LOANS AND ALLOWANCE FOR CREDIT LOSSES - Loans Individually Evaluated for Impairment by Class of Loans (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Unpaid Principal Balance
Total	$ 72,408		$ 72,408		$ 49,814
Recorded Investment
Total	71,504		71,504		49,708
Allowance for Loan and Lease Losses	13,762		13,762		5,990
Average Recorded Investment	67,076	$ 52,514	68,030	$ 44,518
Interest Income Recognized	85	106	241	492
Cash Basis Interest Recognized	34	93	162	458
Commercial \| Commercial and industrial
Unpaid Principal Balance
With no related allowance recorded	11,533		11,533		1,471
With an allowance recorded	17,020		17,020		18,776
Recorded Investment
With no related allowance recorded	11,460		11,460		1,460
With an allowance recorded	17,015		17,015		18,776
Allowance for Loan and Lease Losses	11,162		11,162		3,367
Average Recorded Investment	22,016	22,619	24,973	16,154
Interest Income Recognized	10	40	47	295
Cash Basis Interest Recognized	11	32	50	286
Commercial \| Commercial real estate
Unpaid Principal Balance
With no related allowance recorded	6,741		6,741		0
Recorded Investment
With no related allowance recorded	6,471		6,471		0
Average Recorded Investment	6,593	0	4,859	193
Interest Income Recognized	0	0	0	0
Cash Basis Interest Recognized	0	0	0	0
Commercial \| SBA
Unpaid Principal Balance
With no related allowance recorded	1,622		1,622		1,439
With an allowance recorded	3,482		3,482		3,921
Recorded Investment
With no related allowance recorded	1,566		1,566		1,379
With an allowance recorded	3,299		3,299		3,757
Allowance for Loan and Lease Losses	2,409		2,409		2,045
Average Recorded Investment	5,235	5,843	5,274	4,328
Interest Income Recognized	3	4	9	12
Cash Basis Interest Recognized	3	4	10	12
Commercial \| Construction
Recorded Investment
Average Recorded Investment		2,519		2,519
Interest Income Recognized		0		0
Cash Basis Interest Recognized		0		0
Consumer \| Single family residential mortgage
Unpaid Principal Balance
With no related allowance recorded	29,048		29,048		19,319
With an allowance recorded	1,869		1,869		4,213
Recorded Investment
With no related allowance recorded	29,174		29,174		19,405
With an allowance recorded	1,881		1,881		4,252
Allowance for Loan and Lease Losses	191		191		574
Average Recorded Investment	31,457	20,706	31,432	20,374
Interest Income Recognized	72	59	182	175
Cash Basis Interest Recognized	20	53	99	150
Consumer \| Other consumer
Unpaid Principal Balance
With no related allowance recorded	1,093		1,093		671
With an allowance recorded	0		0		4
Recorded Investment
With no related allowance recorded	638		638		675
With an allowance recorded	0		0		4
Allowance for Loan and Lease Losses	0		0		$ 4
Average Recorded Investment	1,775	827	1,492	950
Interest Income Recognized	0	3	3	10
Cash Basis Interest Recognized	$ 0	$ 4	$ 3	$ 10

Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5212-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5258-111524

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