FINANCIAL INFORMATION OF COLONY BANKCORP, INC. (PARENT ONLY) - Balance Sheets, Parent Company (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Assets
Other	$ 24,420	$ 16,678
Total assets	2,936,570	2,691,715
Liabilities
Other	11,953	10,952
Total liabilities	2,706,302	2,474,008
Stockholders’ equity
Common stock, par value $1.00; 50,000,000 shares authorized, 17,598,123 and 13,673,898 shares issued and outstanding as of December 31, 2022 and 2021, respectively	17,598	13,674
Paid-in capital	167,537	111,021
Retained earnings	111,573	99,189
Accumulated other comprehensive loss, net of tax	(66,440)	(6,177)
Total stockholders’ equity	230,268	217,707	$ 144,488
Total liabilities and stockholders’ equity	$ 2,936,570	$ 2,691,715
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Parent Company
Assets
Cash	$ 40,361	$ 7,304
Investment in subsidiaries	249,868	245,614
Other	5,115	1,689
Total assets	295,344	254,607
Liabilities
Other	1,724	108
Other borrowed money	0	12,563
Subordinated notes	39,123	0
Subordinated debentures	24,229	24,229
Total liabilities	65,076	36,900
Stockholders’ equity
Common stock, par value $1.00; 50,000,000 shares authorized, 17,598,123 and 13,673,898 shares issued and outstanding as of December 31, 2022 and 2021, respectively	17,598	13,674
Paid-in capital	167,537	111,021
Retained earnings	111,573	99,189
Accumulated other comprehensive loss, net of tax	(66,440)	(6,177)
Total stockholders’ equity	230,268	217,707
Total liabilities and stockholders’ equity	$ 295,344	$ 254,607
Common stock, shares authorized (in shares)	50,000,000	50,000,000