Fair Value of Financial Instruments (Schedule of Carrying Amounts and Estimated Fair Values of Financial Instruments) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2015
Carrying amounts and estimated fair values of financial instruments:
Cash and due from banks, noninterest-bearing	$ 56,050	$ 114,301
Securities available for sale	501,351	343,270
Securities held to maturity	101,237	118,503
Total loans, net of allowance	4,228,025	4,019,071
Accrued interest receivable	16,004	14,094
FDIC Indemnification Asset			$ 8,439
Bank-owned life insurance	101,878	99,162
Accrued interest payable	1,976	1,235
Level in Fair Value Hierachy [Member]
Carrying amounts and estimated fair values of financial instruments:
Cash and due from banks, noninterest-bearing	1	1
Due from banks, interest-bearing	1	1
Securities available for sale	2	2
Securities held to maturity	2	2
Presold mortgages in process of settlement	1	1
Total loans, net of allowance	3	3
Accrued interest receivable	1	1
Bank-owned life insurance	1	1
SBA Servicing Asset	3	3
Deposits	2	2
Borrowings	2	2
Accrued interest payable	2	2
Carrying Amount [Member]
Carrying amounts and estimated fair values of financial instruments:
Cash and due from banks, noninterest-bearing	56,050	114,301
Due from banks, interest-bearing	406,848	375,189
Securities available for sale	501,351	343,270
Securities held to maturity	101,237	118,503
Presold mortgages in process of settlement	4,279	12,459
Total loans, net of allowance	4,228,025	4,019,071
Accrued interest receivable	16,004	14,094
Bank-owned life insurance	101,878	99,162
SBA Servicing Asset	4,419	1,987
Deposits	4,659,339	4,406,955
Borrowings	406,609	407,543
Accrued interest payable	1,976	1,235
Fair Value [Member]
Carrying amounts and estimated fair values of financial instruments:
Cash and due from banks, noninterest-bearing	56,050	114,301
Due from banks, interest-bearing	406,848	375,189
Securities available for sale	501,351	343,270
Securities held to maturity	99,906	118,998
Presold mortgages in process of settlement	4,279	12,459
Total loans, net of allowance	4,181,139	4,010,551
Accrued interest receivable	16,004	14,094
Bank-owned life insurance	101,878	99,162
SBA Servicing Asset	4,617	1,987
Deposits	4,653,522	4,401,757
Borrowings	402,556	397,903
Accrued interest payable	$ 1,976	$ 1,235

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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure.

+ References

No definition available.

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Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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The carrying amount of a life insurance policy on an officer, executive or employee for which the reporting entity (a bank) is entitled to proceeds from the policy upon death of the insured or surrender of the insurance policy.

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For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks.

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611

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- Definition

Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits.

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A bank's noninterest bearing demand deposits in other banks (such as correspondents).

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Carrying amount of receivable assets originating from the indemnification agreement with the Federal Deposit Insurance Corporation (FDIC), in which the FDIC is to partially cover losses.

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No definition available.

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Amount of investment in debt security measured at amortized cost (held-to-maturity).

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 1
-Subparagraph (b)
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Amount of interest payable on debt, including, but not limited to, trade payables.

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-Publisher FASB
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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums over and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes loans and leases covered under loss sharing agreements.

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Aggregate amount of servicing assets that are subsequently measured at fair value and servicing assets that are subsequently measured using the amortization method.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 50
-Section 45
-Paragraph 2
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