ConnectOne Bancorp (CNOB) 10-Q 8 May 15 2015 Q1 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	3 Months Ended
	Mar. 31, 2015	8-May-15
Document and Entity Information [Abstract]
Entity Registrant Name	ConnectOne Bancorp, Inc.
Document Type	10-Q
Current Fiscal Year End Date	-19
Entity Common Stock, Shares Outstanding		29,896,501
Amendment Flag	FALSE
Entity Central Index Key	712771
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1

CONSOLIDATED_STATEMENTS_OF_CON

CONSOLIDATED STATEMENTS OF CONDITION (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
ASSETS
Cash and due from banks	$30,127	$31,813
Interest-bearing deposits with banks	58,416	95,034
Cash and cash equivalents	88,543	126,847
Investment securities:
Available-for-sale	276,121	289,532
Held-to-maturity (fair value of $240,263 and $231,445)	231,720	224,682
Loans held for sale	1,392
Loans receivable	2,640,739	2,538,641
Less: Allowance for loan and lease losses	15,933	14,160
Net loans receivable	2,624,806	2,524,481
Investment in restricted stock, at cost	24,874	23,535
Bank premises and equipment, net	20,358	20,653
Accrued interest receivable	11,513	11,700
Bank-owned life insurance	52,904	52,518
Other real estate owned	870	1,108
Goodwill	145,909	145,909
Core deposit intangibles	4,584	4,825
Other assets	22,297	22,782
Total assets	3,505,891	3,448,572
Deposits:
Noninterest-bearing	479,652	492,515
Interest-bearing	2,016,359	1,983,092
Total deposits	2,496,011	2,475,607
Borrowings	525,148	495,553
Subordinated debentures	5,155	5,155
Other liabilities	23,383	26,038
Total liabilities	3,049,697	3,002,353
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS’ EQUITY
Preferred stock, $1,000 liquidation value per share, authorized 5,000,000 shares; issued and outstanding 11,250 shares of Series B preferred stock at March 31, 2015 and December 31, 2014; total liquidation value of $11,250 at March 31, 2015 and December 31, 2014	11,250	11,250
Common stock, no par value, authorized 50,000,000 shares; issued 31,928,524 shares at March 31, 2015 and 31,758,558 at December 31, 2014; outstanding 29,864,602 shares at March 31, 2015 and 29,694,636 at December 31, 2014	374,287	374,287
Additional paid-in capital	7,084	6,015
Retained earnings	80,526	72,398
Treasury stock, at cost (2,063,922 common shares at March 31, 2015 and December 31, 2014)	-16,717	-16,717
Accumulated other comprehensive loss	-236	-1,014
Total stockholders’ equity	456,194	446,219
Total liabilities and stockholders’ equity	$3,505,891	$3,448,572

CONSOLIDATED_STATEMENTS_OF_CON1

CONSOLIDATED STATEMENTS OF CONDITION (Parentheticals) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, except Share data, unless otherwise specified
Held-to-maturity, fair value (in Dollars)	$240,263	$231,445
Preferred stock, liquidation value (in Dollars per share)	$1,000	$1,000
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred Stock, total liquidation value (in Dollars)	$11,250	$11,250
Common stock, par value (in Dollars per share)
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	31,928,524	31,758,558
Common stock, shares outstanding	29,864,602	29,694,636
Treasury Stock, Shares	2,063,922	2,063,922
Series B Preferred Stock [Member]
Preferred stock, shares issued	11,250	11,250
Preferred stock, shares outstanding	11,250	11,250

CONSOLIDATED_STATEMENTS_OF_INC

CONSOLIDATED STATEMENTS OF INCOME (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Interest income
Interest and fees on loans	$29,314	$10,111
Interest and dividends on investment securities:
Taxable	2,910	3,057
Tax-exempt	883	1,056
Dividends	220	113
Interest on federal funds sold and other short-term investments	43
Total interest income	33,370	14,337
Interest expense
Deposits	3,025	1,316
Borrowings	2,053	1,411
Total interest expense	5,078	2,727
Net interest income	28,292	11,610
Provision for loan and lease losses	1,825	625
Net interest income after provision for loan and lease losses	26,467	10,985
Noninterest income
Annuities and insurance commissions	86	100
Bank-owned life insurance	386	255
Net gains on sale of loans held for sale	114	36
Deposit, loan and other income	463	715
Net gains on sale of investment securities	506	1,415
Total other income	1,555	2,521
Noninterest expense
Salaries and employee benefits	6,628	3,332
Occupancy and equipment	2,082	1,080
FDIC insurance	560	300
Professional and consulting	494	255
Marketing and advertising	194	40
Data processing	900	345
Merger expenses		1,060
Amortization of core deposit intangible	241	6
Other expenses	1,532	1,078
Total other expense	12,631	7,496
Income before income tax expense	15,391	6,010
Income tax expense	5,012	1,612
Net Income	10,379	4,398
Less: Preferred stock dividends	28	28
Net income available to common stockholders	$10,351	$4,370
Earnings per common share
Basic (in Dollars per share)	$0.35	$0.27
Diluted (in Dollars per share)	$0.34	$0.27
Weighted average common shares outstanding
Basic (in Shares)	29,757,316	16,350,183
Diluted (in Shares)	30,149,469	16,405,540
Dividends per common share (in Dollars per share)	$0.08	$0.08

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Net income	$10,379	$4,398
Unrealized gains and losses on securities available-for-sale:
Unrealized holding gains on available-for-sale securities	1,509	3,516
Tax effect	-595	-1,190
Net of tax amount	914	2,326
Reclassification adjustment for realized gains arising during period	-506	-1,415
Tax effect	207	380
Net of tax amount	-299	-1,035
Amortization of unrealized losses holding gains on held-to-maturity securities transferred from available-for-sale securities	65	45
Tax effect	-25	-20
Net of tax amount	40	25
Unrealized losses on cash flow hedge	-534
Tax effect	218
Net of tax amount	-316
Unrealized pension plan gains	742	1,281
Tax effect	-303	-523
Net of tax amount	439	758
Total other comprehensive income	778	2,074
Total comprehensive income	$11,157	$6,472

CONSOLIDATED_STATEMENTS_OF_CHA

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (USD $)	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Total
In Thousands
Balance at Dec. 31, 2013	$11,250	$110,056	$4,986	$61,914	($17,078)	($2,544)	$168,584
Net income				18,565			18,565
Other comprehensive income, net of taxes						1,530	1,530
Dividends on series B preferred stock				-112			-112
Issuance cost of common stock				-7			-7
Cash dividends declared on common stock				-7,962			-7,962
Exercise of stock options			806		361		1,167
Stock issued (13,221,152 shares) and options acquired (783,732 shares) in acquisition of Legacy ConnectOne		264,231					264,231
Stock-based compensation expense			223				223
Balance at Dec. 31, 2014	11,250	374,287	6,015	72,398	-16,717	-1,014	446,219
Net income				10,379			10,379
Other comprehensive income, net of taxes						778	778
Dividends on series B preferred stock				-28			-28
Cash dividends declared on common stock				-2,223			-2,223
Exercise of stock options			590				590
Granted 59,466 shares of restricted stock
Stock-based compensation expense			479				479
Balance at Mar. 31, 2015	$11,250	$374,287	$7,084	$80,526	($16,717)	($236)	$456,194

CONSOLIDATED_STATEMENTS_OF_CHA1

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parentheticals) (USD $)	3 Months Ended	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Cash dividends declared on common stock (in Dollars per share)	$0.08	$0.30
Exercise of stock options, shares	110,500	100,911
Exercise of stock options, tax benefits (in Dollars)	$165	$282
Stock issued in acquisition		13,221,152
Options acquired acquisition		783,732
Granted restricted stock	59,466
Common Stock [Member]
Stock issued in acquisition		13,221,152
Options acquired acquisition		783,732
Additional Paid-in Capital [Member]
Exercise of stock options, shares	110,500	100,911
Exercise of stock options, tax benefits (in Dollars)	165	282
Retained Earnings [Member]
Cash dividends declared on common stock (in Dollars per share)	$0.08	$0.30
Treasury Stock [Member]
Exercise of stock options, shares	110,500	100,911
Exercise of stock options, tax benefits (in Dollars)		$282

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities
Net income	$10,379	$4,398
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,040	204
Provision for loan and lease losses	1,825	625
Stock-based compensation (excluding tax benefit)	479	16
Gains on sales of investment securities, net	-506	-1,415
Gains on sale of loans held for sale	-114	-36
Loans originated for resale	-8,468	-2,168
Proceeds from sale of loans held for sale	7,190	2,204
Net loss on sale of other real estate owned	112
Increase in cash surrender value of bank-owned life insurance	-386	-255
Amortization of premiums and accretion of discounts on investments securities, net	518	536
Decrease in accrued interest receivable	187	461
(Increase) decrease in other assets	-49	1,588
Decrease in other liabilities	-2,388	-31
Net cash provided by operating activities	9,819	6,127
Investment securities available-for-sale:
Purchases	-1,543	-10,397
Sales	9,537	50,611
Maturities, calls and principal repayments	6,673	6,999
Investment securities held-to-maturity:
Purchases	-9,986
Maturities and principal repayments	2,749	890
Net purchases of restricted investment in bank stocks	-1,339
Net increase in loans	-102,150	-26,911
Purchases of premises and equipment	-504	-350
Proceeds from sale of other real estate owned	126
Net cash (used in) provided by investing activities	-96,437	20,842
Cash flows from financing activities
Net increase (decrease) in deposits	20,404	-2,120
Net increase in borrowings	29,595
Cash dividends paid on preferred stock	-28	-28
Cash dividends paid on common stock	-2,247	-1,228
Issuance cost of common stock		-3
Proceeds from exercise of stock options	590
Net cash provided by (used in) financing activities	48,314	-3,379
Net change in cash and cash equivalents	-38,304	23,590
Cash and cash equivalents at beginning of period	126,847	82,692
Cash and cash equivalents at end of period	88,543	106,282
Cash payments for:
Interest paid on deposits and borrowings	4,724	2,723
Income taxes	$5,500	$500

Nature_of_Operations_and_Princ

Nature of Operations and Principles of Consolidation	3 Months Ended
	Mar. 31, 2015
Disclosure Text Block [Abstract]
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	Note 1. Nature of Operations and Principles of Consolidation
	The consolidated financial statements of ConnectOne Bancorp, Inc. (the “Parent Corporation”) are prepared on an accrual basis and include the accounts of the Parent Corporation and its wholly-owned subsidiary, ConnectOne Bank (the “Bank” and, collectively with the Parent Corporation and the Parent Corporation’s other direct and indirect subsidiaries, the “Company”). All significant intercompany accounts and transactions have been eliminated from the accompanying consolidated financial statements.
	The Bank is a community-based, full-service New Jersey-chartered commercial bank that was founded in 2005. The Bank operates from its headquarters located at 301 Sylvan Avenue in the Borough of Englewood Cliffs, Bergen County, New Jersey and through its twenty-three other banking offices. Substantially all loans are secured by specific items of collateral including business assets, consumer assets, and commercial and residential real estate. Commercial loans are expected to be repaid from cash flow from business operations. There are no significant concentrations of loans to any one industry or client. However, the clients’ ability to repay their loans is dependent on the cash flows, real estate and general economic conditions in the area.
	The following unaudited consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X, and, accordingly, do not include all of the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements. However, in the opinion of management, all adjustments (consisting only of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three months ended March 31, 2015 are not necessarily indicative of the results that may be expected for the full year ending December 31, 2015, or for any other interim period. The Company’s 2014 Annual Report on Form 10-K, should be read in conjunction with these financial statements.
	In preparing the consolidated financial statements, management has made estimates and assumptions that affect the reported amounts of assets and liabilities as of the dates of the consolidated statements of condition and that affect the results of operations for the periods presented. Actual results could differ significantly from those estimates. Material estimates that are particularly susceptible to change in the near term relate to the determination of the allowance for loan and lease losses, the other-than-temporary impairment evaluation of securities, the evaluation of the impairment of goodwill and the evaluation of deferred tax assets.
	The consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”). Some items in the prior year financial statements were reclassified to conform to current presentation. Reclassifications had no effect on prior year net income for stockholders’ equity.

