| Cover | 12 Months Ended |
| Dec. 31, 2022 | |
| Cover [Abstract] | |
| Document Type | DEF 14A |
| Entity Registrant Name | Capital City Bank Group, Inc. |
| Entity Central Index Key | 0000726601 |
| Amendment Flag | false |
| Pay vs Performance Disclosure - USD ($) | 12 Months Ended | ||||
| Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | |||
| Pay vs Performance Disclosure [Table] | |||||
| Pay vs Performance [Table Text Block] | (1) (1) (4) (2) (2) (4) (3) (3) (5) Average summary Average compensation compensation table total for actually paid Value of initial fixed $100 Summary non-PEO to non-PEO investment based on: (3) Diluted compensation Compensation named named Total Peer group Earnings table total for actually paid executive executive shareholder total Net Per Share Year PEO (1) to PEO (1)(4) officers (2) officers (2)(4) return shareholder return income Growth (5) 2022 $ (707,103 ) $ 1,276,058 $ 262,304 $ 860,912 $ 114.42 $ 111.47 $ 40,147 $ 2.36 2021 $ 1,238,364 $ 996,828 $ 740,356 $ 678,321 $ 90.94 $ 126.43 $ 33,396 $ 1.98 2020 $ 2,637,979 $ 1,303,883 $ 1,333,513 $ 766,977 $ 82.66 $ 90.82 $ 31,576 $ 1.88 | ||||
| Named Executive Officers, Footnote [Text Block] | The PEO in 2020, 2021, and 2022 is Mr. William G. Smith, Jr. | ||||
| PEO Total Compensation Amount | [1] | $ (707,103) | $ 1,238,364 | $ 2,637,979 | |
| PEO Actually Paid Compensation Amount | [1],[2] | 1,276,058 | 996,828 | 1,303,883 | |
| Non-PEO NEO Average Total Compensation Amount | [3] | 262,304 | 740,356 | 1,333,513 | |
| Non-PEO NEO Average Compensation Actually Paid Amount | [2],[3] | $ 860,912 | 678,321 | 766,977 | |
| Adjustment to Non-PEO NEO Compensation Footnote [Text Block] | The non-PEO NEOs in 2020, 2021, and 2022 were Messrs. J. Kimbrough Davis and Thomas A. Barron. | ||||
| Compensation Actually Paid vs. Total Shareholder Return [Text Block] | Relationship between CAP and Company TSR The graph below reflects the relationship between PEO and Average Non-PEO NEO CAP amounts and the Company’s TSR (assuming an initial investment of $100 made on December 31, 2019) for the fiscal years ending December 31, 2020, 2021, and 2022. | ||||
| Compensation Actually Paid vs. Net Income [Text Block] | Relationship between CAP and Net Income The graph below reflects the relationship between PEO and Average Non-PEO NEO CAP amounts and the Company’s net income for the fiscal years ending December 31, 2020, 2021, and 2022. | ||||
| Compensation Actually Paid vs. Company Selected Measure [Text Block] | Relationship between CAP and Diluted Earnings Per Share The graph below reflects the relationship between PEO and Average Non-PEO NEO CAP amounts and the Company’s diluted earnings per share for the fiscal years ending December 31, 2020, 2021, and 2022. | ||||
| Total Shareholder Return Vs Peer Group [Text Block] | Relationship between Company TSR and Peer Group TSR The graph below reflects the relationship between Company TSR and Peer Group TSR (each assuming an initial investment of $100 made on December 31, 2019) for the fiscal years ending December 31, 2020, 2021, and 2022. | ||||
| Tabular List [Table Text Block] | Required Tabular Disclosure of Most Important Measures Linking Compensation Actually Paid During 2022 to Company Performance We disclose below, in no particular order, the most important measures used by the Company to link compensation actually paid to our NEOs for 2022 to Company performance. · Net Income · Diluted Earnings Per Share Growth · Efficiency Ratio · Level of Classified Assets | ||||
| Total Shareholder Return Amount | [4] | $ 114.42 | 90.94 | 82.66 | |
| Peer Group Total Shareholder Return Amount | [4] | 111.47 | 126.43 | 90.82 | |
| Net Income (Loss) | $ 40,147 | $ 33,396 | $ 31,576 | ||
| Company Selected Measure Amount | [5] | 2.36 | 1.98 | 1.88 | |
| PEO Name | Mr. William G. Smith, Jr. | ||||
| Measure [Axis]: 1 | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Measure Name | Net Income | ||||
| Measure [Axis]: 2 | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Measure Name | Diluted Earnings Per Share Growth | ||||
| Non-GAAP Measure Description [Text Block] | Diluted Earnings Per Share Growth | ||||
| Measure [Axis]: 3 | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Measure Name | Efficiency Ratio | ||||
