EARNINGS PER SHARE - Schedule of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Numerator:
Net earnings attributable to Guaranty Bancshares, Inc.	$ 6,688	$ 8,281
Denominator:
Weighted-average shares outstanding (basic)	11,539,167	11,939,593
Effect of dilutive securities:
Common stock equivalent shares from stock options	59,072	72,411
Weighted-average shares outstanding (diluted)	11,598,239	12,012,004
Net earnings attributable to Guaranty Bancshares, Inc. per share
Basic	$ 0.58	$ 0.69
Diluted	$ 0.58	$ 0.69