Business_Combinations

Business Combinations	3 Months Ended
	Mar. 31, 2015
Business Combinations [Abstract]
Business Combination Disclosure [Text Block]	Note 2. Business Combinations
	On January 20, 2014, the Parent Corporation entered into an Agreement and Plan of Merger (the “Merger Agreement”) with ConnectOne Bancorp, Inc., a New Jersey Company (“Legacy ConnectOne”). Effective July 1, 2014 (the “Effective Time”), the Parent Corporation completed the merger contemplated by the Merger Agreement (the “Merger”) with Legacy ConnectOne. At closing, Legacy ConnectOne merged with and into the Parent Corporation, with the Parent Corporation as the surviving Company. Also at closing, the Parent Corporation changed its name from “Center Bancorp, Inc.” to “ConnectOne Bancorp, Inc.” and changed its NASDAQ trading symbol to “CNOB” from “CNBC.”
	Pursuant to the Merger Agreement, holders of Legacy ConnectOne common stock, no par value per share (the “Legacy ConnectOne Common Stock”), received 2.6 shares of common stock of the Parent Corporation, no par value per share (the “Company Common Stock”), for each share of Legacy ConnectOne Common Stock held immediately prior to the effective time of the Merger, with cash to be paid in lieu of fractional shares. Each outstanding share of Company Common Stock remained outstanding and was unaffected by the Merger. Each option granted by Legacy ConnectOne to purchase shares of Legacy ConnectOne Common Stock was converted into an option to purchase Company Common Stock on the same terms and conditions as were applicable prior to the Merger (taking into account any acceleration or vesting by reason of the consummation of the Merger and its related transactions), subject to adjustment of the exercise price and the number of shares of Company Common Stock issuable upon exercise of such option based on the 2.6 exchange ratio.
	Immediately following the Merger, Union Center National Bank, a bank organized pursuant to the laws of the United States, and a wholly owned subsidiary of the Parent Corporation (“UNCB”), merged (the “Bank Merger”) with and into ConnectOne Bank, a New Jersey state-chartered commercial bank and a wholly owned subsidiary of Legacy ConnectOne, with ConnectOne Bank as the surviving entity (the “Bank”). The Bank now conducts business only in the name of and under the brand of ConnectOne.
	The assets acquired and liabilities assumed have been accounted for under the acquisition method of accounting. The assets and liabilities, both tangible and intangible, were recorded at their fair values as of July 1, 2014 based on management’s best estimate using the information available as of the Merger date. The application of the acquisition method of accounting resulted in the recognition of goodwill of $129,105,000 and a core deposit intangible of $5,308,000. As of July 1, 2014, Legacy ConnectOne had assets with a carrying value of approximately $1.5 billion, including loans with a carrying value of approximately $1.2 billion, and deposits with a carrying value of approximately $1.1 billion. The table below summarizes the amounts recognized as of the Merger date for each major class of assets acquired and liabilities assumed, the estimated fair value adjustments and the amounts recorded in the Company’s financial statements at fair value at the Merger date (in thousands):
	Consideration paid through Parent Corporation common stock issued to Legacy ConnectOne shareholders and fair value of stock options acceleration was: $ 264,231
			Legacy			Fair value				As recorded
			ConnectOne			adjustments				at
			carrying value							acquisition
	Cash and cash equivalents		$	70,318		$	—			$	70,318
	Investment securities			28,436			16		(a)		28,452
	Restricted stock			13,646			—				13,646
	Loans held for sale			190			—				190
	Loans			1,304,600			(5,316	)	(b)		1,299,284
	Bank owned life insurance			15,481			—				15,481
	Premises and equipment			7,380			(905	)	(c)		6,475
	Accrued interest receivable			4,470			—				4,470
	Core deposit and other intangibles			—			5,308		(d)		5,308
	Other real estate owned			2,455			—				2,455
	Other assets			10,636			3,650		(e)		14,286
	Deposits			(1,049,666	)		(1,676	)	(f)		(1,051,342	)
	FHLB borrowings			(262,046	)		(1,324	)	(g)		(263,370	)
	Other liabilities			(10,527	)		—				(10,527	)
	Total identifiable net assets		$	135,373		$	(247	)		$	135,126
	Goodwill recorded in the Merger									$	129,105
	The following provides an explanation of certain fair value adjustments presented in the above table:
		a)	Represents the fair value adjustment on investment securities held to maturity.
		b)	Represents the elimination of Legacy ConnectOne’s allowance for loan and lease losses, deferred fees, deferred costs and an adjustment of the amortized cost of loans to estimated fair value, which includes an interest rate mark and credit mark.
		c)	Represent an adjustment to reflect the fair value of above-market rent on leased premises. The above-market rent adjustment will be amortized on a straight-line basis over the remaining term of the respective leases.
		d)	Represents intangible assets recorded to reflect the fair value of core deposits. The core deposit asset was recorded as an identifiable intangible asset and will be amortized on an accelerated basis over the estimated average life of the deposit base.
		e)	Consist primarily of adjustments in net deferred tax assets resulting from the fair value adjustments related to acquired assets, liabilities assumed and identifiable intangibles recorded.
		f)	Represents fair value adjustment on time deposits as the weighted average interest rates of time deposits assumed exceeded the costs of similar funding available in the market at the time of the Merger, as well as the elimination of fees paid on brokered time deposits.
		g)	Represents the fair value adjustment on FHLB borrowings as the weighted average interest rate of FHLB borrowings assumed exceeded the cost of similar funding available in the market at the time of the Merger.
	The amount of goodwill recorded represents the excess purchase price over the estimated fair value of the net assets acquired by the Company and reflects the economies of scale, increased market share and lending capabilities, greater access to best-in-class banking technology, and related synergies that are expected to result from the acquisition.
	Except for collateral dependent loans with deteriorated credit quality, the fair values for loans acquired from Legacy ConnectOne were estimated using cash flow projections based on the remaining maturity and repricing terms. Cash flows were adjusted by estimated future credit losses and the rate of prepayments. Projected monthly cash flows were then discounted to present value using a risk-adjusted market rate for similar loans. For collateral dependent loans with deteriorated credit quality, fair value was estimated by analyzing the value of the underlying collateral, assuming the fair values of the loan were derived from the eventual sale of the collateral. These values were discounted using marked derived rates of returns, with consideration given to the period of time and costs associated with the foreclosure and disposition of the collateral. There was no carryover of Legacy ConnectOne allowance for loan and lease losses associated with the loans that were acquired, as the loans were initially recorded at fair value on the date of the Merger.
	The acquired loan portfolio subject to purchased credit impairment accounting guidance (ASC 310-30) as of July 1, 2014 was comprised of collateral dependent loans with deteriorated credit quality as follows (in thousands):
			ASC 310-30
			Loans
	Contractual principal and accrued interest at acquisition		$	23,284
	Principal not expected to be collected (non-accretable discount)			(6,942	)
	Expected cash flows at acquisition			16,342
	Interest component of expected cash flows (accretable discount)			(5,013	)
	Fair value of acquired loans		$	11,329
	The core deposit intangible asset recognized is being amortized over its estimated useful life of approximately 10 years utilizing the accelerated method. Other intangibles consist of below market rents, which are amortized over the remaining life of each lease using the straight-line method.
	Goodwill is not amortized for book purposes; however, it is reviewed at least annually for impairment and is not deductible for tax purposes.
	The fair value of retail demand and interest bearing deposit accounts was assumed to approximate the carrying value as these accounts have no stated maturity and are payable on demand. The fair value of time deposits was estimated by discounting the contractual future cash flows using market rates offered for time deposits of similar remaining maturities. The fair value of borrowed funds was estimated by discounting the future cash flows using market rates for similar borrowings.
	Direct acquisition and integration costs of the Merger were expensed as incurred and totaled $10.6 million. These items were recorded as merger-related expenses on the statement of operations.

Earnings_per_Common_Share

Earnings per Common Share	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Earnings Per Share [Text Block]	Note 3. Earnings per Common Share
	Basic earnings per common share (“EPS”) is computed by dividing income available to common stockholders by the weighted average number of common shares outstanding. Diluted EPS includes any additional common shares as if all potentially dilutive common shares were issued (e.g., stock options). The Company’s weighted average common shares outstanding for diluted EPS include the effect of stock options and restricted stock awards outstanding using the Treasury Stock Method, which are not included in the calculation of basic EPS.
	Earnings per common share have been computed as follows:
		Three Months Ended
		March 31,
	(in thousands, except for per share data)	2015			2014
	Net income	$	10,379		$	4,398
	Preferred stock dividends		(28	)		(28	)
	Net income available to common stockholders	$	10,351		$	4,370
	Basic weighted average common shares outstanding		29,757			16,350
	Effect of dilutive options		392			56
	Diluted weighted average common shares outstanding		30,149			16,406
	Earnings per common share:
	Basic	$	0.35		$	0.27
	Diluted		0.34			0.27

Investment_Securities

Investment Securities	3 Months Ended
	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	Note 4. Investment Securities
	The Company’s investment securities are classified as available-for-sale and held-to-maturity at March 31, 2015 and December 31, 2014. Investment securities available-for-sale are reported at fair value with unrealized gains or losses included in equity, net of tax. Accordingly, the carrying value of such securities reflects their fair value as of March 31, 2015. Fair value is based upon either quoted market prices, or in certain cases where there is limited activity in the market for a particular instrument, assumptions are made to determine their fair value. See Note 8 of the Notes to Consolidated Financial Statements for a further discussion.
	Transfers of debt securities from the available-for-sale category to the held-to-maturity category are made at fair value at the date of transfer. The unrealized holding gain or loss at the date of transfer remains in accumulated other comprehensive income and in the carrying value of the held-to-maturity investment security. Premiums or discounts on investment securities are amortized or accreted using the effective interest method over the life of the security as an adjustment of yield. Unrealized holding gains or losses that remain in accumulated other comprehensive income are amortized or accreted over the remaining life of the security as an adjustment of yield, offsetting the related amortization of the premium or accretion of the discount.
	The following tables present information related to the Company’s investment securities at March 31, 2015 and December 31, 2014.
		31-Mar-15
		Amortized		Gross			Gross			Fair
		Cost		Unrealized			Unrealized			Value
				Gains			Losses
		31-Mar-15
		(in thousands)
	Investment securities available-for-sale:
	Federal agency obligations	$	30,774	$	463		$	(4	)	$	31,233
	Residential mortgage pass-through securities		57,300		1,737			(9	)		59,028
	Commercial mortgage pass-through securities		3,027		55			—			3,082
	Obligations of U.S. states and political subdivisions		8,197		238			—			8,435
	Trust preferred securities		16,086		648			(278	)		16,456
	Corporate bonds and notes		110,671		6,190			(22	)		116,839
	Asset-backed securities		26,045		127			(80	)		26,092
	Certificates of deposit		2,097		31			(5	)		2,123
	Equity securities		376		—			(56	)		320
	Other securities		12,474		89			(50	)		12,513
	Total	$	267,047	$	9,578		$	(504	)	$	276,121
	Investment securities held-to-maturity:
	U.S. Treasury and agency securities	$	28,315	$	1,507		$	—		$	29,822
	Federal agency obligations		35,393		586			(30	)		35,949
	Residential mortgage-backed securities		5,542		26			(13	)		5,555
	Commercial mortgage-backed securities		4,124		86			—			4,210
	Obligations of U.S. states and political subdivisions		119,384		4,966			(46	)		124,304
	Corporate bonds and notes		38,962		1,472			(11	)		40,423
	Total	$	231,720	$	8,643		$	(100	)	$	240,263
	Total investment securities	$	498,767	$	18,221		$	(604	)	$	516,384
		Amortized		Gross			Gross			Fair
		Cost		Unrealized			Unrealized			Value
				Gains			Losses
		31-Dec-14
		(in thousands)
	Investment securities available-for-sale:
	Federal agency obligations	$	32,650	$	217		$	(50	)	$	32,817
	Residential mortgage pass-through securities		58,836		1,531			(11	)		60,356
	Commercial mortgage pass-through securities		3,042		4			—			3,046
	Obligations of U.S. states and political subdivisions		8,201		205			—			8,406
	Trust preferred securities		16,086		489			(269	)		16,306
	Corporate bonds and notes		119,838		5,950			(11	)		125,777
	Asset-backed securities		27,393		140			(31	)		27,502
	Certificates of deposit		2,098		27			(2	)		2,123
	Equity securities		376		—			(69	)		307
	Other securities		12,941		33			(82	)		12,892
	Total	$	281,461	$	8,596		$	(525	)	$	289,532
	Investment securities held-to-maturity:
	U.S. Treasury and agency securities	$	28,264	$	920		$	—		$	29,184
	Federal agency obligations		27,103		322			(28	)		27,397
	Residential mortgage-backed securities		5,955		28			—			5,983
	Commercial mortgage-backed securities		4,266		50			—			4,316
	Obligations of U.S. states and political subdivisions		120,144		4,512			(60	)		124,596
	Corporate bonds and notes		38,950		1,026			(7	)		39,969
	Total	$	224,682	$	6,858		$	(95	)	$	231,445
	Total investment securities	$	506,143	$	15,454		$	(620	)	$	520,977
	The following table presents information for investment securities available-for-sale at March 31, 2015, based on scheduled maturities. Actual maturities can be expected to differ from scheduled maturities due to prepayment or early call options of the issuer.
		31-Mar-15
		Amortized		Fair
		Cost		Value
		(in thousands)
	Investment securities available-for-sale:
	Due in one year or less	$	23,891	$	24,248
Due after one year through five years		32,274		33,611
Due after five years through ten years		83,910		88,819
Due after ten years		53,795		54,500
Residential mortgage pass-through securities		57,300		59,028
Commercial mortgage pass-through securities		3,027		3,082
Equity securities		376		320
Other securities		12,474		12,513
Total	$	267,047	$	276,121
Investment securities held-to-maturity:
Due in one year or less	$	4,991	$	5,020
Due after one year through five years		9,207		9,401
Due after five years through ten years		71,916		75,354
Due after ten years		135,940		140,723
Residential mortgage-backed securities		5,542		5,555
Commercial mortgage-backed securities		4,124		4,210
Total	$	231,720	$	240,263
Total investment securities	$	498,767	$	516,384
Gross gains and losses from the sales, calls, and maturities of investment securities for the three months ended March 31, 2015 and 2014 were as follows:
	Three Months Ended
	March 31,
(in thousands)	2015		2014
Proceeds	$	9,537	$	50,611
Gross gains on sales of investment securities		506		1,432
Gross losses on sales of investment securities		—		(17	)
Net gains on sales of investment securities		506		1,415
Less: tax provision on net gains		207		380
Total	$	299	$	1,035
The Company performs regular analysis on the available-for-sale securities portfolio to determine whether a decline in fair value indicates that an investment is other-than-temporarily impaired in accordance with FASB ASC 320-10. FASB ASC 320-10 requires companies to record other-than-temporary impairment (“OTTI”) charges, through earnings, if they have the intent to sell, or more likely than not be required to sell, an impaired debt security before recovery of its amortized cost basis. If the Company intends to sell or it is more likely than not it will be required to sell the security before recovery of its amortized cost basis, less any current period credit loss, the OTTI is recognized in earnings equal to the entire difference between the investment’s amortized cost basis and its estimated fair value at the balance sheet date. If the Company does not intend to sell the security and it is more likely than not that the entity will be required to sell the security before recovery of its amortized cost basis less any current period loss, and as such, it determines that a decline in fair value is other than temporary, the OTTI is separated into the amount representing the credit loss and the amount related to all other factors. The amount of the OTTI related to the credit loss is determined based on the present value of cash flows expected to be collected and is recognized in earnings. The amount of the total OTTI related to other factors is recognized in other comprehensive income, net of applicable taxes. The previous amortized cost basis less the OTTI recognized in earnings becomes the new amortized cost basis of the investment.
The Company reviews all securities for potential recognition of other-than-temporary impairment. The Company maintains a watch list for the identification and monitoring of securities experiencing problems that require a heightened level of review. This could include credit rating downgrades.
The Company’s assessment of whether an impairment in the portfolio is other than temporary includes factors such as whether the issuer has defaulted on scheduled payments, announced restructuring and/or filed for bankruptcy, has disclosed severe liquidity problems that cannot be resolved, disclosed deteriorating financial condition or sustained significant losses.
The following table presents detailed information for each single issuer trust preferred security held by the Company at March 31, 2015, of which all but one has at least one rating below investment grade (in thousands):
Issuer	Amortized		Fair			Gross			Lowest
	Cost		Value			Unrealized			Credit
						Gain (Loss)			Rating
									Assigned
Countrywide Capital IV	$	1,771	$	1,819		$	48		BB
Countrywide Capital V		2,747		2,848			101		BB
Countrywide Capital V		250		259			9		BB
Nationsbank Cap Trust III		1,575		1,297			(278	)	BB
Morgan Stanley Cap Trust IV		2,500		2,567			67		BB
Morgan Stanley Cap Trust IV		1,743		1,795			52		BB
Goldman Sachs		1,000		1,252			252		BB
Stifel Financial		4,500		4,619			119		BBB-
Total	$	16,086	$	16,456		$	370
Temporarily Impaired Investments
For all other securities, the Company does not believe that the unrealized losses, which were comprised of 39 and 54 investment securities as of March 31, 2015 and December 31, 2014, respectively, represent an other-than-temporary impairment. The gross unrealized losses associated with U.S. Treasury and agency securities, federal agency obligations, mortgage-backed securities, corporate bonds, tax-exempt securities, asset-backed securities, trust preferred securities, mutual funds and equity securities are not considered to be other than temporary because these unrealized losses are related to changes in interest rates and do not affect the expected cash flows of the underlying collateral or issuer.
Factors affecting the market price include credit risk, market risk, interest rates, economic cycles, and liquidity risk. The magnitude of any unrealized loss may be affected by the relative concentration of the Company’s investment in any one issuer or industry. The Company has established policies to reduce exposure through diversification of concentration of the investment portfolio including limits on concentrations to any one issuer. The Company believes the investment portfolio is prudently diversified.
The decline in value is related to a change in interest rates and subsequent change in credit spreads required for these issues affecting market price. All issues are performing and are expected to continue to perform in accordance with their respective contractual terms and conditions. Short to intermediate average durations and in certain cases monthly principal payments should reduce further market value exposure to increases in rates.
The Company evaluates all securities with unrealized losses quarterly to determine whether the loss is other than temporary. Unrealized losses in the corporate debt securities category consist primarily of senior unsecured corporate debt securities issued by large financial institutions, insurance companies and other corporate issuers. Single issuer corporate trust preferred securities are also included, and in the case of one holding the market valuation loss is largely based upon the floating rate coupon and corresponding market valuation. Neither that trust preferred issuer, nor any other corporate issuers, have defaulted on interest payments. The unrealized loss in equity securities consists of losses on other bank equities. The decline in fair value is due in large part to the lack of an active trading market for these securities, changes in market credit spreads and rating agency downgrades. Management concluded that these securities were not other-than-temporarily impaired at March 31, 2015.
In determining that the securities giving rise to the previously mentioned unrealized losses were not other than temporary, the Company evaluated the factors cited above, which the Company considers when assessing whether a security is other-than-temporarily impaired. In making these evaluations the Company must exercise considerable judgment. Accordingly, there can be no assurance that the actual results will not differ from the Company’s judgments and that such differences may not require the future recognition of other-than-temporary impairment charges that could have a material effect on the Company’s financial position and results of operations. In addition, the value of, and the realization of any loss on, an investment security is subject to numerous risks as cited above.
The following tables indicate gross unrealized losses not recognized in income and fair value, aggregated by investment category and the length of time individual securities have been in a continuous unrealized loss position at March 31, 2015 and December 31, 2014:
	31-Mar-15
	Total					Less than 12 Months						12 Months or Longer
	Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
	Value		Losses			Value			Losses			Value		Losses
	(in thousands)
Investment securities available-for-sale:
Federal agency obligation	$	1,656	$	(4	)	$	1,357		$	(1	)	$	299	$	(3	)
Residential mortgage pass-through securities		1,026		(9	)		1,026			(9	)		—		—
Trust preferred securities		1,297		(278	)		—			—			1,297		(278	)
Corporate bonds and notes		3,935		(22	)		3,935			(22	)		—		—
Asset-backed securities		9,698		(80	)		9,698			(80	)		—		—
Certificates of deposit		217		(5	)		217			(5	)		—		—
Equity securities		320		(56	)		—			—			320		(56	)
Other securities		5,477		(50	)		—			—			5,477		(50	)
Total	$	23,626	$	(504	)	$	16,233		$	(117	)	$	7,393	$	(387	)
Investment securities held-to-maturity:
Federal agency obligation	$	6,422	$	(30	)	$	6,422		$	(30	)	$	—	$	—
Residential mortgage pass-through securities		3,660		(13	)		3,660			(13	)		—		—
Obligations of U.S. states and political subdivisions		7,336		(46	)		7,336			(46	)		—		—
Corporate bonds and notes		3,720		(11	)		3,720			(11	)		—		—
Total	$	21,138	$	(100	)	$	21,138		$	(100	)	$	—	$	—
Total temporarily impaired securities	$	44,764	$	(604	)	$	37,371		$	(217	)	$	7,393	$	(387	)
	31-Dec-14
	Total					Less than 12 Months						12 Months or Longer
	Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
	Value		Losses			Value			Losses			Value		Losses
	(in thousands)
Investment securities available-for-sale:
Federal agency obligation	$	6,755	$	(50	)	$	2,770		$	(9	)	$	3,985	$	(41	)
Residential mortgage pass-through securities		5,694		(11	)		5,694			(11	)		—		—
Trust preferred securities		1,307		(269	)		—			—			1,307		(269	)
Corporate bonds and notes		1,961		(11	)		1,961			(11	)		—		—
Asset-backed securities		9,773		(31	)		9,773			(31	)		—		—
Certificates of deposit		369		(2	)		369			(2	)		—		—
Equity securities		307		(69	)		—			—			307		(69	)
Other securities		5,417		(82	)		1,978			(21	)		3,439		(61	)
Total	$	31,583	$	(525	)	$	22,545		$	(85	)	$	9,038	$	(440	)
Investment securities held-to-maturity:
Federal agency obligation	$	3,228	$	(28	)	$	3,228		$	(28	)	$	—	$	—
Obligations of U.S. states and political subdivisions		8,341		(60	)		1,401			(3	)		6,940		(57	)
Corporate bonds and notes		993		(7	)		993			(7	)		—		—
Total	$	12,562	$	(95	)	$	5,622		$	(38	)	$	6,940	$	(57	)
Total temporarily impaired securities	$	44,145	$	(620	)	$	28,167		$	(123	)	$	15,978	$	(497	)
Investment securities having a carrying value of approximately $215.9 million and $224.7 million at March 31, 2015 and December 31, 2014, respectively, were pledged to secure public deposits, borrowings, Federal Reserve Discount Window, and Federal Home Loan Bank advances and for other purposes required or permitted by law.
As of March 31, 2015 and December 31, 2014, there were no holdings of securities of any one issuer, other than the U.S Government and its agencies, in an amount greater than 10% of stockholders’ equity.

