LOANS AND THE ALLOWANCE FOR LOAN LOSSES - Summary (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Activity in the allowance for loan losses
Allowance for loan losses at beginning of period	$ 26,087	$ 21,013	$ 22,299	$ 20,509
Provision for loan losses	3,573	1,806	7,928	2,582
Charge-offs	(160)	(966)	(1,381)	(1,499)
Recoveries	223	689	877	950
Allowance for loan losses at end of period	29,723	22,542	29,723	22,542
Commercial and industrial
Activity in the allowance for loan losses
Allowance for loan losses at beginning of period	4,224	3,762	4,441	3,748
Provision for loan losses	125	1,393	663	1,615
Charge-offs		(27)	(809)	(283)
Recoveries	7	59	61	107
Allowance for loan losses at end of period	4,356	5,187	4,356	5,187
Agricultural and farmland
Activity in the allowance for loan losses
Allowance for loan losses at beginning of period	2,993	3,248	2,766	2,650
Provision for loan losses	(103)	(356)	151	242
Charge-offs		(30)	(27)	(30)
Allowance for loan losses at end of period	2,890	2,862	2,890	2,862
Commercial real estate - owner occupied
Activity in the allowance for loan losses
Allowance for loan losses at beginning of period	2,122	2,353	1,779	2,506
Provision for loan losses	1,135	233	1,038	126
Charge-offs		(101)		(166)
Recoveries		2	440	21
Allowance for loan losses at end of period	3,257	2,487	3,257	2,487
Commercial real estate - non-owner occupied
Activity in the allowance for loan losses
Allowance for loan losses at beginning of period	4,432	2,722	3,663	2,644
Provision for loan losses	2,275	(7)	3,095	67
Charge-offs			(56)
Recoveries	60	6	65	10
Allowance for loan losses at end of period	6,767	2,721	6,767	2,721
Multi-family
Activity in the allowance for loan losses
Allowance for loan losses at beginning of period	1,474	972	1,024	912
Provision for loan losses	107	181	557	241
Allowance for loan losses at end of period	1,581	1,153	1,581	1,153
Construction and land development
Activity in the allowance for loan losses
Allowance for loan losses at beginning of period	3,223	3,897	2,977	4,176
Provision for loan losses	135	(587)	372	(877)
Charge-offs		(9)	(1)	(9)
Recoveries	8	422	18	433
Allowance for loan losses at end of period	3,366	3,723	3,366	3,723
One-to-four family residential
Activity in the allowance for loan losses
Allowance for loan losses at beginning of period	3,284	3,067	2,540	2,782
Provision for loan losses	(317)	1,022	460	1,233
Charge-offs	(8)	(602)	(112)	(639)
Recoveries	51	82	122	193
Allowance for loan losses at end of period	3,010	3,569	3,010	3,569
Municipal, consumer, and other
Activity in the allowance for loan losses
Allowance for loan losses at beginning of period	4,335	992	3,109	1,091
Provision for loan losses	216	(73)	1,592	(65)
Charge-offs	(152)	(197)	(376)	(372)
Recoveries	97	118	171	186
Allowance for loan losses at end of period	$ 4,496	$ 840	$ 4,496	$ 840

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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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 of expense related to estimated loss from loan and lease transactions.

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