The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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The balance of financing receivables that were collectively evaluated for impairment.

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The balance of financing receivables that were individually evaluated for impairment.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Allowance for Loan Losses and Reserve for Unfunded Loan Commitments - Allowance for Credit Losses on Basis of Impairment Method (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Jun. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018
Financing Receivable, Allowance for Credit Loss [Line Items]
Total	$ 22,237	$ 20,234	$ 16,395	$ 16,002	$ 15,965	$ 15,488
Total loans	1,607,099		1,412,029
SBA loans held for investment
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	233		41
Collectively evaluated for impairment	1,161		1,038
Total	1,394	1,004	1,079	1,167	1,321	1,655
Individually evaluated for impairment	2,634		1,105
Collectively evaluated for impairment	183,386		34,662
Total loans	186,020		35,767
Commercial loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	527		373
Collectively evaluated for impairment	12,773		9,349
Total	13,300	12,336	9,722	9,425	9,144	8,705
Individually evaluated for impairment	1,200		1,234
Collectively evaluated for impairment	798,373		763,798
Total loans	799,573		765,032
Residential mortgage loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	218
Collectively evaluated for impairment	5,706		4,254
Total	5,924	5,439	4,254	4,120	4,198	3,900
Individually evaluated for impairment	3,722
Collectively evaluated for impairment	469,698		467,706
Total loans	473,420		467,706
Consumer loans
Financing Receivable, Allowance for Credit Loss [Line Items]
Collectively evaluated for impairment	1,619		1,340
Total	1,619	$ 1,455	1,340	$ 1,290	$ 1,302	$ 1,228
Individually evaluated for impairment	1,293
Collectively evaluated for impairment	146,793		143,524
Total loans	148,086		143,524
Total
Financing Receivable, Allowance for Credit Loss [Line Items]
Individually evaluated for impairment	978		414
Collectively evaluated for impairment	21,259		15,981
Total	22,237		16,395
Individually evaluated for impairment	8,849		2,339
Collectively evaluated for impairment	1,598,250		1,409,690
Total loans	$ 1,607,099		$ 1,412,029