalized under prompt corrective action provisions, amount	$ 125,067	$ 121,546
Common equity Tier 1 to be well capitalized under prompt corrective action provisions, ratio	6.50%	6.50%
CSB
Total risk-based capital, actual, amount	$ 132,136	$ 123,365
Total risk-based capital, actual, ratio	0.1184	0.1195
Total risk-based capital for capital adequacy purposes, amount, without capital conservation buffer	$ 89,251	$ 82,601
Total risk-based capital for capital adequacy purposes, ratio, without capital conservation buffer	8.00%	8.00%
Total risk-based capital for capital adequacy purposes, amount	$ 117,142	$ 108,413
Total risk-based capital for capital adequacy purposes, ratio	0.1050	0.1050
Total risk-based capital to be well capitalized under prompt corrective action provisions, amount	$ 111,563	$ 103,251
Total risk-based capital to be well capitalized under prompt corrective action provisions, ratio	0.1000	0.1000
Tier 1 risk-based capital, actual, amount	$ 118,157	$ 110,410
Tier 1 risk-based capital, actual, ratio	0.1059	0.1069
Tier 1 risk-based capital for capital adequacy purposes, amount, without capital conservation buffer	$ 66,938	$ 61,951
Tier 1 risk-based capital for capital adequacy purposes, ratio, without capital conservation buffer	6.00%	6.00%
Tier 1 risk-based capital for capital adequacy purposes, amount	$ 94,829	$ 87,763
Tier 1 risk-based capital for capital adequacy purposes, ratio	0.0850	0.0850
Tier 1 risk-based capital to be well capitalized under prompt corrective action provisions, amount	$ 89,251	$ 82,601
Tier 1 risk-based capital to be well capitalized under prompt corrective action provisions, ratio	0.0800	0.0800
Tier 1 leverage, actual, amount	$ 118,157	$ 110,410
Tier 1 leverage, actual, ratio	0.0992	0.0967
Tier 1 leverage for capital adequacy purposes, amount, without capital conservation buffer	$ 47,630	$ 45,676
Tier 1 leverage for capital adequacy purposes, ratio, without capital conservation buffer	4.00%	4.00%
Tier 1 leverage for capital adequacy purposes, amount	$ 47,630	$ 45,676
Tier 1 leverage for capital adequacy purposes, ratio	0.0400	0.0400
Tier 1 leverage to be well capitalized under prompt corrective action provisions, amount	$ 59,537	$ 57,095
Tier 1 leverage to be well capitalized under prompt corrective action provisions, ratio	0.0500	0.0500
Common equity Tier 1, actual, amount	$ 118,157	$ 110,410
Common equity Tier 1, actual ratio	0.1059	0.1069
Common equity Tier 1 for capital adequacy purposes, amount, without capital conservation buffer	$ 50,204	$ 46,463
Common equity Tier 1 for capital adequacy purposes, ratio, without capital conservation buffer	4.50%	4.50%
Common equity Tier 1 for capital adequacy purposes, amount	$ 78,094	$ 72,276
Common equity Tier 1 for capital adequacy purposes, ratio	7.00%	7.00%
Common equity Tier 1 to be well capitalized under prompt corrective action provisions, amount	$ 72,516	$ 67,113
Common equity Tier 1 to be well capitalized under prompt corrective action provisions, ratio	6.50%	6.50%
SFCB
Total risk-based capital, actual, amount		$ 101,067
Total risk-based capital, actual, ratio		0.1339
Total risk-based capital for capital adequacy purposes, amount, without capital conservation buffer		$ 60,369
Total risk-based capital for capital adequacy purposes, ratio, without capital conservation buffer		8.00%
Total risk-based capital for capital adequacy purposes, amount		$ 79,235
Total risk-based capital for capital adequacy purposes, ratio		0.1050
Total risk-based capital to be well capitalized under prompt corrective action provisions, amount		$ 75,462
Total risk-based capital to be well capitalized under prompt corrective action provisions, ratio		0.1000
Tier 1 risk-based capital, actual, amount		$ 91,625
Tier 1 risk-based capital, actual, ratio		0.1214
Tier 1 risk-based capital for capital adequacy purposes, amount, without capital conservation buffer		$ 45,277
Tier 1 risk-based capital for capital adequacy purposes, ratio, without capital conservation buffer		6.00%
Tier 1 risk-based capital for capital adequacy purposes, amount		$ 64,142
