Loans and Allowance for Loan Losses - TDR Accrual Status (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2019	Dec. 31, 2018
Troubled debt restructurings (TDRs)
Recorded carrying value modified loans classified as TDR	$ 15,746	$ 19,169
Allowance for loan losses on loans classified as TDRs	827	599
Carrying value of modified loans classified as TDRs
Carrying value of modified loans classified as TDRs on accrual status	3,268	9,071
Carrying value of modified loans classified as TDRs on non-accrual status	12,478	10,098
Total carrying value of modified loans classified as TDRs	15,746	19,169
SBC
Troubled debt restructurings (TDRs)
Recorded carrying value modified loans classified as TDR	5,580	1,825
Allowance for loan losses on loans classified as TDRs	256	321
Carrying value of modified loans classified as TDRs
Carrying value of modified loans classified as TDRs on accrual status	880	1,696
Carrying value of modified loans classified as TDRs on non-accrual status	4,700	129
Total carrying value of modified loans classified as TDRs	5,580	1,825
SBA
Troubled debt restructurings (TDRs)
Recorded carrying value modified loans classified as TDR	10,166	17,344
Allowance for loan losses on loans classified as TDRs	571	278
Carrying value of modified loans classified as TDRs
Carrying value of modified loans classified as TDRs on accrual status	2,388	7,375
Carrying value of modified loans classified as TDRs on non-accrual status	7,778	9,969
Total carrying value of modified loans classified as TDRs	$ 10,166	$ 17,344

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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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No definition available.

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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
-Subparagraph (e)
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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
-Paragraph 4
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