LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Loan Portfolio by Type of Loan (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Loans held for investment:
Total loans	$ 2,014,061	$ 1,908,040
Deferred loan fees, net	(1,516)	(1,531)
Allowance for credit losses	(29,096)	(30,433)	$ (32,770)	$ (33,619)
Total net loans	1,983,449	1,876,076
Commercial and industrial
Loans held for investment:
Total loans	270,074	280,569
Allowance for credit losses	(3,750)	(3,600)	(3,529)	(4,033)
Construction and development
Loans held for investment:
Total loans	318,035	307,797
Allowance for credit losses	(3,898)	(4,221)	(4,198)	(4,735)
Commercial real estate
Loans held for investment:
Total loans	674,558	622,842
Allowance for credit losses	(12,197)	(13,765)	(16,109)	(15,780)
Farmland
Loans held for investment:
Total loans	186,982	145,501
Allowance for credit losses	(2,000)	(1,698)	(1,057)	(1,220)
1-4 family residential
Loans held for investment:
Total loans	430,755	410,673
Allowance for credit losses	(5,729)	(5,818)	(6,326)	(6,313)
Multi-family residential
Loans held for investment:
Total loans	42,021	30,971
Allowance for credit losses	(456)	(396)	(496)	(363)
Consumer
Loans held for investment:
Total loans	52,670	50,965
Allowance for credit losses	(907)	(762)	(843)	(929)
Agricultural
Loans held for investment:
Total loans	14,403	14,639
Allowance for credit losses	(156)	(169)	(208)	(239)
Warehouse lending
Loans held for investment:
Total loans	24,260	43,720
Overdrafts
Loans held for investment:
Total loans	303	363
Allowance for credit losses	$ (3)	$ (4)	$ (4)	$ (7)

Loans and leases receivable deferred fees net.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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