Annual report [Section 13 and 15(d), not S-K Item 405]

REGULATORY MATTERS (Schedule of Company and Bank's Actual Capital Amounts and Ratios) (Details)

v3.25.4
REGULATORY MATTERS (Schedule of Company and Bank's Actual Capital Amounts and Ratios) (Details)
$ in Thousands
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Capital City Bank Group [Member]    
Actual [Abstract]    
Common Equity Tier 1 $ 464,340 $ 412,445
Tier 1 Capital 505,340 463,445
Total Capital 536,638 494,851
Tier 1 leverage $ 505,340 $ 463,445
Common Equity Tier 1, percent 0.1856 0.1554
Tier 1 Capital, percent 0.2020 0.1746
Total Capital, percent 0.2145 0.1864
Tier 1 Leverage, percent 0.1177 0.1105
Required for Capital Adequacy Purposes [Abstract]    
Common Equity Tier 1, Required for Capital $ 112,675 $ 119,437
Tier I Capital, Required for Capital 150,233 159,249
Total Capital, Required for Capital 200,311 212,332
Tier 1 Leverage, Required for Capital $ 171,789 $ 167,764
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 $ 49,200  
Actual [Abstract]    
Common Equity Tier 1 431,958 $ 405,313
Tier 1 Capital 431,958 405,313
Total Capital 463,246 436,719
Tier 1 leverage $ 431,958 $ 405,313
Common Equity Tier 1, percent 0.1727 0.1524
Tier 1 Capital, percent 0.1727 0.1524
Total Capital, percent 0.1852 0.1642
Tier 1 Leverage, percent 0.1006 0.0967
Required for Capital Adequacy Purposes [Abstract]    
Common Equity Tier 1, Required for Capital $ 112,634 $ 119,708
Tier I Capital, Required for Capital 150,179 159,611
Total Capital, Required for Capital 200,238 212,814
Tier 1 Leverage, Required for Capital $ 171,733 $ 167,627
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 Capitalized Under Prompt Corrective Action Provisions [Abstract]    
Common Equity Tier 1, Well-Capitalized $ 162,694 $ 172,912
Tier 1 Capital, Well-Capitalized 200,238 212,814
Total Capital, Well-Capitalized 250,298 266,018
Tier 1 Leverage, Well-Capitalized $ 214,667 $ 209,533
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