Derivatives

Derivatives	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities Disclosure [Text Block]	Note 5 - Derivatives
	The Company utilizes interest rate swap agreements as part of its asset liability management strategy to help manage its interest rate risk position. The notional amount of the interest rate swap does not represent amounts exchanged by the parties. The amount exchanged is determined by reference to the notional amount and the other terms of the individual interest rate swap agreements.
	Interest Rate Swaps Designated as Cash Flow Hedges: Interest rate swaps with a notional amount totaling $25.0 million and $25.0 million were entered into on October 15, 2014 and December 30, 2014, respectively, and were designated as cash flow hedges of certain Federal Home Loan Bank advances. The swaps were determined to be fully effective during the period presented and therefore no amount of ineffectiveness has been included in net income. Therefore, the aggregate fair value of the swaps is recorded in other assets (liabilities) with changes in fair value recorded in other comprehensive income (loss). The amount included in accumulated other comprehensive income (loss) would be reclassified to current earnings should the hedges no longer be considered effective. The Company expects the hedges to remain fully effective during the remaining term of the swaps.
	Summary information about the interest rate swaps designated as cash flow hedges as of period-end is as follows:
	(dollars in thousands)	March 31,			March 31,			December 31,
		2015			2014			2014
	Notional amount	$	50,000		$	—		$	50,000
	Weighted average pay rates		1.58	%		—	%		1.58	%
	Weighted average receive rates		0.25	%		—	%		0.24	%
	Weighted average maturity		4.2 years			—			4.4 years
	Fair value	$	(486	)	$	—		$	48
	Interest expense recorded on these swap transactions totaled approximately $166,000 for the three months ended March 31, 2015 and there are 0 related expenses for the three months ended March 31, 2014.
	Cash Flow Hedge
	The following table presents the net gains (losses), recorded in other comprehensive income and the Consolidated Statements of Income relating to the cash flow derivative instruments for the three months ended March 31, 2015:
	(in thousands)	Amount of gain			Amount of gain			Amount of gain
		(loss) recognized			(loss) reclassified			(loss)
		in OCI (Effective			from OCI to			recognized in other
		Portion)			interest income			Non-interest income (Ineffective Portion)
	Interest rate contracts	$	(534	)	$	—		$	—
	There were 0 net gains (losses) recorded in accumulated other comprehensive income or in the Consolidated Statement of Income relating to cash flow derivative instruments for the three months ended March 31, 2014.

