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Loans, net and allowance for loan losses - Changes in Allowance for Loan Losses Account by Major Classification of Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Allowance for loan losses:
Beginning Balance	$ 28,383	$ 27,344
Charge-offs	(355)	(195)
Recoveries	79	134
Provisions (credits)	300	(500)
Ending balance	28,407	26,783
Commercial
Allowance for loan losses:
Beginning Balance	8,453	8,734
Charge-offs	(161)	(15)
Recoveries	9	61
Provisions (credits)	(708)	(565)
Ending balance	7,593	8,215
Real estate Commercial
Allowance for loan losses:
Beginning Balance	15,928	14,559
Charge-offs	(132)	(96)
Recoveries	16	58
Provisions (credits)	977	182
Ending balance	16,789	14,703
Real estate Residential
Allowance for loan losses:
Beginning Balance	3,209	3,129
Charge-offs		(22)
Recoveries	3	1
Provisions (credits)	43	(114)
Ending balance	3,255	2,994
Consumer
Allowance for loan losses:
Beginning Balance	793	922
Charge-offs	(62)	(62)
Recoveries	51	14
Provisions (credits)	(12)	(3)
Ending balance	$ 770	$ 871

X

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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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