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Fair Value Measurement and Fair Value of Financial Instruments (Carrying Amounts of Assets That Were Still Held and Had Fair Value Changes Measured on a Nonrecurring Basis) (Details) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	$ 175,069	$ 189,862
Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	170,339	186,225
Consumer lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	4,730	3,637
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Consumer lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0	0
Significant Other Observable Inputs (Level 2) | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0	0
Significant Other Observable Inputs (Level 2) | Consumer lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0	0
Significant Unobservable Inputs (Level 3)
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	175,069	189,862
Significant Unobservable Inputs (Level 3) | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	170,339	186,225
Significant Unobservable Inputs (Level 3) | Consumer lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	4,730	3,637
Investments in tax credit and other investments, net
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure		3,140
Investments in tax credit and other investments, net | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure		0
Investments in tax credit and other investments, net | Significant Other Observable Inputs (Level 2)
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure		0
Investments in tax credit and other investments, net | Significant Unobservable Inputs (Level 3)
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure		3,140
OREO
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure	14,914	15,824
OREO | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure	0	0
OREO | Significant Other Observable Inputs (Level 2)
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure	0	0
OREO | Significant Unobservable Inputs (Level 3)
Fair Value, Assets Measured on a Nonrecurring Basis
Assets, fair value disclosure	14,914	15,824
Commercial and industrial (“C&I”) | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	110,211	143,331
Commercial and industrial (“C&I”) | Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0	0
Commercial and industrial (“C&I”) | Significant Other Observable Inputs (Level 2) | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0	0
Commercial and industrial (“C&I”) | Significant Unobservable Inputs (Level 3) | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	110,211	143,331
Commercial real estate (“CRE”) | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	53,509	42,894
Commercial real estate (“CRE”) | Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0	0
Commercial real estate (“CRE”) | Significant Other Observable Inputs (Level 2) | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0	0
Commercial real estate (“CRE”) | Significant Unobservable Inputs (Level 3) | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	53,509	42,894
Multifamily residential | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	2,428
Multifamily residential | Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0
Multifamily residential | Significant Other Observable Inputs (Level 2) | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0
Multifamily residential | Significant Unobservable Inputs (Level 3) | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	2,428
Construction and land | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	4,191
Construction and land | Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0
Construction and land | Significant Other Observable Inputs (Level 2) | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0
Construction and land | Significant Unobservable Inputs (Level 3) | Commercial lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	4,191
Single Family Residential | Consumer lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	1,125
Single Family Residential | Quoted Prices in Active Markets for Identical Assets (Level 1) | Consumer lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0
Single Family Residential | Significant Other Observable Inputs (Level 2) | Consumer lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0
Single Family Residential | Significant Unobservable Inputs (Level 3) | Consumer lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	1,125
HELOCs | Consumer lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	3,605	1,146
HELOCs | Quoted Prices in Active Markets for Identical Assets (Level 1) | Consumer lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0	0
HELOCs | Significant Other Observable Inputs (Level 2) | Consumer lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	0	0
HELOCs | Significant Unobservable Inputs (Level 3) | Consumer lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure	$ 3,605	1,146
Other consumer | Consumer lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure		2,491
Other consumer | Quoted Prices in Active Markets for Identical Assets (Level 1) | Consumer lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure		0
Other consumer | Significant Other Observable Inputs (Level 2) | Consumer lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure		0
Other consumer | Significant Unobservable Inputs (Level 3) | Consumer lending
Fair Value, Assets Measured on a Nonrecurring Basis
Loans held-for-investment, fair value disclosure		$ 2,491

X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
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+ References

No definition available.

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- Definition

Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2196772

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