Loans_and_the_Allowance_for_Lo

Loans and the Allowance for Loan and Lease Losses	3 Months Ended
	Mar. 31, 2015
Receivables [Abstract]
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	Note 6. Loans and the Allowance for Loan and Lease Losses
	Loans that management has the intent and ability to hold for the foreseeable future or until maturity or payoff are reported at the principal balance outstanding, net of deferred loan fees and costs, and an allowance for loan and lease losses. Interest income is accrued on the unpaid principal balance. Loan origination fees, net of certain direct origination costs, are deferred and recognized in interest income using the level-yield method without anticipating prepayments.
	Loan segments are defined as a group of loans and leases, which share similar initial measurement attributes, risk characteristics, and methods for monitoring and assessing credit risk. Management has determined that the Company has five segments of loans and leases: commercial (including lease financing), commercial real estate, commercial construction, residential real estate (including home equity) and consumer.
	Interest income on commercial, commercial real estate, commercial construction and residential loans are discontinued at the time the loan is 90 days delinquent unless the loan is well-secured and in process of collection. Past due status is based on the contractual terms of the loan. In all cases, loans are placed on nonaccrual or charged-off at an earlier date if collection of principal or interest is considered doubtful. Nonaccrual loans and loans past due 90 days still on accrual include both smaller balance homogeneous loans that are collectively evaluated for impairment and individually classified impaired loans. A loan is moved to nonaccrual status in accordance with the Company’s policy, typically after 90 days of non-payment.
	All interest accrued but not received for loans placed on nonaccrual are reversed against interest income. Interest received on such loans is accounted for on the cash-basis or cost-recovery method, until qualifying for return to accrual. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured.
	The policy of the Company is to generally grant commercial, residential and consumer loans to New Jersey residents and businesses within its market area. The borrowers’ abilities to repay their obligations are dependent upon various factors including the borrowers’ income and net worth, cash flows generated by the borrowers’ underlying collateral, value of the underlying collateral, and priority of the lender’s lien on the property. Such factors are dependent upon various economic conditions and individual circumstances beyond the control of the Company. The Company is therefore subject to risk of loss. The Company believes its lending policies and procedures adequately minimize the potential exposure to such risks and that adequate provisions for loan and lease losses are provided for all known and inherent risks. Collateral and/or personal guarantees are required for a large majority of the Company’s loans.
	Allowance for Loan and Lease Losses
	The allowance for loan and lease losses is a valuation allowance for probable incurred credit losses. Losses are charged against the allowance when management believes the uncollectibility of a loan balance is confirmed. Subsequent recoveries, if any, are credited to the allowance. Management estimates the allowance balance required using past loan and lease loss experience, the nature and volume of the portfolio, information about specific borrower situations and estimated collateral values, economic conditions, and other factors. Allocations of the allowance may be made for specific loans, but the entire allowance is available for any loan that, in management’s judgment, should be charged off. The allowance consists of specific and general components. The specific component relates to loans that are individually classified as impaired.
	A loan is impaired when, based on current information and events, it is probable that the Company will be unable to collect all amounts due according to the contractual terms of the loan agreement. Loans, for which the terms have been modified, and for which the borrower is experiencing financial difficulties, are considered troubled debt restructurings (“TDRs”) and classified as impaired. As part of the evaluation of impaired loans, the Company individually reviews for impairment all non-homogeneous loans internally classified as substandard or below. Generally, smaller impaired non-homogeneous loans and impaired homogeneous loans are collectively evaluated for impairment.
	The Bank has defined its population of impaired loans to include all loans on nonaccrual status; all troubled debt restructuring loans; and all loans (above an established dollar threshold of $250,000) internally classified as “Special Mention” or below that require a specific reserve.
	Factors considered by management in determining impairment include payment status, collateral value, and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower’s prior payment record, and the amount of the shortfall in relation to the principal and interest owed.
	Troubled debt restructurings are separately identified for impairment disclosures and are measured at the present value of estimated future cash flows using the loan’s effective rate at inception. If a troubled debt restructuring is considered to be a collateral dependent loan, the loan is reported, net, at the fair value of the collateral. For troubled debt restructurings that subsequently default, the Company determines the amount of reserve in accordance with the accounting policy for the allowance for loan and lease losses.
	The general component covers non-impaired loans and is based on historical loss experience adjusted for current factors. The historical loss experience, the primary factor, is determined by loan class and is based on the actual loss history experienced by the Bank over an actual three year rolling calculation. This actual loss experience is supplemented with other economic factors based on the risks present for each portfolio segment. This actual loss experience is supplemented with the exogenous factor adjustments based on the risks present for each loan category. These exogenous factors (nine total) include consideration of the following: concentrations of credit; delinquency & nonaccrual trends; economic & business conditions including evaluation of the national and regional economies and industries with significant loan concentrations; external factors including legal, regulatory or competitive pressures that may impact the loan portfolio; changes in the experience, ability, or size of the lending staff, management, or board of directors that may impact the loan portfolio; changes in underwriting standards, collection procedures, charge-off practices, or other changes in lending policies and procedures that may impact the loan portfolio; loss and recovery trends; changes in portfolio size and mix; and trends in problem loans.
	Purchased Credit-Impaired Loans
	The Company purchases groups of loans in conjunction with mergers, some of which have shown evidence of credit deterioration since origination. These purchased credit impaired loans are recorded at the amount paid, such that there is no carryover of the seller’s allowance for loan and lease losses.  After acquisition, losses are recognized by an increase in the allowance for loan and lease losses.
	Such purchased credit impaired loans are accounted for individually.  The Company estimates the amount and timing of expected cash flows for each loan and the expected cash flows in excess of amount paid is recorded as interest income over the remaining life of the loan (accretable yield).  The excess of the loan’s contractual principal and interest over expected cash flows is not recorded (nonaccretable difference).
	Over the life of the loan, expected cash flows continue to be estimated.  If the present value of expected cash flows is less than the carrying amount, a loss is recorded.  If the present value of expected cash flows is greater than the carrying amount, it is recognized as part of future interest income.
	Composition of Loan Portfolio
	The following table sets forth the composition of the Company’s loan portfolio, including net deferred loan fees, at March 31, 2015 and December 31, 2014:
		March 31,			December 31,
		2015			2014
		(in thousands)
	Commercial	$	562,931		$	499,816
	Commercial real estate		1,668,310			1,634,510
	Commercial construction		181,056			167,359
	Residential real estate		226,645			234,967
	Consumer		3,581			2,879
	Gross loans		2,642,523			2,539,531
	Net deferred loan fees		(1,784	)		(890	)
	Total loans receivable	$	2,640,739		$	2,538,641
	At March 31, 2015 and December 31, 2014, loan balances of approximately $1.1 billion and $1.0 billion, respectively, were pledged to secure borrowings from the Federal Home Loan Bank of New York.
	Purchased Credit-Impaired Loans
	The Company holds purchased loans for which there was, at their acquisition date, evidence of deterioration of credit quality since their origination and it was probable, at acquisition, that all contractually required payments would not be collected. The carrying amount of those loans is as follows at March 31, 2015 and December 31, 2014.
		March 31,			December 31,
		2015			2014
		(in thousands)
	Commercial	$	7,146		$	7,199
	Commercial real estate		1,807			1,816
	Residential real estate		819			806
	Total carrying amount	$	9,772		$	9,821
	For those purchased loans disclosed above, the Company did not increase the allowance for loan and lease losses for the three months ended March 31, 2015, nor did it increase the allowance for loan and lease losses for purchased impaired loans during the three months ended March 31, 2015.
	The accretable yield, or income expected to be collected, on the purchased loans for the three months ended March 31, 2015 is as follows (in thousands):
		March 31,
		2015
	Balance at January 1, 2015	$	4,805
	New loans purchased		—
	Accretion of income		(54	)
	Reclassifications from non-accretable difference		—
	Disposals		—
	Balance at March 31, 2015	$	4,751
	The following table presents information about the recorded investment in loan receivables on nonaccrual status by class at March 31, 2015 and December 31, 2014:
	Loans Receivable on Nonaccrual Status
		March 31,			December 31,
		2015			2014
		(in thousands)
	Commercial	$	3,347		$	616
	Commercial real estate		8,009			8,197
	Residential real estate		3,229			2,796
	Total loans receivable on nonaccrual status	$	14,585		$	11,609
	Nonaccrual loans and loans past due 90 days still on accrual include both smaller balance homogenous loans that are collectively evaluated for impairment and individually classified impaired loans.
	The Company continuously monitors the credit quality of its loans receivable. In addition to its internal staff, the Company utilizes the services of a third party loan review firm to rate the credit quality of its loans receivable. Credit quality is monitored by reviewing certain credit quality indicators. Assets classified “Pass” are deemed to possess average to superior credit quality, requiring no more than normal attention. Assets classified as “Special Mention” have generally acceptable credit quality yet possess higher risk characteristics/circumstances than satisfactory assets. Such conditions include strained liquidity, slow pay, stale financial statements, or other conditions that require more stringent attention from the lending staff. These conditions, if not corrected, may weaken the loan quality or inadequately protect the Company’s credit position at some future date. Assets are classified “Substandard” if the asset has a well-defined weakness that requires management’s attention to a greater degree than for loans classified special mention. Such weakness, if left uncorrected, could possibly result in the compromised ability of the loan to perform to contractual requirements. An asset is classified as “Doubtful” if it is inadequately protected by the net worth and/or paying capacity of the obligor or of the collateral, if any, that secures the obligation. Assets classified as doubtful include assets for which there is a “distinct possibility” that a degree of loss will occur if the inadequacies are not corrected. The following table presents information, excluding net deferred loan fees, about the Company’s loan credit quality at March 31, 2015 and December 31, 2014:
		31-Mar-15
		Pass			Special			Substandard		Doubtful			Total
					Mention
	(in thousands)
Commercial	$	528,431		$	23,975		$	10,249	$	276		$	562,931
Commercial real estate		1,621,181			24,509			22,620		—			1,668,310
Commercial construction		179,577			1,479			—		—			181,056
Residential real estate		223,148			—			3,497		—			226,645
Consumer		3,484			—			97		—			3,581
Total loans	$	2,555,821		$	49,963		$	36,463	$	276		$	2,642,523
	31-Dec-14
	Pass			Special			Substandard		Doubtful			Total
				Mention
	(in thousands)
Commercial	$	481,638		$	3,686		$	14,203	$	289		$	499,816
Commercial real estate		1,596,606			14,140			23,764		—			1,634,510
Commercial construction		165,880			1,479			—		—			167,359
Residential real estate		230,772			—			4,195		—			234,967
Consumer		2,778			—			101		—			2,879
Total loans	$	2,477,674		$	19,305		$	42,263	$	289		$	2,539,531
The following table provides an analysis of the impaired loans, by loan segment, at March 31, 2015 and December 31, 2014:
	31-Mar-15
	Recorded			Unpaid			Related
	Investment			Principal			Allowance
				Balance
No related allowance recorded	(in thousands)
Commercial	$	314		$	334		$	—
Commercial real estate		5,774			6,468			—
Residential real estate		3,505			3,869			—
Consumer		105			97			—
Total	$	9,698		$	10,768		$	—
With an allowance recorded
Commercial	$	382		$	390		$	188
Commercial real estate		6,341			6,341			518
Total	$	6,723		$	6,731		$	706
Total
Commercial	$	696		$	724		$	188
Commercial real estate		12,115			12,809			518
Residential real estate		3,505			3,869			—
Consumer		105			97			—
Total	$	16,421		$	17,499		$	706
	31-Dec-14
	Recorded			Unpaid			Related
	Investment			Principal			Allowance
				Balance
No related allowance recorded	(in thousands)
Commercial	$	481		$	527		$	—
Commercial real estate		5,890			6,587			—
Residential real estate		3,072			3,407			—
Consumer		109			101			—
Total	$	9,552		$	10,622		$	—
With an allowance recorded
Commercial	$	387		$	390		$	111
Commercial real estate		3,520			3,520			151
Total	$	3,907		$	3,910		$	262
Total
Commercial	$	868		$	917		$	111
Commercial real estate		9,410			10,107			151
Residential real estate		3,072			3,407			—
Consumer		109			101			—
Total	$	13,459		$	14,532		$	262
The following table provides an analysis related to the average recorded investment and interest income recognized on impaired loans by segment as of and for the three months ended March 31, 2015 and 2014 (in thousands):
	Three Months Ended March 31,
	2015						2014
	Average			Interest			Average		Interest
	Recorded			Income			Recorded		Income
	Investment			Recognized			Investment		Recognized
Impaired loans with no related allowance recorded
Commercial	$	290		$	—		$	—	$	—
Commercial real estate		6,052			19			1,275		57
Residential real estate		3,613			2			—		—
Consumer		106			1			—		—
Total	$	10,061		$	22		$	1,275	$	57
Impaired loans with an allowance recorded
Commercial	$	387		$	—		$	—	$	—
Commercial real estate		6,335			—			2,302		68
Residential real estate		—			—			1,226		31
Total	$	6,722		$			$	3,528	$	99
Total impaired loans
Commercial	$	677		$	—		$	—	$	—
Commercial real estate		12,387			19			3,477		125
Residential real estate		3,613			2			1,226		31
Consumer		106			1			—		—
Total	$	16,783		$	22		$	4,703	$	156
Included in impaired loans at March 31, 2015, December 31, 2014 and March 31, 2014 are loans that are deemed troubled debt restructurings. The recorded investment in loans include accrued interest receivable and other capitalized costs such as real estate taxes paid on behalf of the borrower and loan origination fees, net, when applicable. Cash basis interest and interest income recognized on accrual basis approximate each other.
The following table provides an analysis of the aging of the recorded investment of loans, excluding net deferred loan fees that are past due at March 31, 2015 and December 31, 2014 by segment:
Aging Analysis
	31-Mar-15
	30-59 Days			60-89 Days			90 Days or		Total Past			Current			Total Loans			Loans
	Past Due			Past Due			Greater Past		Due						Receivable			Receivable 90
							Due											Days or Greater
																		Past Due and
																		Accruing
	(in thousands)
Commercial	$	5,562		$	554		$	3,899	$	10,015		$	552,916		$	562,931		$	638
Commercial real estate		2,567			5,092			4,180		11,839			1,656,471			1,668,310			—
Commercial construction		375			—			—		375			180,681			181,056			—
Residential real estate		1,925			—			2,937		4,862			221,783			226,645			—
Consumer		2			1			—		3			3,578			3,581
Total	$	10,431		$	5,647		$	11,016	$	27,094		$	2,615,429		$	2,642,523		$	638
Aging Analysis
	31-Dec-14
	30-59 Days			60-89 Days			90 Days or		Total Past			Current			Total Loans			Loans
	Past Due			Past Due			Greater Past		Due						Receivable			Receivable 90
							Due											Days or Greater
																		Past Due and
																		Accruing
	(in thousands)
Commercial	$	6,060		$	—		$	662	$	6,722		$	493,094		$	499,816		$	45
Commercial real estate		4,937			638			5,961		11,535			1,622,975			1,634,510			609
Commercial construction		—			—			—		—			167,359			167,359			—
Residential real estate		1,821			210			3,200		5,231			229,736			234,967			557
Consumer		30			1			—		31			2,848			2,879			—
Total	$	12,848		$	849		$	9,823	$	23,519		$	2,516,012		$	2,539,531		$	1,211
The following table details the amount of loans receivable that are evaluated individually, and collectively, for impairment (excluding net deferred loan fees), acquired, and the related portion of the allowance for loan and lease losses that are allocated to each loan portfolio segment:
	31-Mar-15
	Commercial			Commercial			Commercial		Residential			Consumer			Unallocated			Total
				real estate			construction		real estate
	(in thousands)
Allowance for loan and lease losses
Individually evaluated for impairment	$	188		$	518		$	—	$	—		$	—		$	—		$	706
Collectively evaluated for impairment		3,739			8,328			1,518		981			4			657			15,227
Acquired with deteriorated credit quality		—			—			—		—			—			—			—
Total	$	3,927		$	8,846		$	1,518	$	981		$	4		$	657		$	15,933
Loans receivable
Individually evaluated for impairment	$	696		$	12,115		$	—	$	3,905		$	105		$	—		$	16,421
Collectively evaluated for impairment		555,089			1,654,388			181,056		222,321			3,476			—			2,616,330
Acquired with deteriorated credit quality		7,146			1,807			—		819			—			—			9,772
Total	$	562,931		$	1,668,310		$	181,056	$	226,645		$	3,581		$	—		$	2,642,523
The tables above include approximately $1.1 billion of acquired loans for the period ended March 31, 2015 reported as collectively evaluated for impairment.
The following table details the amount of loans that are evaluated individually, and collectively, for impairment (excluding net deferred loan fees), acquired, and the related portion of the allowance for loan and lease losses that are allocated to each loan portfolio segment:
	31-Dec-14
	Commercial			Commercial			Commercial		Residential			Consumer			Unallocated			Total
				real estate			construction		real estate
	(in thousands)
Allowance for loan and lease losses
Individually evaluated for impairment	$	111		$	151		$	—	$	—		$	—		$	—		$	262
Collectively evaluated for impairment		2,972			7,648			1,239		1,113			7			919			13,898
Acquired with deteriorated credit quality		—			—			—		—			—			—			—
Total	$	3,083		$	7,799		$	1,239	$	1,113		$	7		$	919		$	14,160
Loans receivable
Individually evaluated for impairment	$	452		$	6,284		$	—	$	2,180		$	101		$	—		$	9,017
Collectively evaluated for impairment		492,165			1,626,410			167,359		231,981			2,778			—			2,520,693
Acquired with deteriorated credit quality		7,199			1,816			—		806			—			—			9,821
Total	$	499,816		$	1,634,510		$	167,359	$	234,967		$	2,879		$	—		$	2,539,531
The tables above include approximately $1.2 billion of acquired loans for the period ended December 31, 2014 reported as collectively evaluated for impairment.
The Company’s allowance for loan and lease losses is analyzed quarterly. Many factors are considered, including growth in the portfolio, delinquencies, nonaccrual loan levels, and other factors inherent in the extension of credit. There have been no material changes to the allowance for loan and lease losses methodology as disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.
A summary of the activity in the allowance for loan and lease losses is as follows:
	Three Months Ended March 31, 2015
	Commercial			Commercial			Commercial		Residential			Consumer			Unallocated			Total
				real estate			construction		real estate
	(in thousands)
Balance at January 1, 2015	$	3,083		$	7,799		$	1,239	$	1,113		$	7		$	919		$	14,160
Charge-offs		(45	)		(4	)		—		—			(11	)		—			(60	)
Recoveries		6			—			—		1			1			—			8
Provision		883			1,051			279		(133	)		7			(262	)		1,825
Balance at March 31, 2015	$	3,927		$	8,846		$	1,518	$	981		$	4		$	657		$	15,933
	Three Months Ended March 31, 2014
	Commercial			Commercial			Commercial		Residential			Consumer			Unallocated			Total
				real estate			construction		real estate
	(in thousands)
Balance at January 1, 2014	$	1,698		$	5,746		$	362	$	990		$	146		$	1,391		$	10,333
Charge-offs		(333	)		—			—		—			(3	)		—			(336	)
Recoveries		—			—			—		10			1			—			11
Provision		860			(362	)		72		4			(65	)		116			625
Balance at March 31, 2014	$	2,225		$	5,384		$	434	$	1,004		$	79		$	1,507		$	10,663
Trouble Debt Restructurings
At March 31, 2015, there were 0 commitments to lend additional funds to borrowers whose loans were on nonaccrual status or were contractually past due in excess of 90 days and still accruing interest, or whose terms have been modified in troubled debt restructurings.
The policy of the Company generally is to grant commercial, mortgage and consumer loans to residents and businesses within its market area. The borrowers’ abilities to repay their obligations are dependent upon various factors, including the borrowers’ income and net worth, cash flows generated by the borrowers’ underlying collateral, value of the underlying collateral, and priority of the lender’s lien on the property. Such factors are dependent upon various economic conditions and individual circumstances beyond the control of the Company. The Company is therefore subject to risk of loss. The Company believes its lending policies and procedures adequately minimize the potential exposure to such risks and that adequate provisions for loan and lease losses are provided for all known and inherent risks. Collateral and/or personal guarantees are required for virtually all loans. A loan is considered to be in payment default once it is 90 days contractually past due under the modified terms.
Loans modified in a troubled debt restructuring totaled a recorded investment of $2.8 million at March 31, 2015, of which $1.1 million were on nonaccrual status. The remaining loans modified were current and have complied with the terms of their restructure agreement. At December 31, 2014, loans modified in a troubled debt restructuring totaled $2.8 million, of which $1.0 million were on nonaccrual status. The remaining loans modified were current at the time of the restructuring and have complied with the terms of their restructure agreement. The Company has allocated 0 specific allocations with respect to loans whose loan terms had been modified in troubled debt restructurings as of March 31, 2015 and December 31, 2014. The TDRs presented as of March 31, 2015 and December 31, 2014 did not increase the allowance for loan and lease losses.
There were 0 troubled debt restructurings occurring during the three months ended March 31, 2015.
There were 0 charge-offs in connection with a loan modification at the time of modification during the three months ended March 31, 2015. There were 0 troubled debt restructurings for which there was a payment default within twelve months following the modification during the three months ended March 31, 2015.
The following table presents loans by segment modified as troubled debt restructurings that occurred during the year ended March 31, 2014 (dollars in thousands):
				Pre-Modification			Post-Modification
				Outstanding			Outstanding
	Number of			Recorded			Recorded
	Loans			Investment			Investment
Troubled debt restructurings:
Commercial		1		$	672		$	337
The Company had a $333,000 charge-off in connection with a loan modification at the time of modification during the three months ended March 31, 2014. There were no troubled debt restructurings for which there was a payment default within twelve months following the modification during the three months ended March 31, 2014.

