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Loans and Allowance for Loan Losses - Changes in allowance (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Changes in the allowance
Beginning Balance	$ 21,246	$ 19,869	$ 22,174	$ 16,564
Provision for loan losses	1,498	1,530	5,515	7,080
Loan charge-offs	(375)	(570)	(5,943)	(3,536)
Loan recoveries	615	183	1,238	904
Ending Balance	22,984	21,012	22,984	21,012
Unallocated
Changes in the allowance
Beginning Balance	1,219	173	1,177	911
Provision for loan losses	2,420	350	2,462	(388)
Ending Balance	3,639	523	3,639	523
Commercial
Changes in the allowance
Beginning Balance	17,782	16,897	18,656	12,841
Provision for loan losses	(941)	1,271	2,692	7,617
Loan charge-offs	(324)	(424)	(5,276)	(3,138)
Loan recoveries	538	146	983	570
Ending Balance	17,055	17,890	17,055	17,890
Commercial | Commercial and industrial
Changes in the allowance
Beginning Balance	11,694	10,024	12,127	7,589
Provision for loan losses	(962)	1,452	3,263	6,158
Loan charge-offs	(324)	(424)	(5,275)	(3,078)
Loan recoveries	538	126	831	509
Ending Balance	10,946	11,178	10,946	11,178
Commercial | Real estate construction
Changes in the allowance
Beginning Balance	323	395	250	343
Provision for loan losses	25	(109)	97	1
Loan charge-offs			(1)	(60)
Loan recoveries			2	2
Ending Balance	348	286	348	286
Commercial | Commercial real estate
Changes in the allowance
Beginning Balance	5,765	6,478	6,279	4,909
Provision for loan losses	(4)	(72)	(668)	1,458
Loan recoveries		20	150	59
Ending Balance	5,761	6,426	5,761	6,426
Consumer
Changes in the allowance
Beginning Balance	2,245	2,799	2,341	2,812
Provision for loan losses	19	(91)	361	(149)
Loan charge-offs	(51)	(146)	(667)	(398)
Loan recoveries	77	37	255	334
Ending Balance	2,290	2,599	2,290	2,599
Consumer | Residential | Real estate first mortgage
Changes in the allowance
Beginning Balance	1,155	1,486	1,156	1,411
Provision for loan losses	(139)	(142)	(140)	(38)
Loan charge-offs				(29)
Ending Balance	1,016	1,344	1,016	1,344
Consumer | Residential | Real estate junior lien
Changes in the allowance
Beginning Balance	710	830	805	902
Provision for loan losses	157	20	113	(145)
Loan charge-offs	(20)	(47)	(154)	(133)
Loan recoveries	49	11	132	190
Ending Balance	896	814	896	814
Consumer | Other revolving and installment
Changes in the allowance
Beginning Balance	380	483	380	499
Provision for loan losses	1	31	388	34
Loan charge-offs	(31)	(99)	(513)	(236)
Loan recoveries	28	26	123	144
Ending Balance	$ 378	$ 441	$ 378	$ 441

X

- Definition

Amount of increase in allowance for credit loss on accounts receivable, from recovery.

+ References

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