Represents the contractual balance of debt securities categorized neither as held-to-maturity nor trading.

No definition available.

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Represents the contractual balance of debt securities categorized neither as held-to-maturity nor trading, reduced by interest payments received, OTTI charges recorded through earnings to date, OTTI charges recorded in other comprehensive income.

+ References

No definition available.

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Represents the reference rate for the variable rate of discount rate used to calculate present value of expected future cash flows on available-for-sale securities, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

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- Definition

Rate of credit quality indicator pricing.

+ References

No definition available.

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- Definition

Net of tax amount of cumulative other than temporary impairment (OTTI) on a debt security, categorized as available-for-sale, recognized in other comprehensive income (loss), attributable to the parent entity.

+ References

No definition available.

+ Details

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- Definition

Cumulative interest received on loans and other debt instruments.

+ References

No definition available.

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- Definition

Represents the gain realized from the sale, exchange, redemption, or retirement of securities, not separately or otherwise categorized as trading, available-for-sale, or held-to-maturity.

+ References

No definition available.

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- Definition

Represents the loss realized from the sale, exchange, redemption, or retirement of securities, not separately or otherwise categorized as trading, available-for-sale, or held-to-maturity.

+ References

No definition available.

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- Definition

Represents the percentage of severity of other than temporarily impairment (OTTI) on investment securities.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

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- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

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- Definition

Amount of unrealized loss before deducting unrealized gain on investments in available-for-sale securities.

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-Publisher FASB

-Name Accounting Standards Codification

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An amount representing an agreement for an unconditional promise by the maker to pay the Entity (holder) a definite sum of money at a future date more than one year from the balance sheet date, net of any write-downs taken for collection uncertainty on the part of the holder. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale.

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-Publisher FASB

-Name Accounting Standards Codification

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-Name Regulation S-X (SX)

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This item represents an increase to the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security held for which a previous OTTI was recognized and the investor does not intend to sell the debt security and it is not more likely than not that the investor will be required to sell the debt security before recovery of its amortized cost basis.

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The cumulative amount of credit losses recognized in earnings related to debt securities held for which a portion of an other than temporary impairment (OTTI) was recognized in other comprehensive income (a component of shareholders' equity).

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Amount after tax of other than temporary impairment (OTTI) on investment in available-for-sale debt security, recognized in other comprehensive loss, attributable to parent entity.

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- Definition

The cash inflow associated with principal collections from a borrowing supported by a written promise to pay an obligation.

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

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Securities (Details Textual) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended				3 Months Ended	6 Months Ended		1 Months Ended
Securities (Details Textual) (USD $)	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2011	Jun. 30, 2012 Other-Than-Temporarily Impaired CDO	Jun. 30, 2012 Other-Than-Temporarily Impaired CDO	Jun. 30, 2013 Other-Than-Temporarily Impaired CDO	Jul. 31, 2013 Collateralized Debt Obligations [Member]	Jun. 30, 2013 Collateralized Debt Obligations [Member]	Jun. 30, 2013 Minimum [Member] Standard Poors [Member]	Jun. 30, 2013 Minimum [Member] Moody Investor Service [Member]	Jun. 30, 2013 Minimum [Member] Other-Than-Temporarily Impaired CDO	Jun. 30, 2013 Maximum [Member] Standard Poors [Member]	Jun. 30, 2013 Maximum [Member] Moody Investor Service [Member]	Jun. 30, 2013 Maximum [Member] Other-Than-Temporarily Impaired CDO
Gain on sale of investments	$ 3,000		$ 7,000	$ 664,000
Loss on sale of investments				4,000					11,000	11,000
Unrealized Losses			20,374,000		(8,234,000)
Contractual balance											26,900,000
Reduced balance											7,600,000
Interest payment received											1,200,000
Cumulative OTTI charges	14,983,000	14,983,000	14,983,000	14,983,000	14,983,000	14,983,000	15,180,000	15,180,000			14,900,000
Other comprehensive income net											3,200,000
Severity of OTTI (as a percent)																28.00%			92.00%
Base discount rate, which is subject to an additional margin			3 month LIBOR
Amortized Cost	835,536,000		835,536,000		668,615,000						646,000
Securities available-for-sale	837,047,000		837,047,000		691,000,000						583,000
Credit Quality Indicator Pricing														4.4	32		90.3	90.5
Amounts related to the credit loss for which other-than-temporary impairment was previously recognized		11,000
Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Loss, Net of Tax, Portion Attributable to Parent, Available-for-sale Securities			2,000,000
Payment received												1,300,000
CDO Payment receivable													$ 2,000,000