Fair_Value_Measurements_and_Fa

Fair Value Measurements and Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value Disclosures [Text Block]	Note 7. Fair Value Measurements and Fair Value of Financial Instruments
	ASC Topic 820, “Fair Value Measurements and Disclosures,” establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy are described below:
		Level 1:   Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.
		Level 2:   Quoted prices for similar assets and liabilities in active markets, and inputs that are observable for the asset or liability, either directly or indirectly, for substantially the full term of the financial instrument.
		Level 3:   Prices or valuation techniques that require inputs that are both significant to the fair value measurement and unobservable (for example, supported with little or no market activity).
	An asset’s or liability’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement.
	The following information should not be interpreted as an estimate of the fair value of the entire Company since a fair value calculation is only provided for a limited portion of the Company’s assets and liabilities. Due to a wide range of valuation techniques and the degree of subjectivity used in making the estimates, comparisons between the Company’s disclosures and those of other companies may not be meaningful. The following methods and assumptions were used to estimate the fair values of the Company’s assets measured at fair value on a recurring basis at March 31, 2015 and December 31, 2014:
	Securities available-for-sale - Where quoted prices are available in an active market, securities are classified with Level 1 of the valuation hierarchy. Level 1 inputs include securities that have quoted prices in active markets for identical assets. If quoted market prices are not available, then fair values are estimated by using pricing models, quoted prices of securities with similar characteristics, or discounted cash flows. Examples of instruments, which would generally be classified within Level 2 of the valuation hierarchy, include municipal bonds and certain agency collateralized mortgage obligations. In certain cases where there is limited activity in the market for a particular instrument, assumptions must be made to determine their fair value and are classified as Level 3. Due to the inactive condition of the markets amidst the financial crisis, the Company treated certain securities as Level 3 securities in order to provide more appropriate valuations. For assets in an inactive market, the infrequent trades that do occur are not a true indication of fair value. When measuring fair value, the valuation techniques available under the market approach, income approach and/or cost approach are used. The Company’s evaluations are based on market data and the Company employs combinations of these approaches for its valuation methods depending on the asset class.
	Derivatives - The fair value of derivatives are based on valuation models using observable market data as of the measurement date (level 2). Our derivatives are traded in an over-the-counter market where quoted market prices are not always available. Therefore, the fair values of derivatives are determined using quantitative models that utilize multiple market inputs. The inputs will vary based on the type of derivative, but could include interest rates, prices and indices to generate continuous yield or pricing curves, prepayment rate, and volatility factors to value the position. The majority of market inputs are actively quoted and can be validated through external sources, including brokers, market transactions and third-party pricing services.
	Loans held for sale - Loans held for sale are required to be measured at the lower of cost or fair value. Under FASB ASC 820-10-05, market value is to represent fair value. Management obtains quotes or bids on all or part of these loans directly from the purchasing financial institutions.
	Loans receivable - The fair value of performing loans, except residential mortgages, is calculated by discounting scheduled cash flows through the estimated maturity using estimated market discount rates that reflect the credit and interest rate risks inherent in the loan. The estimate of maturity is based on the historical experience of the Bank with prepayments for each loan classification, modified as required by an estimate of the effect of current economic and lending conditions. For performing residential mortgage loans, fair value is estimated by discounting contractual cash flows adjusted for prepayment estimates using discount rates based on secondary market sources adjusted to reflect differences in servicing and credit costs.
	Off-balance sheet financial instruments - The fair value of commitments to extend credit is estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed rate loan commitments, fair value also considers the difference between current levels of interest rate and the committed rates.
	The fair value of financial standby letters of credit is based on fees currently charged for similar agreements or on the estimated cost to terminate them or otherwise settle the obligations with the counterparties.
	Assets and Liabilities Measured at Fair Value on a Recurring Basis
	For financial assets and liabilities measured at fair value on a recurring basis, the fair value measurements by level within the fair value hierarchy used at March 31, 2015 and December 31, 2014 are as follows:
					31-Mar-15
					Fair Value Measurements at Reporting Date Using
					Quoted Prices			Significant		Significant
					in Active			Other		Unobservable
					Markets for			Observable		Inputs
					Identical			Inputs		(Level 3)
					Assets			(Level 2)
					(Level 1)
	(in thousands)
	Recurring fair value measurements:
	Assets
	Investment securities:
	Available-for-sale:
	Federal agency obligations	$	31,233		$	—		$	31,233	$	—
	Residential mortgage pass-through securities		59,028			—			59,028		—
	Commercial mortgage pass-through securities		3,082			—			3,082		—
	Obligations of U.S. states and political subdivision		8,435			—			8,435		—
	Trust preferred securities		16,456			—			16,456		—
	Corporate bonds and notes		116,839			—			116,839		—
	Asset-backed securities		26,092			—			26,092		—
	Certificates of deposit		2,123			—			2,123		—
	Equity securities		320			320			—		—
	Other securities		12,513			12,513			—		—
	Total available-for-sale		276,121			12,833			263,288		—
	Loans held for sale		1,392			—			1,392		—
	Total assets	$	277,513		$	12,833		$	264,680	$	—
	Liabilities
	Derivatives	$	486		$	—		$	486	$	—
	Total liabilities	$	486		$	—		$	486	$	—
					31-Dec-14
					Fair Value Measurements at Reporting Date Using
					Quoted Prices			Significant		Significant
					in Active			Other		Unobservable
					Markets for			Observable		Inputs
					Identical			Inputs		(Level 3)
					Assets			(Level 2)
					(Level 1)
	(in thousands)
	Recurring fair value measurements:
	Assets
	Investment securities:
	Available-for-sale:
	Federal agency obligations	$	32,817		$	—		$	32,817	$	—
	Residential mortgage pass-through securities		60,356			—			60,356		—
	Commercial mortgage pass-through securities		3,046			—			3,046		—
	Obligations of U.S. states and political subdivision		8,406			—			8,406		—
	Trust preferred securities		16,306			—			16,306		—
	Corporate bonds and notes		125,777			—			125,777		—
	Asset-backed securities		27,502			—			27,502		—
Certificates of deposit		2,123			—			2,123		—
Equity securities		307			307			—		—
Other securities		12,892			12,892			—		—
Total available-for-sale		289,532			13,199			276,333		—
Derivatives		48			—			48		—
Total assets	$	289,580		$	13,199		$	276,381	$	—
For the three months ended March 31, 2015, there were no transfers of investment securities available-for-sale into or out of Level 1, Level 2, or Level 3 assets.
Assets Measured at Fair Value on a Non-Recurring Basis
For assets measured at fair value on a non-recurring basis, the unobservable inputs used to derive fair value measurements at March 31, 2015 and December 31, 2014 were as follows:
March 31, 2015
				Range
Impaired loans	Valuation Techniques		Range of Unobservable Inputs	Minimum		Maximum
Commercial real estate	Appraisals of collateral value		Market capitalization rates. Market rental rates for similar properties	8%		12%
Other real estate owned
Commercial real estate	Appraisals of collateral value		Adjustment for age of comparable sales	0%		25%
December 31, 2014
				Range
Impaired loans	Valuation Techniques		Range of Unobservable Inputs	Minimum		Maximum
Commercial real estate	Appraisals of collateral value		Market capitalization rates. Market rental rates for similar properties	8%		12%
Other real estate owned
Commercial real estate	Appraisals of collateral value		Adjustment for age of comparable sales	0%		25%
				Fair Value Measurements at Reporting Date Using
Assets measured at fair value on a nonrecurring basis:	March 31,			Quoted			Significant		Significant
	2015			Prices			Other		Unobservable
				in Active			Observable		Inputs
				Markets for			Inputs		(Level 3)
				Identical			(Level 2)
				Assets
				(Level 1)
Impaired loans	(in thousands)
Commercial	$	194		$	—		$	—	$	194
Commercial real estate		5,823			—			—		5,823
Other real estate owned
Commercial real estate		870			—			—		870
				Fair Value Measurements at Reporting Date Using
Assets Measured at Fair Value on a Non-Recurring Basis	December 31,			Quoted			Significant		Significant
	2014			Prices			Other		Unobservable
				in Active			Observable		Inputs
				Markets for			Inputs		(Level 3)
				Identical			(Level 2)
				Assets
				(Level 1)
Impaired loans	(in thousands)
Commercial	$	276		$	—		$	—	$	276
Commercial real estate		3,369			—			—		3,369
Other real estate owned
Commercial real estate		1,108			—			—		1,108
The following methods and assumptions were used to estimate the fair values of the Company’s assets measured at fair value on a non-recurring basis at March 31, 2015 and December 31, 2014.
Impaired loans - Impaired loans at March 31, 2015 that required a valuation allowance during 2015 were $6.7 million with a related valuation allowance of $706,000 compared to $3.9 million with a related valuation allowance of $262,000 at December 31, 2014. Additional provision for loan and lease losses of $444,000 for the first quarter of 2015 was recorded. An additional provision for loan and lease losses of $262,000 for the year ended December 31, 2014 was recorded.
Other real estate owned - Other real estate owned (“OREO”) is measured at fair value less costs to sell. The Company believes that the fair value component in its valuation follows the provisions of FASB ASC 820-10-05. The fair value of OREO is determined by sales agreements or appraisals by qualified licensed appraisers approved and hired by the Company. Costs to sell associated with OREO are based on estimation per the terms and conditions of the sales agreements or appraisals. For the three months ended March 31, 2015, 0 provision recorded.
Fair Value of Financial Instruments
FASB ASC 825-10 requires all entities to disclose the estimated fair value of their financial instrument assets and liabilities. For the Company, as for most financial institutions, the majority of its assets and liabilities are considered financial instruments as defined in FASB ASC 825-10. Many of the Company’s financial instruments, however, lack an available trading market as characterized by a willing buyer and willing seller engaging in an exchange transaction. It is also the Company’s general practice and intent to hold its financial instruments to maturity and not to engage in trading or sales activities except for loans held-for-sale and investment securities available-for-sale. Therefore, significant estimations and assumptions, as well as present value calculations, were used by the Company for the purposes of this disclosure.
Cash and cash equivalents - The carrying amounts of cash and short-term instruments approximate fair values.
FHLB stock - It is not practical to determine the fair value of FHLB stock due to restrictions placed on its transferability.
Investment securities held-to-maturity - The fair value of the Company’s investment securities held-to-maturity was primarily measured using information from a third-party pricing service. If quoted prices were not available, fair values were estimated primarily by obtaining quoted prices for similar assets in active markets or through the use of pricing models. In cases where there may be limited or less transparent information provided by the Company’s third-party pricing service, fair value may be estimated by the use of secondary pricing services or through the use of non-binding third-party broker quotes.
Loans - The fair value of the Company’s loans was estimated by discounting the expected future cash flows using the current interest rates at which similar loans would be made to borrowers with similar credit ratings and for the same remaining maturities. Loans were segregated by types such as commercial, residential and consumer loans. Expected future cash flows were projected based on contractual cash flows, adjusted for estimated prepayments.
Interest-bearing deposits - The fair values of the Company’s interest-bearing deposits were estimated using discounted cash flow analyses. The discount rates used were based on rates currently offered for deposits with similar remaining maturities. The fair values of the Company’s interest-bearing deposits do not take into consideration the value of the Company’s long-term relationships with depositors, which may have significant value.
Borrowings and subordinated debentures - The fair value of the Company’s borrowings and subordinated debentures were calculated using a discounted cash flow approach and applying discount rates currently offered based on weighted remaining maturities.
Accrued interest receivable/payable - The carrying amounts of accrued interest approximate fair value resulting in a level 2 or level 3 classification based on the level of the asset or liability with which the accrual is associated.
The following presents the carrying amount, fair value, and placement in the fair value hierarchy of the Company’s financial instruments as of March 31, 2015 and December 31, 2014.
							Fair Value Measurements
	Carrying			Fair			Quoted		Significant		Significant
	Amount			Value			Prices in		Other		Unobservable
							Active		Observable		Inputs
							Markets for		Inputs		(Level 3)
							Identical		(Level 2)
							Assets
							(Level 1)
	(in thousands)
31-Mar-15
Financial assets
Cash and cash equivalents	$	88,543		$	88,543		$	88,543	$	—	$	—
Investment securities available-for-sale		276,121			276,121			12,833		263,288		—
Investment securities held-to-maturity		231,720			240,263			29,822		191,722		18,719
Restricted investment in bank stocks		24,874			n/a			n/a		n/a		n/a
Loans held for sale		1,392			1,392					1,392
Net loans		2,624,806			2,628,873			—		—		2,628,873
Accrued interest receivable		11,513			11,513			199		2,943		8,371
Financial liabilities
Noninterest-bearing deposits		479,652			479,652			479,652		—		—
Interest-bearing deposits		2,016,359			2,021,144			—		2,021,144		—
Borrowings		525,148			532,335			—		532,335		—
Subordinated debentures		5,155			4,852			—		4,852		—
Derivatives		486			486			—		486		—
Accrued interest payable		4,316			4,316			—		4,316		—
							Fair Value Measurements
	Carrying			Fair			Quoted		Significant		Significant
	Amount			Value			Prices in		Other		Unobservable
							Active		Observable		Inputs
							Markets for		Inputs		(Level 3)
							Identical		(Level 2)
							Assets
							(Level 1)
	(in thousands)
31-Dec-14
Financial assets
Cash and cash equivalents	$	126,847		$	126,847		$	126,847	$	—	$	—
Investment securities available-for-sale		289,532			289,532			13,199		276,333		—
Investment securities held-to-maturity		224,682			231,445			29,184		183,489		18,772
Restricted investment in bank stocks		23,535			n/a			n/a		n/a		n/a
Net loans		2,524,481			2,538,415			—		—		2,538,415
Derivatives		48			48			—		48		—
Accrued interest receivable		11,700			11,700			68		3,674		7,958
Financial liabilities
Noninterest-bearing deposits		492,515			492,515			492,515		—		—
Interest-bearing deposits		1,983,092			1,990,484			—		1,990,484		—
Borrowings		495,553			505,641			—		505,641		—
Subordinated debentures		5,155			4,768			—		4,768		—
Accrued interest payable		3,930			3,930			—		3,930		—
The fair value of commitments to originate loans is estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties. For fixed-rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates. The fair values of letters of credit and lines of credit are based on fees currently charged for similar agreements or on the estimated cost to terminate or otherwise settle the obligations with the counterparties at the reporting date.
Changes in assumptions or estimation methodologies may have a material effect on these estimated fair values.
The Company’s remaining assets and liabilities, which are not considered financial instruments, have not been valued differently than has been customary with historical cost accounting. No disclosure of the relationship value of the Company’s core deposit base is required by FASB ASC 825-10.
Fair value estimates are based on existing balance sheet financial instruments, without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. For example, there are certain significant assets and liabilities that are not considered financial assets or liabilities, such as the brokerage network, deferred taxes, premises and equipment, and goodwill. In addition, the tax ramifications related to the realization of the unrealized gains and losses can have a significant effect on fair value estimates and have not been considered in the estimates.
Management believes that reasonable comparability between financial institutions may not be likely, due to the wide range of permitted valuation techniques and numerous estimates which must be made, given the absence of active secondary markets for many of the financial instruments. This lack of uniform valuation methodologies also introduces a greater degree of subjectivity to these estimated fair values.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income	3 Months Ended
	Mar. 31, 2015
Disclosure Text Block [Abstract]
Comprehensive Income (Loss) Note [Text Block]	Note 8. Accumulated Other Comprehensive Income
	Accumulated other comprehensive loss (net of tax) at March 31, 2015 and December 31, 2014 consisted of the following:
		March 31,			December 31,
		2015			2014
		(in thousands)
	Net unrealized gain on investment securities available-for-sale	$	5,491		$	4,874
	Cash flow hedge		(288	)		28
	Unamortized component of securities transferred from available-for-sale to held-to-maturity		(1,263	)		(1,301	)
	Defined benefit pension and post-retirement plans		(4,176	)		(4,615	)
	Total accumulated other comprehensive loss	$	(236	)	$	(1,014	)

