FINANCIAL INFORMATION OF COLONY BANKCORP, INC. (PARENT ONLY) - Statements of Cash Flows, Parent Company (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 19,542	$ 18,659
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	1,743	599
Net cash provided by operating activities	49,741	36,104
CASH FLOWS FROM INVESTING ACTIVITIES
Net cash and cash equivalents paid in insurance acquisitions	0	(4,210)
Net cash used in investing activities	(448,228)	(208,332)
CASH FLOWS FROM FINANCING ACTIVITIES
Cash paid for tax withholding related to vesting of restricted stock	(231)	0
Repurchase of shares	(540)	0
Dividends paid on common stock	(7,158)	(4,463)
Net cash provided by financing activities	281,933	185,954
Net increase (decrease) in cash and cash equivalents	(116,554)	13,726
Cash and cash equivalents at beginning of period	197,232	183,506
Cash and cash equivalents at end of period	80,678	197,232
Parent Company
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	19,542	18,659
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	1,743	599
Distribution in excess of earnings (equity in undistributed earnings) of subsidiaries	(11,517)	11,160
Change in deferred taxes	(2,125)	0
Change in interest payable	45	1
Other	270	(1,146)
Net cash provided by operating activities	7,958	29,273
CASH FLOWS FROM INVESTING ACTIVITIES
Net cash and cash equivalents paid in insurance acquisitions	0	(19,178)
Capital injection into Bank subsidiary	(53,000)	0
Net cash used in investing activities	(53,000)	(19,178)
CASH FLOWS FROM FINANCING ACTIVITIES
Net increase (decrease) in other borrowed money	26,560	(1,000)
Issuance of common stock	59,468	0
Cash paid for tax withholding related to vesting of restricted stock	(231)	0
Repurchase of shares	(540)	0
Dividends paid on common stock	(7,158)	(4,463)
Net cash provided by financing activities	78,099	(5,463)
Net increase (decrease) in cash and cash equivalents	33,057	4,632
Cash and cash equivalents at beginning of period	7,304	2,672
Cash and cash equivalents at end of period	$ 40,361	$ 7,304