Fair Value (Carrying Amounts and Estimated Fair Value for Financial Instrument Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Readily Available Market Prices (Level 1) [Member]
Financial assets:
Cash and due from banks	$ 58,290
Securities available for sale
FHLB and Federal Reserve Bank stock	21,034
Trading account assets	2,300
Loans receivable, net of allowance
Mortgage servicing rights
Interest receivable
Investment in CCTA and UBCT
Customer interest rate swap agreement
Financial liabilities:
Deposits	1,339,290
FHLB advances
Commercial repurchase agreements
Other borrowed funds	193,753
Junior subordinated debentures
Interest payable	905
Interest rate swap agreements
Observable Market Data (Level 2) [Member]
Financial assets:
Cash and due from banks
Securities available for sale	781,050
FHLB and Federal Reserve Bank stock
Trading account assets
Loans receivable, net of allowance
Mortgage servicing rights	879
Interest receivable	6,215
Investment in CCTA and UBCT
Customer interest rate swap agreement	496
Financial liabilities:
Deposits	597,156
FHLB advances	60,813
Commercial repurchase agreements	69,067
Other borrowed funds
Junior subordinated debentures	43,819
Interest payable
Interest rate swap agreements	11,580
Company Determined Fair Value (Level 3) [Member]
Financial assets:
Cash and due from banks
Securities available for sale
FHLB and Federal Reserve Bank stock
Trading account assets
Loans receivable, net of allowance	1,557,320
Mortgage servicing rights
Interest receivable
Investment in CCTA and UBCT	1,331
Customer interest rate swap agreement
Financial liabilities:
Deposits
FHLB advances
Commercial repurchase agreements
Other borrowed funds
Junior subordinated debentures
Interest payable
Interest rate swap agreements
Carrying Amount [Member]
Financial assets:
Cash and due from banks	58,290	39,325
Securities available for sale	781,050	590,036
FHLB and Federal Reserve Bank stock	21,034	21,962
Trading account assets	2,300	2,244
Loans held for sale		6,061
Loans receivable, net of allowance	1,540,822	1,491,017
Mortgage servicing rights	542	768
Interest receivable	6,215	6,431
Investment in CCTA and UBCT	1,331	1,331
Customer interest rate swap agreement	496	211
Financial liabilities:
Deposits	1,929,469	1,591,366
FHLB advances	56,404	136,860
Commercial repurchase agreements	66,187	71,243
Other borrowed funds	193,753	204,413
Junior subordinated debentures	43,819	43,717
Interest payable	905	1,093
Interest rate swap agreements	11,580	11,387
Fair Value [Member]
Financial assets:
Cash and due from banks	58,290	39,325
Securities available for sale	781,050	590,036
FHLB and Federal Reserve Bank stock	21,034	21,962
Trading account assets	2,300	2,244
Loans held for sale		6,268
Loans receivable, net of allowance	1,557,320	1,510,277
Mortgage servicing rights	879	1,138
Interest receivable	6,215	6,431
Investment in CCTA and UBCT	1,331	1,331
Customer interest rate swap agreement	496	211
Financial liabilities:
Deposits	1,936,446	1,600,222
FHLB advances	60,813	143,642
Commercial repurchase agreements	69,067	75,342
Other borrowed funds	193,753	204,413
Junior subordinated debentures	43,819	43,717
Interest payable	905	1,093
Interest rate swap agreements	$ 11,580	$ 11,387

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Interest Payable, Fair Value Disclosure

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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. 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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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 includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months.

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Fair values as of the balance sheet date of all assets 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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Derivative instrument obligations meeting the definition of a liability which the Company is a party to as of the balance sheet date.

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Total investments in (A) an entity in which the company has significant influence, but does not have control, (B) subsidiaries that are not required to be consolidated and are accounted for using the equity and or cost method. Investments in an entity that is affiliated with the reporting entity by means of direct or indirect ownership, (C) an entity in which the reporting entity shares control of the entity with another party or group, and (D) an entity in which the company has significant influence, but does not have control.

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-Publisher FASB

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Fair value as of the balance sheet date of an asset representing net future revenues from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

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-Name Regulation S-X (SX)

-Number 210

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-Article 9

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