StockBased_Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	Note 9. Stock-Based Compensation
	The Company’s stock-based compensation plans permit Parent Corporation common stock to be issued to key employees and directors of the Company and its subsidiaries. The options granted under the plans are intended to be either incentive stock options or non-qualified options. Under the 2009 Equity Incentive Plan, a total of 303,615 shares are available for grant and issuance as of March 31, 2015. In addition, a total of 237,621 shares remain available for grant and issuance under Legacy ConnectOne equity plans. Options may be exercised with shares issued from Treasury shares, newly issued shares or a combination of both.
	Options have been granted to purchase common stock at the fair market value of the stock at the date of grant. Options are exercisable after a three to five-year vesting period starting one year after the date of grant and generally expire ten years from the date of grant. Restricted shares have a vesting schedule ranging from 1-3 years.
	Stock-based compensation expense for share-based payment awards is based on the grant date fair value estimated on the date of grant. The Company recognizes compensation costs for those shares expected to vest on a straight-line basis over the requisite service period of the award, which is generally the option vesting term of three years. The Company estimates the forfeiture rate based on its historical experience during the preceding seven fiscal years.
	Under the principal stock-based compensation plans, the Company may also grant stock awards to certain employees. Stock awards are independent of option grants and are generally subject to forfeiture if employment terminates prior to the release of any applicable restrictions. During that period, ownership of the shares cannot be transferred. Restricted stock and stock awards that are fully vested at the time of grant have the same cash dividend and voting rights as other common stock and are considered to be currently issued and outstanding. The Company expenses the cost of stock awards, which is determined to be the fair market value of the shares at the date of grant, ratably over the period during which any restrictions lapse.
	There were 89,104 and 18,829 restricted stock awards outstanding at March 31, 2015 and March 31, 2014, respectively. These awards were issued with an award price equal to the market price of the Company’s common stock on the award date and with a three year vesting period. Forfeiture provisions exist for personnel that separate employment before the vesting period expires. A total of 37,110 shares of restricted stock became fully vested on July 1, 2014.
	There were 0 shares of common stock underlying options that were granted during the three months ended March 31, 2015 and 2014, respectively.
	Options activity under the stock-based compensation plans as of March 31, 2015 and changes during the three months ended March 31, 2015 were as follows:
		Shares			Weighted-		Weighted-		Aggregate
					Average		Average		Intrinsic
					Exercise		Remaining		Value
					Price		Contractual
							Term (Years)
	Outstanding at December 31, 2014		882,657		$	5.65
	Exercised		(110,500	)	$	3.85
	Canceled/expired		—
	Forfeited		(3,362	)
	Outstanding at March 31, 2015		768,795		$	5.87		2.67	$	10,273,607
	Exercisable at March 31, 2015		763,028		$	5.8		2.62	$	10,244,830
	The aggregate intrinsic value of options above represents the total pre-tax intrinsic value (the difference between the Company’s closing stock price on the last trading day of the first quarter of 2015 and the exercise price, multiplied by the number of in-the-money options) that would have been received by the option holders had all option holders exercised their options on March 31, 2015. This amount changes based on the fair value of the Company’s stock.
	In conjunction with the plans above, the Company granted restricted shares to certain executive officers. Compensation expense is recognized over the vesting period of the awards based on the fair value of the stock at issue date. The fair value of the stock granted was based on the closing market price of its common stock as of the grant date. Generally, grants of restricted shares vest one-third, each, on the first, second and third anniversaries of the grant date.
		Nonvested Shares			Weighted-
					Average
					Grant Date
					Fair Value
	Nonvested at December 31, 2014		50,203		$	11.79
	Granted		59,466			18.47
	Vested		(20,565	)		10.76
	Forfeited/cancelled/expired		—			—
	Outstanding at March 31, 2015		89,104		$	16.43
	As of March 31, 2015, there was approximately $35,500 of total unrecognized compensation expense relating to unvested stock options. As of March 31, 2015, there was approximately $1,358,000 of total unrecognized compensation expense relating to unvested restricted stock awards. These costs are expected to be recognized over a weighted average period of 2.1 years.

Components_of_Net_Periodic_Pen

Components of Net Periodic Pension Cost	3 Months Ended
	Mar. 31, 2015
Compensation and Retirement Disclosure [Abstract]
Pension and Other Postretirement Benefits Disclosure [Text Block]	Note 10. Components of Net Periodic Pension Cost
	The Company maintained a non-contributory defined benefit pension plan for substantially all of its employees until March 31, 2007, at which time the Company froze the plan. The following table sets forth the net periodic pension cost of the Company’s pension plan for the periods indicated.
		Three Months Ended
		March 31,
		2015			2014
	Interest cost	$	138		$	144
	Expected return on plan assets		(137	)		(149	)
	Net amortization		108			56
	Recognized settlement loss		450			—
	Total periodic pension expense	$	559		$	51
	Net actuarial gain	$	(742	)	$	(1,281	)
	Total recognized in other comprehensive income	$	(742	)	$	(1,281	)
	Total recognized in net periodic expense and other comprehensive income (before tax)	$	(183	)	$	(1,230	)
	Contributions
	The Company presently estimates that it will contribute $2.0 million to its Pension Trust in 2015. The trust is established to provide retirement and other benefits for eligible employees and their beneficiaries. No part of the trust assets may be applied to any purpose other than providing benefits under the plan and for defraying expenses of administering the plan and the trust.

FHLB_and_other_borrowings

FHLB and other borrowings	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	Note 11. FHLB and other borrowings
	The Company’s FHLB and other borrowings and weighted average interest rates are summarized below:
		31-Mar-15			31-Dec-14
		Amount		Rate	Amount		Rate
		(in thousands)
	By type of borrowing:
	FHLB borrowings	$	494,148	1.23%	$	464,553	1.18%
	Repurchase agreements		31,000	5.90%		31,000	5.90%
	Total borrowings	$	525,148	1.51%	$	495,553	1.48%
	By remaining period to maturity:
	One year or less	$	238,148	0.50%		258,553	0.50%
	One to two years		55,000	1.20%		30,000	1.40%
	Two to three years		71,000	2.33%		71,000	2.33%
	Three to four years		96,000	2.67%		96,000	2.67%
	Four to five years		25,000	1.85%		—	—
	Greater than five years		40,000	3.43%		40,000	3.42%
	Total borrowings	$	525,148	1.51%	$	495,553	1.48%
	The FHLB borrowings are secured by pledges of certain collateral, including but not limited to U.S. government and agency mortgage-backed securities and a blanket assignment of qualifying first lien mortgage loans, consisting of both residential mortgages and commercial real estate loans.
	The Company has entered into agreements under which it has sold securities subject to an obligation to repurchase the same or similar securities. Under these arrangements, the Company may transfer legal control over the assets but still retain effective control through an agreement that both entitles and obligates the Company to repurchase the assets. The obligation to repurchase the securities is reflected as a liability in the Company’s consolidated statement of condition, while the securities underlying the securities sold under agreements to repurchase remain in the respective asset accounts and are delivered to and held as collateral by third party trustees.
	Three of the FHLB notes ($2,500,000 and $7,500,000 each due April 2, 2018, and $5,000,000 due July 16, 2018) contain a convertible option which allows the FHLB, at quarterly intervals, to convert the fixed convertible advance into replacement funding for the same or lesser principal based on any advance then offered by the FHLB at its current market rate. The Company has the option to repay these advances, if converted, without penalty. The remaining advances are payable at its stated maturity, with a prepayment penalty for fixed rate advances. All FHLB advances are fixed rate while the REPOs are variable rate advances. The advances at March 31, 2015 were collateralized by approximately $809 million of commercial mortgage loans, net of required over collateralization amounts, under a blanket lien arrangement. At March 31, 2015 the Company had remaining borrowing capacity of approximately $315 million.

Subordinated_Debentures

Subordinated Debentures	3 Months Ended
	Mar. 31, 2015
Subordinated Borrowings [Abstract]
Subordinated Borrowings Disclosure [Text Block]	Note 12 - Subordinated Debentures:
	During 2003, the Company formed a statutory business trust, which exists for the exclusive purpose of (i) issuing Trust Securities representing undivided beneficial interests in the assets of the Trust; (ii) investing the gross proceeds of the Trust securities in junior subordinated deferrable interest debentures (subordinated debentures) of the Company; and (iii) engaging in only those activities necessary or incidental thereto. On December 19, 2003, Center Bancorp Statutory Trust II, a statutory business trust and wholly-owned subsidiary of the Parent Corporation issued $5.0 million of, MMCapS capital securities to investors due on January 23, 2034. The capital securities presently qualify as Tier I capital. The trust loaned the proceeds of this offering to the Company and received in exchange $5.2 million of the Parent Corporation’s subordinated debentures. The subordinated debentures are redeemable in whole or in part prior to maturity. The floating interest rate on the subordinate debentures is three-month LIBOR plus 2.85% and reprices quarterly. The rate at March 31, 2015 was 3.10%. These subordinated debentures and the related income effects are not eliminated in the consolidated financial statements as the statutory business trust is not consolidated in accordance with FASB ASC 810-10. Distributions on the subordinated debentures owned by the subsidiary trust have been classified as interest expense in the Consolidated Statements of Income.
	The following table summarizes the mandatory redeemable trust preferred securities of the Company’s Statutory Trust II at March 31, 2015.
	Issuance Date	Securities		Liquidation Value	Coupon Rate	Maturity	Redeemable by
		Issued					Issuer Beginning
	12/19/03	$	5,000,000	$1,000 per Capital Security	Floating 3-month LIBOR + 285 Basis Points	1/23/34	1/23/09
	The following table summarizes the mandatory redeemable trust preferred securities of the Company’s Statutory Trust II at December 31, 2014.
	Issuance Date	Securities		Liquidation Value	Coupon Rate	Maturity	Redeemable by
		Issued					Issuer Beginning
	12/19/03	$	5,000,000	$1,000 per Capital Security	Floating 3-month LIBOR + 285 Basis Points	1/23/34	1/23/09

Subsequent_Event

Subsequent Event	3 Months Ended
	Mar. 31, 2015
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Note 13 – Subsequent Event
	On April 27, 2015, the Corporation received a pretax recovery amounting to $2.2 million from one of its insurance carriers with regard to a wire fraud pretax loss of $2.4 million recorded in the fourth quarter of 2014. This recovery will be recognized in the second quarter of 2015. At this time, the Corporation does not expect any further recoveries on this matter.

Accounting_Policies_by_Policy_

Accounting Policies, by Policy (Policies)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	The consolidated financial statements of ConnectOne Bancorp, Inc. (the “Parent Corporation”) are prepared on an accrual basis and include the accounts of the Parent Corporation and its wholly-owned subsidiary, ConnectOne Bank (the “Bank” and, collectively with the Parent Corporation and the Parent Corporation’s other direct and indirect subsidiaries, the “Company”). All significant intercompany accounts and transactions have been eliminated from the accompanying consolidated financial statements
Use of Estimates, Policy [Policy Text Block]	In preparing the consolidated financial statements, management has made estimates and assumptions that affect the reported amounts of assets and liabilities as of the dates of the consolidated statements of condition and that affect the results of operations for the periods presented. Actual results could differ significantly from those estimates. Material estimates that are particularly susceptible to change in the near term relate to the determination of the allowance for loan and lease losses, the other-than-temporary impairment evaluation of securities, the evaluation of the impairment of goodwill and the evaluation of deferred tax assets
Basis of Accounting, Policy [Policy Text Block]	The consolidated financial statements have been prepared in conformity with U.S. generally accepted accounting principles (“U.S. GAAP”). Some items in the prior year financial statements were reclassified to conform to current presentation. Reclassifications had no effect on prior year net income for stockholders’ equity
Fair Value of Financial Instruments, Policy [Policy Text Block]	Fair Value of Financial Instruments
	FASB ASC 825-10 requires all entities to disclose the estimated fair value of their financial instrument assets and liabilities. For the Company, as for most financial institutions, the majority of its assets and liabilities are considered financial instruments as defined in FASB ASC 825-10. Many of the Company’s financial instruments, however, lack an available trading market as characterized by a willing buyer and willing seller engaging in an exchange transaction. It is also the Company’s general practice and intent to hold its financial instruments to maturity and not to engage in trading or sales activities except for loans held-for-sale and investment securities available-for-sale. Therefore, significant estimations and assumptions, as well as present value calculations, were used by the Company for the purposes of this disclosure.

Business_Combinations_Tables

Business Combinations (Tables)	3 Months Ended
	Mar. 31, 2015
Business Combinations [Abstract]
Schedule of Business Acquisitions, by Acquisition [Table Text Block]	The table below summarizes the amounts recognized as of the Merger date for each major class of assets acquired and liabilities assumed, the estimated fair value adjustments and the amounts recorded in the Company’s financial statements at fair value at the Merger date (in thousands):
			Legacy			Fair value				As recorded
			ConnectOne			adjustments				at
			carrying value							acquisition
	Cash and cash equivalents		$	70,318		$	—			$	70,318
	Investment securities			28,436			16		(a)		28,452
	Restricted stock			13,646			—				13,646
	Loans held for sale			190			—				190
	Loans			1,304,600			(5,316	)	(b)		1,299,284
	Bank owned life insurance			15,481			—				15,481
	Premises and equipment			7,380			(905	)	(c)		6,475
	Accrued interest receivable			4,470			—				4,470
	Core deposit and other intangibles			—			5,308		(d)		5,308
	Other real estate owned			2,455			—				2,455
	Other assets			10,636			3,650		(e)		14,286
	Deposits			(1,049,666	)		(1,676	)	(f)		(1,051,342	)
	FHLB borrowings			(262,046	)		(1,324	)	(g)		(263,370	)
	Other liabilities			(10,527	)		—				(10,527	)
	Total identifiable net assets		$	135,373		$	(247	)		$	135,126
	Goodwill recorded in the Merger									$	129,105
		a)	Represents the fair value adjustment on investment securities held to maturity.
		b)	Represents the elimination of Legacy ConnectOne’s allowance for loan and lease losses, deferred fees, deferred costs and an adjustment of the amortized cost of loans to estimated fair value, which includes an interest rate mark and credit mark.
		c)	Represent an adjustment to reflect the fair value of above-market rent on leased premises. The above-market rent adjustment will be amortized on a straight-line basis over the remaining term of the respective leases.
		d)	Represents intangible assets recorded to reflect the fair value of core deposits. The core deposit asset was recorded as an identifiable intangible asset and will be amortized on an accelerated basis over the estimated average life of the deposit base.
		e)	Consist primarily of adjustments in net deferred tax assets resulting from the fair value adjustments related to acquired assets, liabilities assumed and identifiable intangibles recorded.
		f)	Represents fair value adjustment on time deposits as the weighted average interest rates of time deposits assumed exceeded the costs of similar funding available in the market at the time of the Merger, as well as the elimination of fees paid on brokered time deposits.
		g)	Represents the fair value adjustment on FHLB borrowings as the weighted average interest rate of FHLB borrowings assumed exceeded the cost of similar funding available in the market at the time of the Merger.
Schedule of Accountable Loans for Business Combinations in Accordance with FASB ASC 310-30 [Table Text Block]	The acquired loan portfolio subject to purchased credit impairment accounting guidance (ASC 310-30) as of July 1, 2014 was comprised of collateral dependent loans with deteriorated credit quality as follows (in thousands):
			ASC 310-30
			Loans
	Contractual principal and accrued interest at acquisition		$	23,284
	Principal not expected to be collected (non-accretable discount)			(6,942	)
	Expected cash flows at acquisition			16,342
	Interest component of expected cash flows (accretable discount)			(5,013	)
	Fair value of acquired loans		$	11,329

Earnings_per_Common_Share_Tabl

Earnings per Common Share (Tables)	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Earnings per common share have been computed as follows:
		Three Months Ended
		March 31,
	(in thousands, except for per share data)	2015			2014
	Net income	$	10,379		$	4,398
	Preferred stock dividends		(28	)		(28	)
	Net income available to common stockholders	$	10,351		$	4,370
	Basic weighted average common shares outstanding		29,757			16,350
	Effect of dilutive options		392			56
	Diluted weighted average common shares outstanding		30,149			16,406
	Earnings per common share:
	Basic	$	0.35		$	0.27
	Diluted		0.34			0.27

