FINANCIAL INFORMATION OF COLONY BANKCORP, INC. (PARENT ONLY) - Statements of Operations, Parent Company (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Interest income
Total interest income	$ 91,490	$ 70,586
Expenses
Salaries and employee benefits	52,809	45,596
Income tax benefit	3,310	4,495
Net income	19,542	18,659
Parent Company
Interest income
Dividends from subsidiaries	10,295	31,060
Total interest income	10,317	31,075
Expenses
Interest	2,299	1,012
Salaries and employee benefits	457	371
Other	450	604
Total expenses	3,206	1,987
Income before income taxes	7,111	29,088
Income tax benefit	(914)	(731)
Income before equity in undistributed earnings (distributions in excess of earnings) of subsidiaries	8,025	29,819
Equity in undistributed earnings(distributions in excess of earnings) of subsidiaries	11,517	(11,160)
Net income	19,542	18,659
Parent Company | Financial Service, Other
Interest income
Other	$ 22	$ 15