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, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Numerator:
Net earnings attributable to Guaranty Bancshares, Inc.	$ 10,002	$ 7,435	$ 18,642	$ 14,123
Denominator:
Weighted-average shares outstanding (basic)	11,343,034	11,483,091	11,373,472	11,511,129
Effect of dilutive securities:
Common stock equivalent shares from stock options	89,761	42,413	86,421	49,734
Weighted-average shares outstanding (diluted)	11,432,795	11,525,504	11,459,893	11,560,863
Net earnings attributable to Guaranty Bancshares, Inc. per share
Basic	$ 0.88	$ 0.65	$ 1.64	$ 1.23
Diluted	$ 0.87	$ 0.65	$ 1.63	$ 1.22

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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