Loans and Allowance for Loan Losses - TDR Accrual Status (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2020	Dec. 31, 2019
Troubled debt restructurings (TDRs)
Recorded carrying value modified loans classified as TDR	$ 23,429	$ 20,462
Allowance for loan losses on loans classified as TDRs	(3,387)	728
Carrying value of modified loans classified as TDRs
Carrying value of modified loans classified as TDRs on accrual status	6,952	7,770
Carrying value of modified loans classified as TDRs on non-accrual status	16,477	12,692
Total carrying value of modified loans classified as TDRs	23,429	20,462
SBC
Troubled debt restructurings (TDRs)
Recorded carrying value modified loans classified as TDR	10,344	6,258
Allowance for loan losses on loans classified as TDRs	215	274
Carrying value of modified loans classified as TDRs
Carrying value of modified loans classified as TDRs on accrual status	278	333
Carrying value of modified loans classified as TDRs on non-accrual status	10,066	5,925
Total carrying value of modified loans classified as TDRs	10,344	6,258
SBA
Troubled debt restructurings (TDRs)
Recorded carrying value modified loans classified as TDR	13,085	14,204
Allowance for loan losses on loans classified as TDRs	(3,602)	454
Carrying value of modified loans classified as TDRs
Carrying value of modified loans classified as TDRs on accrual status	6,674	7,437
Carrying value of modified loans classified as TDRs on non-accrual status	6,411	6,767
Total carrying value of modified loans classified as TDRs	$ 13,085	$ 14,204

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The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings and are accruing interest.

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The amount of the outstanding recorded investment related to financing receivables that have been modified by troubled debt restructurings and are not accruing interest.

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Amount of credit loss expense (reversal of expense) for financing receivable from change in methodology.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 11
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Amount of financing receivable modified as troubled debt restructuring.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524

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-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
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