Fair Value of Financial Instruments (Schedule of Carrying Amounts and Estimated Fair Values of Financial Instruments) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Carrying amounts and estimated fair values of financial instruments:
Cash and due from banks, noninterest-bearing	$ 71,645	$ 53,285
Securities available for sale	199,329	165,614
Securities held to maturity (fair values of $130,195 in 2016 and $157,146 in 2015)	129,713	154,610
Total loans, net of allowance	2,686,931	2,490,343
Accrued interest receivable	9,286	9,166
FDIC Indemnification Asset		8,439	$ 22,569	$ 48,622
Bank-owned life insurance	74,138	72,086
Accrued interest payable	539	585
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
Federal funds sold	1	1
Securities available for sale	2	2
Securities held to maturity (fair values of $130,195 in 2016 and $157,146 in 2015)	2	2
Presold mortgages in process of settlement	1	1
Total loans, net of allowance	3	3
Accrued interest receivable	1	1
FDIC Indemnification Asset	3	3
Bank-owned life insurance	1	1
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	71,645	53,285
Due from banks, interest-bearing	234,348	213,426
Federal funds sold		557
Securities available for sale	199,329	165,614
Securities held to maturity (fair values of $130,195 in 2016 and $157,146 in 2015)	129,713	154,610
Presold mortgages in process of settlement	2,116	4,323
Total loans, net of allowance	2,686,931	2,490,343
Accrued interest receivable	9,286	9,166
FDIC Indemnification Asset		8,439
Bank-owned life insurance	74,138	72,086
Deposits	2,947,353	2,811,285
Borrowings	271,394	186,394
Accrued interest payable	539	585
Fair Value [Member]
Carrying amounts and estimated fair values of financial instruments:
Cash and due from banks, noninterest-bearing	71,645	53,285
Due from banks, interest-bearing	234,348	213,426
Federal funds sold		557
Securities available for sale	199,329	165,614
Securities held to maturity (fair values of $130,195 in 2016 and $157,146 in 2015)	130,195	157,146
Presold mortgages in process of settlement	2,116	4,323
Total loans, net of allowance	2,650,820	2,484,059
Accrued interest receivable	9,286	9,166
FDIC Indemnification Asset		8,256
Bank-owned life insurance	74,138	72,086
Deposits	2,944,968	2,809,828
Borrowings	263,255	178,468
Accrued interest payable	$ 539	$ 585

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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.

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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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Amount after other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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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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