Fair Value Measurements (Carrying Amounts And Approximate Fair Values Of The Company's Financial Assets And Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	$ 49,818	$ 50,540
Federal funds sold	986	5,255
Available for sale securities, fair value	62,574	68,466
Loans held for sale	74,632
Loans held for investment, net of allowance	336,495	321,859
Interest rate derivative-assets	122
Accrued interest receivable	1,585	1,475
Cash flow hedge	318	8
Interest rate derivative-liabilities	131
Accrued interest payable	290	351
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	49,818	50,540
Federal funds sold	986	5,255
Available for sale securities, fair value	62,574	68,466
Loans held for sale	74,632
Loans held for investment, net of allowance	336,495	321,859
Interest rate derivative-assets	122
Accrued interest receivable	1,585	1,475
Cash flow hedge	318	8
Interest rate derivative-liabilities	131
Long-term borrowings	20,000	20,000
Deposits	448,144	375,007
Accrued interest payable	290	351
Estimated Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	49,818	50,540
Federal funds sold	986	5,255
Available for sale securities, fair value	62,574	68,466
Loans held for sale	74,632
Loans held for investment, net of allowance	335,876	323,294
Interest rate derivative-assets	122
Accrued interest receivable	1,585	1,475
Cash flow hedge	318	8
Interest rate derivative-liabilities	131
Long-term borrowings	20,000	20,000
Deposits	448,426	376,026
Accrued interest payable	290	351
Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and due from banks	49,818	50,540
Available for sale securities, fair value	3,079	4,154
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Federal funds sold	986	5,255
Available for sale securities, fair value	59,495	64,312
Loans held for sale	74,632
Interest rate derivative-assets	122
Accrued interest receivable	1,585	1,475
Cash flow hedge	318	8
Interest rate derivative-liabilities	131
Long-term borrowings	20,000	20,000
Deposits	448,426	376,026
Accrued interest payable	290	351
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for investment, net of allowance	$ 335,876	$ 323,294

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. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

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-Publisher FASB

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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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-Glossary Cash Equivalents

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Fair values as of the balance sheet date of all liabilities resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.

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- Definition

The amount outstanding of funds lent to other depository institutions, securities brokers, or securities dealers in the form of Federal Funds sold; for example, immediately available funds lent under agreements or contracts that mature in one business day or roll over under a continuing contract, regardless of the nature of the transaction or the collateral involved, excluding overnight lending for commercial and industrial purposes. Also include Federal Funds sold under agreements to resell on a gross basis, excluding (1) sales of term Federal Funds, (2) due bills representing purchases of securities or other assets by the reporting bank that have not yet been delivered and similar instruments, (3) resale agreements that mature in more than one business day involving assets other than securities, and (4) yield maintenance dollar repurchase agreements.

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Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid.

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Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets.

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Fair value as of the balance sheet date of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as liabilities.

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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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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Loans And Leases Receivable Held For Investment Net Of Allowance

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