Amount of partial writeoff of financing receivable, charged against allowance for credit loss.

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The amount of specific reserve for financing receivable.

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Amount of writeoff of financing receivable, charged against allowance for credit loss that were originated from one employee and deemed impaired.

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Amount of writeoff of financing receivable, charged against allowance for credit loss net of recoveries.

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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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Amount of increase (decrease) in allowance for credit loss on financing receivable.

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

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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 writeoff of financing receivable, charged against allowance for credit loss.

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

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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								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Allowance for loan losses:
Beginning Balance				$ 22,677				$ 21,379	$ 22,677	$ 21,379	$ 18,960
Charge-offs									(3,479)	(5,067)	(2,354)
Recoveries									746	265	573
Provisions	$ 1,050	$ 1,050	$ 1,800	3,500	$ 4,000	$ 700	$ 350	1,050	7,400	6,100	4,200
Ending balance	27,344				22,677				27,344	22,677	21,379
Allowance for credit losses increase (decrease)									4,600
Write-offs net of recoveries									2,700
Commercial
Allowance for loan losses:
Beginning Balance				6,888				5,516	6,888	5,516	5,513
Charge-offs									(2,771)	(3,314)	(154)
Recoveries									525	69	137
Provisions									4,092	4,617	20
Ending balance	8,734				6,888				8,734	6,888	5,516
Partial write down									1,100
Charge-offs originated from one employee and deemed impaired										2,300
Loans receivable specific reserve					300					300
Commercial \| Small Business Line of Credit
Allowance for loan losses:
Charge-offs									(900)	(2,300)
Recoveries									200
Commercial \| Separate Credit
Allowance for loan losses:
Recoveries									200
Commercial \| Other Commercial Loans
Allowance for loan losses:
Charge-offs										(1,000)
Real estate Commercial
Allowance for loan losses:
Beginning Balance				11,496				10,736	11,496	10,736	8,944
Charge-offs									(144)	(817)	(1,250)
Recoveries									16	1	136
Provisions									3,191	1,576	2,906
Ending balance	14,559				11,496				14,559	11,496	10,736
Real estate Residential
Allowance for loan losses:
Beginning Balance				3,226				3,892	3,226	3,892	3,111
Charge-offs									(247)	(477)	(405)
Recoveries									57	29	98
Provisions									93	(218)	1,088
Ending balance	3,129				3,226				3,129	3,226	3,892
Consumer
Allowance for loan losses:
Beginning Balance				$ 1,067				$ 1,235	1,067	1,235	1,392
Charge-offs									(317)	(459)	(545)
Recoveries									148	166	202
Provisions									24	125	186
Ending balance	$ 922				$ 1,067				$ 922	$ 1,067	$ 1,235