Investment_Securities_Tables

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2015
Investments, Debt and Equity Securities [Abstract]
Unrealized Gain (Loss) on Investments [Table Text Block]	The following tables present information related to the Company’s investment securities at March 31, 2015 and December 31, 2014.
		31-Mar-15
		Amortized		Gross			Gross			Fair
		Cost		Unrealized			Unrealized			Value
				Gains			Losses
		31-Mar-15
		(in thousands)
	Investment securities available-for-sale:
	Federal agency obligations	$	30,774	$	463		$	(4	)	$	31,233
	Residential mortgage pass-through securities		57,300		1,737			(9	)		59,028
	Commercial mortgage pass-through securities		3,027		55			—			3,082
	Obligations of U.S. states and political subdivisions		8,197		238			—			8,435
	Trust preferred securities		16,086		648			(278	)		16,456
	Corporate bonds and notes		110,671		6,190			(22	)		116,839
	Asset-backed securities		26,045		127			(80	)		26,092
	Certificates of deposit		2,097		31			(5	)		2,123
	Equity securities		376		—			(56	)		320
	Other securities		12,474		89			(50	)		12,513
	Total	$	267,047	$	9,578		$	(504	)	$	276,121
	Investment securities held-to-maturity:
	U.S. Treasury and agency securities	$	28,315	$	1,507		$	—		$	29,822
	Federal agency obligations		35,393		586			(30	)		35,949
	Residential mortgage-backed securities		5,542		26			(13	)		5,555
	Commercial mortgage-backed securities		4,124		86			—			4,210
	Obligations of U.S. states and political subdivisions		119,384		4,966			(46	)		124,304
	Corporate bonds and notes		38,962		1,472			(11	)		40,423
	Total	$	231,720	$	8,643		$	(100	)	$	240,263
	Total investment securities	$	498,767	$	18,221		$	(604	)	$	516,384
		Amortized		Gross			Gross			Fair
		Cost		Unrealized			Unrealized			Value
				Gains			Losses
		31-Dec-14
		(in thousands)
	Investment securities available-for-sale:
	Federal agency obligations	$	32,650	$	217		$	(50	)	$	32,817
	Residential mortgage pass-through securities		58,836		1,531			(11	)		60,356
	Commercial mortgage pass-through securities		3,042		4			—			3,046
	Obligations of U.S. states and political subdivisions		8,201		205			—			8,406
	Trust preferred securities		16,086		489			(269	)		16,306
	Corporate bonds and notes		119,838		5,950			(11	)		125,777
	Asset-backed securities		27,393		140			(31	)		27,502
	Certificates of deposit		2,098		27			(2	)		2,123
	Equity securities		376		—			(69	)		307
	Other securities		12,941		33			(82	)		12,892
	Total	$	281,461	$	8,596		$	(525	)	$	289,532
	Investment securities held-to-maturity:
	U.S. Treasury and agency securities	$	28,264	$	920		$	—		$	29,184
	Federal agency obligations		27,103		322			(28	)		27,397
	Residential mortgage-backed securities		5,955		28			—			5,983
	Commercial mortgage-backed securities		4,266		50			—			4,316
	Obligations of U.S. states and political subdivisions		120,144		4,512			(60	)		124,596
	Corporate bonds and notes		38,950		1,026			(7	)		39,969
	Total	$	224,682	$	6,858		$	(95	)	$	231,445
	Total investment securities	$	506,143	$	15,454		$	(620	)	$	520,977
Investments Classified by Contractual Maturity Date [Table Text Block]	The following table presents information for investment securities available-for-sale at March 31, 2015, based on scheduled maturities. Actual maturities can be expected to differ from scheduled maturities due to prepayment or early call options of the issuer.
		31-Mar-15
		Amortized		Fair
		Cost		Value
		(in thousands)
	Investment securities available-for-sale:
	Due in one year or less	$	23,891	$	24,248
	Due after one year through five years		32,274		33,611
	Due after five years through ten years		83,910		88,819
	Due after ten years		53,795		54,500
	Residential mortgage pass-through securities		57,300		59,028
	Commercial mortgage pass-through securities		3,027		3,082
	Equity securities		376		320
	Other securities		12,474		12,513
	Total	$	267,047	$	276,121
	Investment securities held-to-maturity:
	Due in one year or less	$	4,991	$	5,020
	Due after one year through five years		9,207		9,401
	Due after five years through ten years		71,916		75,354
	Due after ten years		135,940		140,723
	Residential mortgage-backed securities		5,542		5,555
	Commercial mortgage-backed securities		4,124		4,210
	Total	$	231,720	$	240,263
	Total investment securities	$	498,767	$	516,384
Schedule of Realized Gain (Loss) [Table Text Block]	Gross gains and losses from the sales, calls, and maturities of investment securities for the three months ended March 31, 2015 and 2014 were as follows:
		Three Months Ended
		March 31,
	(in thousands)	2015		2014
	Proceeds	$	9,537	$	50,611
	Gross gains on sales of investment securities		506		1,432
	Gross losses on sales of investment securities		—		(17	)
	Net gains on sales of investment securities		506		1,415
	Less: tax provision on net gains		207		380
	Total	$	299	$	1,035
Schedule of Preferred Security and Associated Ratings [Table Text Block]	The following table presents detailed information for each single issuer trust preferred security held by the Company at March 31, 2015, of which all but one has at least one rating below investment grade (in thousands):
	Issuer	Amortized		Fair			Gross			Lowest
		Cost		Value			Unrealized			Credit
							Gain (Loss)			Rating
										Assigned
	Countrywide Capital IV	$	1,771	$	1,819		$	48		BB
	Countrywide Capital V		2,747		2,848			101		BB
	Countrywide Capital V		250		259			9		BB
	Nationsbank Cap Trust III		1,575		1,297			(278	)	BB
	Morgan Stanley Cap Trust IV		2,500		2,567			67		BB
	Morgan Stanley Cap Trust IV		1,743		1,795			52		BB
	Goldman Sachs		1,000		1,252			252		BB
	Stifel Financial		4,500		4,619			119		BBB-
	Total	$	16,086	$	16,456		$	370
Schedule of Unrealized Loss on Investments [Table Text Block]	The following tables indicate gross unrealized losses not recognized in income and fair value, aggregated by investment category and the length of time individual securities have been in a continuous unrealized loss position at March 31, 2015 and December 31, 2014:
		31-Mar-15
		Total					Less than 12 Months						12 Months or Longer
		Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
		Value		Losses			Value			Losses			Value		Losses
		(in thousands)
	Investment securities available-for-sale:
	Federal agency obligation	$	1,656	$	(4	)	$	1,357		$	(1	)	$	299	$	(3	)
	Residential mortgage pass-through securities		1,026		(9	)		1,026			(9	)		—		—
	Trust preferred securities		1,297		(278	)		—			—			1,297		(278	)
	Corporate bonds and notes		3,935		(22	)		3,935			(22	)		—		—
	Asset-backed securities		9,698		(80	)		9,698			(80	)		—		—
	Certificates of deposit		217		(5	)		217			(5	)		—		—
	Equity securities		320		(56	)		—			—			320		(56	)
	Other securities		5,477		(50	)		—			—			5,477		(50	)
	Total	$	23,626	$	(504	)	$	16,233		$	(117	)	$	7,393	$	(387	)
	Investment securities held-to-maturity:
	Federal agency obligation	$	6,422	$	(30	)	$	6,422		$	(30	)	$	—	$	—
	Residential mortgage pass-through securities		3,660		(13	)		3,660			(13	)		—		—
	Obligations of U.S. states and political subdivisions		7,336		(46	)		7,336			(46	)		—		—
	Corporate bonds and notes		3,720		(11	)		3,720			(11	)		—		—
	Total	$	21,138	$	(100	)	$	21,138		$	(100	)	$	—	$	—
	Total temporarily impaired securities	$	44,764	$	(604	)	$	37,371		$	(217	)	$	7,393	$	(387	)
		31-Dec-14
		Total					Less than 12 Months						12 Months or Longer
		Fair		Unrealized			Fair			Unrealized			Fair		Unrealized
		Value		Losses			Value			Losses			Value		Losses
		(in thousands)
	Investment securities available-for-sale:
	Federal agency obligation	$	6,755	$	(50	)	$	2,770		$	(9	)	$	3,985	$	(41	)
	Residential mortgage pass-through securities		5,694		(11	)		5,694			(11	)		—		—
	Trust preferred securities		1,307		(269	)		—			—			1,307		(269	)
	Corporate bonds and notes		1,961		(11	)		1,961			(11	)		—		—
	Asset-backed securities		9,773		(31	)		9,773			(31	)		—		—
	Certificates of deposit		369		(2	)		369			(2	)		—		—
	Equity securities		307		(69	)		—			—			307		(69	)
	Other securities		5,417		(82	)		1,978			(21	)		3,439		(61	)
	Total	$	31,583	$	(525	)	$	22,545		$	(85	)	$	9,038	$	(440	)
	Investment securities held-to-maturity:
	Federal agency obligation	$	3,228	$	(28	)	$	3,228		$	(28	)	$	—	$	—
	Obligations of U.S. states and political subdivisions		8,341		(60	)		1,401			(3	)		6,940		(57	)
	Corporate bonds and notes		993		(7	)		993			(7	)		—		—
	Total	$	12,562	$	(95	)	$	5,622		$	(38	)	$	6,940	$	(57	)
	Total temporarily impaired securities	$	44,145	$	(620	)	$	28,167		$	(123	)	$	15,978	$	(497	)

Derivatives_Tables

Derivatives (Tables)	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Interest Rate Derivatives [Table Text Block]	Summary information about the interest rate swaps designated as cash flow hedges as of period-end is as follows:
	(dollars in thousands)	March 31,			March 31,			December 31,
		2015			2014			2014
	Notional amount	$	50,000		$	—		$	50,000
	Weighted average pay rates		1.58	%		—	%		1.58	%
	Weighted average receive rates		0.25	%		—	%		0.24	%
	Weighted average maturity		4.2 years			—			4.4 years
	Fair value	$	(486	)	$	—		$	48
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block]	The following table presents the net gains (losses), recorded in other comprehensive income and the Consolidated Statements of Income relating to the cash flow derivative instruments for the three months ended March 31, 2015:
	(in thousands)	Amount of gain			Amount of gain			Amount of gain
		(loss) recognized			(loss) reclassified			(loss)
		in OCI (Effective			from OCI to			recognized in other
		Portion)			interest income			Non-interest income (Ineffective Portion)
	Interest rate contracts	$	(534	)	$	—		$	—

