Annual report pursuant to Section 13 and 15(d)

REGULATORY MATTERS - Company and Bank's actual capital amounts and ratios (Details)

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REGULATORY MATTERS - Company and Bank's actual capital amounts and ratios (Details)
$ in Thousands
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Capital City Bank Group [Member]    
Actual [Abstract]    
Common Equity Tier 1 $ 310,947 $ 281,494
Tier I capital to total average assets 361,947 332,494
Capital 384,743 355,338
Tier 1 leverage $ 361,947 $ 332,494
Common Equity Tier 1, percent 0.1386 0.1371
Tier 1 Based Capital, percent 0.1614 0.1619
Total Capital, percent 0.1715 0.1730
Tier 1 Leverage, percent 0.0895 0.0933
Required for Capital Adequacy Purposes [Abstract]    
Common Equity Tier 1, Required for Capital $ 100,925 $ 92,424
Tier I Capital, Requied for Capital 134,566 123,232
Total Capital, Requied for Capital 179,422 164,310
Tier 1 Leverage, Required for Capital $ 161,749 $ 142,560
Common Equity Tier 1, Required for Capital, percent 0.0450 0.0450
Tier 1 Capital, Required for Capital, percent 0.0600 0.0600
Total Capital, Required for Capital, percent 0.0800 0.0800
Tier I Leverage, Required for Capital, percent 0.0400 0.0400
Capital City Bank [Member]    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Statutory Amount Available for Dividend Payments without Regulatory Approval $ 43,000  
Actual [Abstract]    
Common Equity Tier 1 346,959 $ 302,147
Tier I capital to total average assets 346,959 302,147
Capital 369,754 324,991
Tier 1 leverage $ 346,959 $ 302,147
Common Equity Tier 1, percent 0.1550 0.1475
Tier 1 Based Capital, percent 0.1550 0.1475
Total Capital, percent 0.1652 0.1587
Tier 1 Leverage, percent 0.0859 0.0849
Required for Capital Adequacy Purposes [Abstract]    
Common Equity Tier 1, Required for Capital $ 100,725 $ 92,177
Tier I Capital, Requied for Capital 134,300 122,903
Total Capital, Requied for Capital 179,066 163,870
Tier 1 Leverage, Required for Capital $ 161,515 $ 142,280
Common Equity Tier 1, Required for Capital, percent 0.0450 0.0450
Tier 1 Capital, Required for Capital, percent 0.0600 0.0600
Total Capital, Required for Capital, percent 0.0800 0.0800
Tier I Leverage, Required for Capital, percent 0.0400 0.0400
To Be Well Capitialized Under Prompt Corrective Action Provisions [Abstract]    
Common Equity Tier 1, Well-Capitialized $ 145,491 $ 133,145
Tier 1 Capital, Well-Capitalized 179,066 163,870
Total Capital, Well-Capitalized 223,833 204,838
Tier 1 Leverage, Well-Capitalized $ 201,894 $ 177,850
Common Equity Tier 1, Well-Capitalized, percent 0.0650 0.0650
Tier 1 Capital, Well-Capitalized, percent 0.0800 0.0800
Total Capital, Well-Capitalized, percent 0.1000 0.1000
Tier 1 Leverage, Well-Capitalized, percent 0.0500 0.0500