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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Loans Individually Evaluated for Impairment by Class of Loans (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Unpaid Principal Balance
Total	$ 62,742		$ 49,814
Recorded Investment
Total	62,446		49,708
Allowance for Loan and Lease Losses	5,814		5,990
Average Recorded Investment	61,200	$ 32,156
Interest Income Recognized	81	65
Cash Basis Interest Recognized	72	56
Commercial | Commercial and industrial
Unpaid Principal Balance
With no related allowance recorded	6,332		1,471
With an allowance recorded	18,268		18,776
Recorded Investment
With no related allowance recorded	6,319		1,460
With an allowance recorded	18,275		18,776
Allowance for Loan and Lease Losses	3,606		3,367
Average Recorded Investment	22,912	5,048
Interest Income Recognized	21	0
Cash Basis Interest Recognized	21	0
Commercial | Commercial real estate
Unpaid Principal Balance
With no related allowance recorded	2,968		0
Recorded Investment
With no related allowance recorded	2,763		0
Average Recorded Investment	2,774	577
Interest Income Recognized	0	0
Cash Basis Interest Recognized	0	0
Commercial | SBA
Unpaid Principal Balance
With no related allowance recorded	1,489		1,439
With an allowance recorded	4,050		3,921
Recorded Investment
With no related allowance recorded	1,426		1,379
With an allowance recorded	3,866		3,757
Allowance for Loan and Lease Losses	2,208		2,045
Average Recorded Investment	5,414	3,845
Interest Income Recognized	3	4
Cash Basis Interest Recognized	3	4
Commercial | Construction
Recorded Investment
Average Recorded Investment		2,519
Interest Income Recognized		0
Cash Basis Interest Recognized		0
Consumer | Single family residential mortgage
Unpaid Principal Balance
With no related allowance recorded	29,024		19,319
With an allowance recorded	0		4,213
Recorded Investment
With no related allowance recorded	29,183		19,405
With an allowance recorded	0		4,252
Allowance for Loan and Lease Losses	0		574
Average Recorded Investment	29,483	19,323
Interest Income Recognized	54	58
Cash Basis Interest Recognized	45	49
Consumer | Other consumer
Unpaid Principal Balance
With no related allowance recorded	611		671
With an allowance recorded	0		4
Recorded Investment
With no related allowance recorded	614		675
With an allowance recorded	0		4
Allowance for Loan and Lease Losses	0		$ 4
Average Recorded Investment	617	844
Interest Income Recognized	3	3
Cash Basis Interest Recognized	$ 3	$ 3

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

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