Tier 1 risk-based capital for capital adequacy purposes, ratio		0.0850
Tier 1 risk-based capital to be well capitalized under prompt corrective action provisions, amount		$ 60,369
Tier 1 risk-based capital to be well capitalized under prompt corrective action provisions, ratio		0.0800
Tier 1 leverage, actual, amount		$ 91,625
Tier 1 leverage, actual, ratio		0.1108
Tier 1 leverage for capital adequacy purposes, amount, without capital conservation buffer		$ 33,088
Tier 1 leverage for capital adequacy purposes, ratio, without capital conservation buffer		4.00%
Tier 1 leverage for capital adequacy purposes, amount		$ 33,088
Tier 1 leverage for capital adequacy purposes, ratio		0.0400
Tier 1 leverage to be well capitalized under prompt corrective action provisions, amount		$ 41,360
Tier 1 leverage to be well capitalized under prompt corrective action provisions, ratio		0.0500
Common equity Tier 1, actual, amount		$ 91,625
Common equity Tier 1, actual ratio		0.1214
Common equity Tier 1 for capital adequacy purposes, amount, without capital conservation buffer		$ 33,958
Common equity Tier 1 for capital adequacy purposes, ratio, without capital conservation buffer		4.50%
Common equity Tier 1 for capital adequacy purposes, amount		$ 52,823
Common equity Tier 1 for capital adequacy purposes, ratio		7.00%
Common equity Tier 1 to be well capitalized under prompt corrective action provisions, amount		$ 49,050
Common equity Tier 1 to be well capitalized under prompt corrective action provisions, ratio		6.50%
Guaranty Bank
Total risk-based capital, actual, amount	$ 220,292
Total risk-based capital, actual, ratio	0.1208
Total risk-based capital for capital adequacy purposes, amount, without capital conservation buffer	$ 148,137
Total risk-based capital for capital adequacy purposes, ratio, without capital conservation buffer	8.00%
Total risk-based capital for capital adequacy purposes, amount	$ 194,429
Total risk-based capital for capital adequacy purposes, ratio	0.1050
Total risk-based capital to be well capitalized under prompt corrective action provisions, amount	$ 185,171
Total risk-based capital to be well capitalized under prompt corrective action provisions, ratio	0.1000
Tier 1 risk-based capital, actual, amount	$ 197,467
Tier 1 risk-based capital, actual, ratio	0.1083
Tier 1 risk-based capital for capital adequacy purposes, amount, without capital conservation buffer	$ 111,103
Tier 1 risk-based capital for capital adequacy purposes, ratio, without capital conservation buffer	6.00%
Tier 1 risk-based capital for capital adequacy purposes, amount	$ 157,395
Tier 1 risk-based capital for capital adequacy purposes, ratio	0.0850
Tier 1 risk-based capital to be well capitalized under prompt corrective action provisions, amount	$ 148,137
Tier 1 risk-based capital to be well capitalized under prompt corrective action provisions, ratio	0.0800
Tier 1 leverage, actual, amount	$ 197,467
Tier 1 leverage, actual, ratio	0.1062
Tier 1 leverage for capital adequacy purposes, amount, without capital conservation buffer	$ 74,370
Tier 1 leverage for capital adequacy purposes, ratio, without capital conservation buffer	4.00%
Tier 1 leverage for capital adequacy purposes, amount	$ 74,370
Tier 1 leverage for capital adequacy purposes, ratio	0.0400
Tier 1 leverage to be well capitalized under prompt corrective action provisions, amount	$ 92,963
Tier 1 leverage to be well capitalized under prompt corrective action provisions, ratio	0.0500
Common equity Tier 1, actual, amount	$ 197,467
Common equity Tier 1, actual ratio	0.1083
Common equity Tier 1 for capital adequacy purposes, amount, without capital conservation buffer	$ 83,327
Common equity Tier 1 for capital adequacy purposes, ratio, without capital conservation buffer	4.50%
Common equity Tier 1 for capital adequacy purposes, amount	$ 129,620
Common equity Tier 1 for capital adequacy purposes, ratio	7.00%
Common equity Tier 1 to be well capitalized under prompt corrective action provisions, amount	$ 120,361
Common equity Tier 1 to be well capitalized under prompt corrective action provisions, ratio	6.50%