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BORROWINGS - Narrative (Details) - USD ($) |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
May 20, 2022 | Sep. 30, 2007 | Mar. 31, 2007 | Jun. 30, 2006 | Jun. 30, 2004 | Dec. 31, 2025 | Dec. 31, 2024
Debt Instrument [Line Items] |  |  |  |  |  |  |
Lendable collateral value of loans pledged |  |  |  |  |  | $ 318,600,000 | $ 204,500,000
Remaining credit availability |  |  |  |  |  | 747,000,000.0 | 578,700,000
Available federal funds lines of credit |  |  |  |  |  | 143,000,000.0 | 64,500,000
Federal funds lines of credit outstanding |  |  |  |  |  | 0 | 0
Total borrowings |  |  |  |  |  | 258,104,000 | $ 248,039,000
Trust Preferred Securities Subject to Mandatory Redemption |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Amount |  |  |  |  |  | 24,229,000 |
Trust Preferred Securities Subject to Mandatory Redemption | Colony Bankcorp Statutory Trust III |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Amount |  |  |  |  |  | $ 4,640,000 |
Subordinated debentures |  |  |  |  |  | 2.68% |
Proceeds from issuance of trust preferred securities |  |  |  |  | $ 4,500,000 |  |
Trust preferred securities, term (in years) |  |  |  |  | 30 years |  |
Trust preferred securities, redemption restriction period (in years) |  |  |  |  | 5 years |  |
Trust Preferred Securities Subject to Mandatory Redemption | Colony Bankcorp Capital Trust I |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Amount |  |  |  |  |  | $ 5,155,000 |
Subordinated debentures |  |  |  |  |  | 1.50% |
Proceeds from issuance of trust preferred securities |  |  |  | $ 5,000,000 |  |  |
Trust preferred securities, term (in years) |  |  |  | 30 years |  |  |
Trust preferred securities, redemption restriction period (in years) |  |  |  | 5 years |  |  |
Trust Preferred Securities Subject to Mandatory Redemption | Colony Bankcorp Capital Trust II |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Amount |  |  |  |  |  | $ 9,279,000 |
Subordinated debentures |  |  |  |  |  | 1.65% |
Proceeds from issuance of trust preferred securities |  |  | $ 9,000,000 |  |  |  |
Trust preferred securities, term (in years) |  |  | 30 years |  |  |  |
Trust preferred securities, redemption restriction period (in years) |  |  | 5 years |  |  |  |
Trust Preferred Securities Subject to Mandatory Redemption | Colony Bankcorp Capital Trust III |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Amount |  |  |  |  |  | $ 5,155,000 |
Subordinated debentures |  |  |  |  |  | 1.40% |
Proceeds from issuance of trust preferred securities |  | $ 5,000,000 |  |  |  |  |
Trust preferred securities, term (in years) |  | 30 years |  |  |  |  |
Trust preferred securities, redemption restriction period (in years) |  | 5 years |  |  |  |  |
Subordinated Debt |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Amount | $ 39,500,000 |  |  |  |  |  |
Interest rate (as percent) | 5.25% |  |  |  |  | 5.25% | 5.25%
Subordinated debentures | 2.65% |  |  |  |  |  |
Total borrowings |  |  |  |  |  | $ 38,900,000 |
Subordinated Debt, Fixed Rate |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument term (in years) | 5 years |  |  |  |  |  |
Subordinated Debt, Variable Rate |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt instrument term (in years) | 5 years |  |  |  |  |  |
Federal Reserve Bank of Atlanta |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Federal funds lines of credit outstanding |  |  |  |  |  | $ 0 | $ 0

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 + Details
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