EARNINGS PER SHARE - Schedule of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Numerator:
Net earnings attributable to Guaranty Bancshares, Inc.	$ 7,435	$ 9,581	$ 14,123	$ 17,862
Denominator:
Weighted-average shares outstanding (basic)	11,483,091	11,735,475	11,511,129	11,836,970
Effect of dilutive securities:
Common stock equivalent shares from stock options	42,413	21,037	49,734	44,464
Weighted-average shares outstanding (diluted)	11,525,504	11,756,512	11,560,863	11,881,434
Net earnings attributable to Guaranty Bancshares, Inc. per share
Basic	$ 0.65	$ 0.82	$ 1.23	$ 1.51
Diluted	$ 0.65	$ 0.81	$ 1.22	$ 1.5