Number of institutions issuing debt.

No definition available.

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- Definition

Number of securities representing interests in tranches of trusts.

+ References

No definition available.

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- Definition

Number of Securities, Return to Accrual Status

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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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
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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.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.2)
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- Definition

This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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The total amount of proceeds received for the sale of securities, categorized neither as held-to-maturity nor trading securities, during the reporting period.

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- Definition

The fair value of available-for-sale securities that serve as collateral for borrowings.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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Amount of loss realized on the sale of debt or equity securities classified as available-for-sale. Excludes other than temporary impairments (OTTI).

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No definition available.

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This element represents the amount of loss recognized for other than temporary impairments (OTTI) of investments in debt and equity securities.

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-Name Accounting Standards Codification
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Securities - (Details Textual)	3 Months Ended				6 Months Ended
Securities - (Details Textual)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Jun. 30, 2015 USD ($) security	Jun. 30, 2014 security	Jun. 30, 2016 USD ($) security institution	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 670,172,000				$ 670,172,000
Gross gains on sales of securities available for sale	1,257,000		$ 96,000		$ 1,257,000	$ 96,000
Number of securities, return to accrual status \| security			1	1	1
Securities available for sale	674,447,000				$ 674,447,000		$ 646,805,000
Number of securities representing interests in tranches of trusts (tranches) \| security					3
Number of institutions issuing debt \| institution					250
Trust preferred securities
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	24,675,000				$ 24,675,000		24,770,000
Securities available for sale	18,179,000				18,179,000		19,469,000
Impairments					0
Secure government, public and trust deposits
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities pledged as collateral	681,940,000				681,940,000		679,492,000
Short-term borrowings
Schedule of Available-for-sale Securities [Line Items]
Available for sale securities pledged as collateral	35,124,000				35,124,000		39,275,000
Other equity securities
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	2,767,000	$ 75,000			2,767,000
Sale proceeds	4,024,000	4,000
Gross gains on sales of securities available for sale	1,257,000
Gross loss on sales of securities available for sale		$ 71,000
Securities available for sale	0				0		4,340,000
Trust preferred securities
Schedule of Available-for-sale Securities [Line Items]
Securities available for sale	$ 18,179,000				$ 18,179,000		$ 19,469,000
Trust preferred securities \| Pooled Trust Preferred Securities Xiii
Schedule of Available-for-sale Securities [Line Items]
Amortized cost			$ 1,117,000			$ 1,117,000
Sale proceeds			1,213,000
Gross gains on sales of securities available for sale			$ 96,000