| Measure [Axis]: 4 | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Measure Name | Level of Classified Assets | ||||
| PEO [Member] | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Adjustment to Compensation Amount | $ 1,983,161 | $ (241,536) | $ (1,334,096) | ||
| PEO [Member] | Increase/deduction for Change in the actuarial present values reported under the Change in Pension Value and Nonqualified Deferred Compensation Earnings column of the SCT | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Adjustment to Compensation Amount | 1,917,485 | (214,283) | (1,574,593) | ||
| PEO [Member] | Deduction for amounts reported under the Stock Awards column in the SCT | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Adjustment to Compensation Amount | (255,278) | (256,482) | (241,555) | ||
| PEO [Member] | Increase for fair value of awards granted during Year that remain unvested as of Year end | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Adjustment to Compensation Amount | 25,175 | 13,442 | 37,054 | ||
| PEO [Member] | Increase/deduction for change in fair value from prior Year-end to current Year-end of awards granted prior to Year that were outstanding and unvested as of Year-end | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Adjustment to Compensation Amount | 37,765 | 9,375 | (45,051) | ||
| PEO [Member] | Increase/deduction for change in fair value from prior year-end to vesting date of awards granted prior to Year that vested during Year | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Adjustment to Compensation Amount | 73,056 | 82,742 | 377,489 | ||
| PEO [Member] | Increase for fair value of awards granted during Year that vest during Year | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Adjustment to Compensation Amount | 184,958 | 123,669 | 112,560 | ||
| Non-PEO NEO [Member] | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Adjustment to Compensation Amount | 598,609 | (62,035) | (566,536) | ||
| Non-PEO NEO [Member] | Increase/deduction for Change in the actuarial present values reported under the Change in Pension Value and Nonqualified Deferred Compensation Earnings column of the SCT | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Adjustment to Compensation Amount | 612,619 | (51,938) | (663,135) | ||
| Non-PEO NEO [Member] | Deduction for amounts reported under the Stock Awards column in the SCT | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Adjustment to Compensation Amount | (135,147) | (107,290) | (101,224) | ||
| Non-PEO NEO [Member] | Increase for fair value of awards granted during Year that remain unvested as of Year end | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Adjustment to Compensation Amount | 10,070 | 5,366 | 14,821 | ||
| Non-PEO NEO [Member] | Increase/deduction for change in fair value from prior Year-end to current Year-end of awards granted prior to Year that were outstanding and unvested as of Year-end | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Adjustment to Compensation Amount | 15,104 | 3,749 | (18,020) | ||
| Non-PEO NEO [Member] | Increase/deduction for change in fair value from prior year-end to vesting date of awards granted prior to Year that vested during Year | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Adjustment to Compensation Amount | 29,217 | 33,097 | 150,981 | ||
| Non-PEO NEO [Member] | Increase for fair value of awards granted during Year that vest during Year | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Adjustment to Compensation Amount | 132,113 | 54,980 | 50,041 | ||
| Non-PEO NEO [Member] | Deduction of fair value of awards granted prior to Year that were forfeited during Year | |||||
| Pay vs Performance Disclosure [Table] | |||||
| Adjustment to Compensation Amount | $ (65,366) | [6] | |||
| [1] The PEO in 2020, 2021, and 2022 is Mr. William G. Smith, Jr. The non-PEO NEOs in 2020, 2021, and 2022 were Messrs. J. Kimbrough Davis and Thomas A. Barron. Diluted Earnings Per Share Growth is the financial measure from the tabular list of most important measures shown in the section below entitled “Required Tabular Disclosure of Most Important Measures Linking Compensation Actually Paid During 2022 to Company Performance”. | |||||
