CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interest
Beginning Balance at Dec. 31, 2020	$ 272,643	$ 12,952	$ 188,032	$ 113,449	$ (51,419)	$ 9,629
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	30,647			30,647
Other comprehensive income (loss)	(268)					(268)
10% stock dividend	35,947	1,094	34,853	(35,947)
Exercise of stock options	1,113	48	1,065
Restricted stock grants		4	(4)
Stock based compensation	512		512
Dividends: Common Stock	(7,239)			(7,239)
Ending Balance at Sep. 30, 2021	297,408	14,098	224,458	100,910	(51,419)	9,361
Beginning Balance at Jun. 30, 2021	287,729	14,074	223,822	94,073	(51,419)	7,179
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	9,253			9,253
Other comprehensive income (loss)	2,182					2,182
Exercise of stock options	477	20	457
Restricted stock grants		4	(4)
Stock based compensation	183		183
Dividends: Common Stock	(2,416)			(2,416)
Ending Balance at Sep. 30, 2021	297,408	14,098	224,458	100,910	(51,419)	9,361
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity attributable to Guaranty Bancshares, Inc.	302,214
Beginning Balance at Dec. 31, 2021	302,214	14,139	225,544	107,645	(51,419)	6,305
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	32,404			32,425			$ (21)
Other comprehensive income (loss)	(31,278)					(31,278)
Contributions from noncontrolling interest	598						598
10% stock dividend	0
Exercise of stock options	976	43	933
Purchase of treasury stock	(8,838)				(8,838)
Stock based compensation	485		485
Dividends: Common Stock	(7,900)			(7,900)
Ending Balance at Sep. 30, 2022	288,661	14,182	226,962	132,170	(60,257)	(24,973)	577
Beginning Balance at Jun. 30, 2022	282,835	14,160	226,318	123,888	(59,570)	(22,541)	580
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	10,900			10,903			(3)
Other comprehensive income (loss)	(2,432)					(2,432)
Exercise of stock options	502	22	480
Purchase of treasury stock	(687)				(687)
Stock based compensation	164		164
Dividends: Common Stock	(2,621)			(2,621)
Ending Balance at Sep. 30, 2022	288,661	$ 14,182	$ 226,962	$ 132,170	$ (60,257)	$ (24,973)	$ 577
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity attributable to Guaranty Bancshares, Inc.	$ 288,084