Fair Value (Details 4) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Carrying Amounts
Assets
Cash and cash equivalents	$ 85,762	$ 373,565
Securities available-for-sale	293,778	367,912
Securities held-to-maturity	81,731	51,472
Loans (including loans held-for-sale), net	828,929	796,695
FHLB and FRB stock	10,871	10,728
Accrued interest receivable	4,138	3,773
Loan servicing rights and I/O strips receivables	2,357	2,495
Liabilities
Time deposits	306,214	318,664
Other deposits	882,825	1,160,704
Subordinated debt	9,279	9,279
Accrued interest payable	234	277
Estimated Fair Value
Assets
Cash and cash equivalents	85,762	373,565
Securities available-for-sale	293,778	367,912
Securities held-to-maturity	72,772	50,964
Loans (including loans held-for-sale), net	827,374	797,320
Accrued interest receivable	4,138	3,773
Loan servicing rights and I/O strips receivables	4,474	4,715
Liabilities
Time deposits	306,834	319,476
Other deposits	882,825	1,160,704
Subordinated debt	5,670	5,400
Accrued interest payable	234	277
Estimated Fair Value \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Assets
Cash and cash equivalents	85,762	373,565
Estimated Fair Value \| Significant Other Observable Inputs (Level 2)
Assets
Securities available-for-sale	293,778	367,912
Securities held-to-maturity	72,772	50,964
Loans (including loans held-for-sale), net	6,321	3,409
Accrued interest receivable	1,552	1,514
Loan servicing rights and I/O strips receivables	4,474	4,715
Liabilities
Time deposits	306,834	319,476
Other deposits	882,825	1,160,704
Accrued interest payable	234	277
Estimated Fair Value \| Significant Unobservable Inputs (Level 3)
Assets
Loans (including loans held-for-sale), net	821,053	793,911
Accrued interest receivable	2,586	2,259
Liabilities
Subordinated debt	$ 5,670	$ 5,400

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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 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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Amount of subordinated debt obligations (also known as subordinated loan, subordinated bond, subordinated debenture or junior debt) which has a priority ranking after other debts in a dissolution, measured at fair value.

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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 aggregate value of all restricted investments.

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Amount of deposits that cannot be withdrawn before a set date without penalty or for which notice of withdrawal is required. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.

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