Loans_and_the_Allowance_for_Lo1

Loans and the Allowance for Loan and Lease Losses (Tables)	3 Months Ended
	Mar. 31, 2015
Receivables [Abstract]
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]	The following table sets forth the composition of the Company’s loan portfolio, including net deferred loan fees, at March 31, 2015 and December 31, 2014:
		March 31,			December 31,
		2015			2014
		(in thousands)
	Commercial	$	562,931		$	499,816
	Commercial real estate		1,668,310			1,634,510
	Commercial construction		181,056			167,359
	Residential real estate		226,645			234,967
	Consumer		3,581			2,879
	Gross loans		2,642,523			2,539,531
	Net deferred loan fees		(1,784	)		(890	)
	Total loans receivable	$	2,640,739		$	2,538,641
Loans and Leases Receivable Purchase Credit Impaired Loans [Table Text Block]	The carrying amount of those loans is as follows at March 31, 2015 and December 31, 2014.
		March 31,			December 31,
		2015			2014
		(in thousands)
	Commercial	$	7,146		$	7,199
	Commercial real estate		1,807			1,816
	Residential real estate		819			806
	Total carrying amount	$	9,772		$	9,821
Loans and Leases Receivable Purchased Loans [Table Text Block]	The accretable yield, or income expected to be collected, on the purchased loans for the three months ended March 31, 2015 is as follows (in thousands):
		March 31,
		2015
	Balance at January 1, 2015	$	4,805
	New loans purchased		—
	Accretion of income		(54	)
	Reclassifications from non-accretable difference		—
	Disposals		—
	Balance at March 31, 2015	$	4,751
Schedule of Financing Receivables, Non Accrual Status [Table Text Block]	The following table presents information about the recorded investment in loan receivables on nonaccrual status by class at March 31, 2015 and December 31, 2014:
		March 31,			December 31,
		2015			2014
		(in thousands)
	Commercial	$	3,347		$	616
	Commercial real estate		8,009			8,197
	Residential real estate		3,229			2,796
	Total loans receivable on nonaccrual status	$	14,585		$	11,609
Financing Receivable Credit Quality Indicators [Table Text Block]	The following table presents information, excluding net deferred loan fees, about the Company’s loan credit quality at March 31, 2015 and December 31, 2014:
		31-Mar-15
		Pass			Special			Substandard		Doubtful			Total
					Mention
		(in thousands)
	Commercial	$	528,431		$	23,975		$	10,249	$	276		$	562,931
	Commercial real estate		1,621,181			24,509			22,620		—			1,668,310
	Commercial construction		179,577			1,479			—		—			181,056
	Residential real estate		223,148			—			3,497		—			226,645
	Consumer		3,484			—			97		—			3,581
	Total loans	$	2,555,821		$	49,963		$	36,463	$	276		$	2,642,523
		31-Dec-14
		Pass			Special			Substandard		Doubtful			Total
					Mention
		(in thousands)
	Commercial	$	481,638		$	3,686		$	14,203	$	289		$	499,816
	Commercial real estate		1,596,606			14,140			23,764		—			1,634,510
	Commercial construction		165,880			1,479			—		—			167,359
	Residential real estate		230,772			—			4,195		—			234,967
	Consumer		2,778			—			101		—			2,879
	Total loans	$	2,477,674		$	19,305		$	42,263	$	289		$	2,539,531
Impaired Financing Receivables [Table Text Block]	The following table provides an analysis of the impaired loans, by loan segment, at March 31, 2015 and December 31, 2014:
		31-Mar-15
		Recorded			Unpaid			Related
		Investment			Principal			Allowance
					Balance
	No related allowance recorded	(in thousands)
	Commercial	$	314		$	334		$	—
	Commercial real estate		5,774			6,468			—
	Residential real estate		3,505			3,869			—
	Consumer		105			97			—
	Total	$	9,698		$	10,768		$	—
	With an allowance recorded
	Commercial	$	382		$	390		$	188
	Commercial real estate		6,341			6,341			518
	Total	$	6,723		$	6,731		$	706
	Total
	Commercial	$	696		$	724		$	188
	Commercial real estate		12,115			12,809			518
	Residential real estate		3,505			3,869			—
	Consumer		105			97			—
	Total	$	16,421		$	17,499		$	706
		31-Dec-14
		Recorded			Unpaid			Related
		Investment			Principal			Allowance
					Balance
	No related allowance recorded	(in thousands)
	Commercial	$	481		$	527		$	—
	Commercial real estate		5,890			6,587			—
	Residential real estate		3,072			3,407			—
	Consumer		109			101			—
	Total	$	9,552		$	10,622		$	—
	With an allowance recorded
	Commercial	$	387		$	390		$	111
	Commercial real estate		3,520			3,520			151
	Total	$	3,907		$	3,910		$	262
	Total
	Commercial	$	868		$	917		$	111
	Commercial real estate		9,410			10,107			151
	Residential real estate		3,072			3,407			—
	Consumer		109			101			—
	Total	$	13,459		$	14,532		$	262
Schedule of Average Balance and Interest Income Recognized on Impaired Loans [Table Text Block]	The following table provides an analysis related to the average recorded investment and interest income recognized on impaired loans by segment as of and for the three months ended March 31, 2015 and 2014 (in thousands):
		Three Months Ended March 31,
		2015						2014
		Average			Interest			Average		Interest
		Recorded			Income			Recorded		Income
		Investment			Recognized			Investment		Recognized
	Impaired loans with no related allowance recorded
	Commercial	$	290		$	—		$	—	$	—
	Commercial real estate		6,052			19			1,275		57
	Residential real estate		3,613			2			—		—
	Consumer		106			1			—		—
	Total	$	10,061		$	22		$	1,275	$	57
	Impaired loans with an allowance recorded
	Commercial	$	387		$	—		$	—	$	—
	Commercial real estate		6,335			—			2,302		68
	Residential real estate		—			—			1,226		31
	Total	$	6,722		$			$	3,528	$	99
	Total impaired loans
	Commercial	$	677		$	—		$	—	$	—
	Commercial real estate		12,387			19			3,477		125
	Residential real estate		3,613			2			1,226		31
	Consumer		106			1			—		—
	Total	$	16,783		$	22		$	4,703	$	156
Past Due Financing Receivables [Table Text Block]	The following table provides an analysis of the aging of the recorded investment of loans, excluding net deferred loan fees that are past due at March 31, 2015 and December 31, 2014 by segment:
		31-Mar-15
		30-59 Days			60-89 Days			90 Days or		Total Past			Current			Total Loans			Loans
		Past Due			Past Due			Greater Past		Due						Receivable			Receivable 90
								Due											Days or Greater
																			Past Due and
																			Accruing
		(in thousands)
	Commercial	$	5,562		$	554		$	3,899	$	10,015		$	552,916		$	562,931		$	638
	Commercial real estate		2,567			5,092			4,180		11,839			1,656,471			1,668,310			—
	Commercial construction		375			—			—		375			180,681			181,056			—
	Residential real estate		1,925			—			2,937		4,862			221,783			226,645			—
	Consumer		2			1			—		3			3,578			3,581
	Total	$	10,431		$	5,647		$	11,016	$	27,094		$	2,615,429		$	2,642,523		$	638
		31-Dec-14
		30-59 Days			60-89 Days			90 Days or		Total Past			Current			Total Loans			Loans
		Past Due			Past Due			Greater Past		Due						Receivable			Receivable 90
								Due											Days or Greater
																			Past Due and
																			Accruing
		(in thousands)
	Commercial	$	6,060		$	—		$	662	$	6,722		$	493,094		$	499,816		$	45
	Commercial real estate		4,937			638			5,961		11,535			1,622,975			1,634,510			609
	Commercial construction		—			—			—		—			167,359			167,359			—
	Residential real estate		1,821			210			3,200		5,231			229,736			234,967			557
	Consumer		30			1			—		31			2,848			2,879			—
	Total	$	12,848		$	849		$	9,823	$	23,519		$	2,516,012		$	2,539,531		$	1,211
Schedule of Recorded Investment in Financing Receivables [Table Text Block]	The following table details the amount of loans receivable that are evaluated individually, and collectively, for impairment (excluding net deferred loan fees), acquired, and the related portion of the allowance for loan and lease losses that are allocated to each loan portfolio segment:
		31-Mar-15
		Commercial			Commercial			Commercial		Residential			Consumer			Unallocated			Total
					real estate			construction		real estate
		(in thousands)
	Allowance for loan and lease losses
	Individually evaluated for impairment	$	188		$	518		$	—	$	—		$	—		$	—		$	706
	Collectively evaluated for impairment		3,739			8,328			1,518		981			4			657			15,227
	Acquired with deteriorated credit quality		—			—			—		—			—			—			—
	Total	$	3,927		$	8,846		$	1,518	$	981		$	4		$	657		$	15,933
	Loans receivable
	Individually evaluated for impairment	$	696		$	12,115		$	—	$	3,905		$	105		$	—		$	16,421
	Collectively evaluated for impairment		555,089			1,654,388			181,056		222,321			3,476			—			2,616,330
	Acquired with deteriorated credit quality		7,146			1,807			—		819			—			—			9,772
	Total	$	562,931		$	1,668,310		$	181,056	$	226,645		$	3,581		$	—		$	2,642,523
		31-Dec-14
		Commercial			Commercial			Commercial		Residential			Consumer			Unallocated			Total
					real estate			construction		real estate
		(in thousands)
	Allowance for loan and lease losses
	Individually evaluated for impairment	$	111		$	151		$	—	$	—		$	—		$	—		$	262
	Collectively evaluated for impairment		2,972			7,648			1,239		1,113			7			919			13,898
	Acquired with deteriorated credit quality		—			—			—		—			—			—			—
	Total	$	3,083		$	7,799		$	1,239	$	1,113		$	7		$	919		$	14,160
	Loans receivable
	Individually evaluated for impairment	$	452		$	6,284		$	—	$	2,180		$	101		$	—		$	9,017
	Collectively evaluated for impairment		492,165			1,626,410			167,359		231,981			2,778			—			2,520,693
	Acquired with deteriorated credit quality		7,199			1,816			—		806			—			—			9,821
	Total	$	499,816		$	1,634,510		$	167,359	$	234,967		$	2,879		$	—		$	2,539,531
Allowance for Credit Losses on Financing Receivables [Table Text Block]	A summary of the activity in the allowance for loan and lease losses is as follows:
		Three Months Ended March 31, 2015
		Commercial			Commercial			Commercial		Residential			Consumer			Unallocated			Total
					real estate			construction		real estate
		(in thousands)
	Balance at January 1, 2015	$	3,083		$	7,799		$	1,239	$	1,113		$	7		$	919		$	14,160
	Charge-offs		(45	)		(4	)		—		—			(11	)		—			(60	)
	Recoveries		6			—			—		1			1			—			8
	Provision		883			1,051			279		(133	)		7			(262	)		1,825
	Balance at March 31, 2015	$	3,927		$	8,846		$	1,518	$	981		$	4		$	657		$	15,933
		Three Months Ended March 31, 2014
		Commercial			Commercial			Commercial		Residential			Consumer			Unallocated			Total
					real estate			construction		real estate
		(in thousands)
	Balance at January 1, 2014	$	1,698		$	5,746		$	362	$	990		$	146		$	1,391		$	10,333
	Charge-offs		(333	)		—			—		—			(3	)		—			(336	)
	Recoveries		—			—			—		10			1			—			11
	Provision		860			(362	)		72		4			(65	)		116			625
	Balance at March 31, 2014	$	2,225		$	5,384		$	434	$	1,004		$	79		$	1,507		$	10,663
Schedule of Debtor Troubled Debt Restructuring, Current Period [Table Text Block]	The following table presents loans by segment modified as troubled debt restructurings that occurred during the year ended March 31, 2014 (dollars in thousands):
					Pre-Modification			Post-Modification
					Outstanding			Outstanding
		Number of			Recorded			Recorded
		Loans			Investment			Investment
	Troubled debt restructurings:
	Commercial		1		$	672		$	337

Fair_Value_Measurements_and_Fa1

Fair Value Measurements and Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	For financial assets and liabilities measured at fair value on a recurring basis, the fair value measurements by level within the fair value hierarchy used at March 31, 2015 and December 31, 2014 are as follows:
					31-Mar-15
					Fair Value Measurements at Reporting Date Using
					Quoted Prices			Significant		Significant
					in Active			Other		Unobservable
					Markets for			Observable		Inputs
					Identical			Inputs		(Level 3)
					Assets			(Level 2)
					(Level 1)
	(in thousands)
	Recurring fair value measurements:
	Assets
	Investment securities:
	Available-for-sale:
	Federal agency obligations	$	31,233		$	—		$	31,233	$	—
	Residential mortgage pass-through securities		59,028			—			59,028		—
	Commercial mortgage pass-through securities		3,082			—			3,082		—
	Obligations of U.S. states and political subdivision		8,435			—			8,435		—
	Trust preferred securities		16,456			—			16,456		—
	Corporate bonds and notes		116,839			—			116,839		—
	Asset-backed securities		26,092			—			26,092		—
	Certificates of deposit		2,123			—			2,123		—
	Equity securities		320			320			—		—
	Other securities		12,513			12,513			—		—
	Total available-for-sale		276,121			12,833			263,288		—
	Loans held for sale		1,392			—			1,392		—
	Total assets	$	277,513		$	12,833		$	264,680	$	—
	Liabilities
	Derivatives	$	486		$	—		$	486	$	—
	Total liabilities	$	486		$	—		$	486	$	—
					31-Dec-14
					Fair Value Measurements at Reporting Date Using
					Quoted Prices			Significant		Significant
					in Active			Other		Unobservable
					Markets for			Observable		Inputs
					Identical			Inputs		(Level 3)
					Assets			(Level 2)
					(Level 1)
	(in thousands)
	Recurring fair value measurements:
	Assets
	Investment securities:
	Available-for-sale:
	Federal agency obligations	$	32,817		$	—		$	32,817	$	—
	Residential mortgage pass-through securities		60,356			—			60,356		—
	Commercial mortgage pass-through securities		3,046			—			3,046		—
	Obligations of U.S. states and political subdivision		8,406			—			8,406		—
	Trust preferred securities		16,306			—			16,306		—
	Corporate bonds and notes		125,777			—			125,777		—
	Asset-backed securities		27,502			—			27,502		—
	Certificates of deposit		2,123			—			2,123		—
	Equity securities		307			307			—		—
	Other securities		12,892			12,892			—		—
	Total available-for-sale		289,532			13,199			276,333		—
	Derivatives		48			—			48		—
	Total assets	$	289,580		$	13,199		$	276,381	$	—
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]	For assets measured at fair value on a non-recurring basis, the unobservable inputs used to derive fair value measurements at March 31, 2015 and December 31, 2014 were as follows:
					Range
	Impaired loans	Valuation Techniques		Range of Unobservable Inputs	Minimum		Maximum
	Commercial real estate	Appraisals of collateral value		Market capitalization rates. Market rental rates for similar properties	8%		12%
	Other real estate owned
	Commercial real estate	Appraisals of collateral value		Adjustment for age of comparable sales	0%		25%
					Range
	Impaired loans	Valuation Techniques		Range of Unobservable Inputs	Minimum		Maximum
	Commercial real estate	Appraisals of collateral value		Market capitalization rates. Market rental rates for similar properties	8%		12%
	Other real estate owned
	Commercial real estate	Appraisals of collateral value		Adjustment for age of comparable sales	0%		25%
Fair Value Measurements, Nonrecurring [Table Text Block]					Fair Value Measurements at Reporting Date Using
	Assets measured at fair value on a nonrecurring basis:	March 31,			Quoted			Significant		Significant
		2015			Prices			Other		Unobservable
					in Active			Observable		Inputs
					Markets for			Inputs		(Level 3)
					Identical			(Level 2)
					Assets
					(Level 1)
	Impaired loans	(in thousands)
	Commercial	$	194		$	—		$	—	$	194
	Commercial real estate		5,823			—			—		5,823
	Other real estate owned
	Commercial real estate		870			—			—		870
					Fair Value Measurements at Reporting Date Using
	Assets Measured at Fair Value on a Non-Recurring Basis	December 31,			Quoted			Significant		Significant
		2014			Prices			Other		Unobservable
					in Active			Observable		Inputs
					Markets for			Inputs		(Level 3)
					Identical			(Level 2)
					Assets
					(Level 1)
	Impaired loans	(in thousands)
	Commercial	$	276		$	—		$	—	$	276
	Commercial real estate		3,369			—			—		3,369
	Other real estate owned
	Commercial real estate		1,108			—			—		1,108
Fair Value, by Balance Sheet Grouping [Table Text Block]	The following presents the carrying amount, fair value, and placement in the fair value hierarchy of the Company’s financial instruments as of March 31, 2015 and December 31, 2014.
								Fair Value Measurements
		Carrying			Fair			Quoted		Significant		Significant
		Amount			Value			Prices in		Other		Unobservable
								Active		Observable		Inputs
								Markets for		Inputs		(Level 3)
								Identical		(Level 2)
								Assets
								(Level 1)
		(in thousands)
	31-Mar-15
	Financial assets
	Cash and cash equivalents	$	88,543		$	88,543		$	88,543	$	—	$	—
	Investment securities available-for-sale		276,121			276,121			12,833		263,288		—
	Investment securities held-to-maturity		231,720			240,263			29,822		191,722		18,719
	Restricted investment in bank stocks		24,874			n/a			n/a		n/a		n/a
	Loans held for sale		1,392			1,392					1,392
	Net loans		2,624,806			2,628,873			—		—		2,628,873
	Accrued interest receivable		11,513			11,513			199		2,943		8,371
	Financial liabilities
	Noninterest-bearing deposits		479,652			479,652			479,652		—		—
	Interest-bearing deposits		2,016,359			2,021,144			—		2,021,144		—
	Borrowings		525,148			532,335			—		532,335		—
	Subordinated debentures		5,155			4,852			—		4,852		—
	Derivatives		486			486			—		486		—
	Accrued interest payable		4,316			4,316			—		4,316		—
								Fair Value Measurements
		Carrying			Fair			Quoted		Significant		Significant
		Amount			Value			Prices in		Other		Unobservable
								Active		Observable		Inputs
								Markets for		Inputs		(Level 3)
								Identical		(Level 2)
								Assets
								(Level 1)
		(in thousands)
	31-Dec-14
	Financial assets
	Cash and cash equivalents	$	126,847		$	126,847		$	126,847	$	—	$	—
	Investment securities available-for-sale		289,532			289,532			13,199		276,333		—
	Investment securities held-to-maturity		224,682			231,445			29,184		183,489		18,772
	Restricted investment in bank stocks		23,535			n/a			n/a		n/a		n/a
	Net loans		2,524,481			2,538,415			—		—		2,538,415
	Derivatives		48			48			—		48		—
	Accrued interest receivable		11,700			11,700			68		3,674		7,958
	Financial liabilities
	Noninterest-bearing deposits		492,515			492,515			492,515		—		—
	Interest-bearing deposits		1,983,092			1,990,484			—		1,990,484		—
	Borrowings		495,553			505,641			—		505,641		—
	Subordinated debentures		5,155			4,768			—		4,768		—
	Accrued interest payable		3,930			3,930			—		3,930		—

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2015
Disclosure Text Block [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	Accumulated other comprehensive loss (net of tax) at March 31, 2015 and December 31, 2014 consisted of the following:
		March 31,			December 31,
		2015			2014
		(in thousands)
	Net unrealized gain on investment securities available-for-sale	$	5,491		$	4,874
	Cash flow hedge		(288	)		28
	Unamortized component of securities transferred from available-for-sale to held-to-maturity		(1,263	)		(1,301	)
	Defined benefit pension and post-retirement plans		(4,176	)		(4,615	)
	Total accumulated other comprehensive loss	$	(236	)	$	(1,014	)

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]	Options activity under the stock-based compensation plans as of March 31, 2015 and changes during the three months ended March 31, 2015 were as follows:
		Shares			Weighted-		Weighted-		Aggregate
					Average		Average		Intrinsic
					Exercise		Remaining		Value
					Price		Contractual
							Term (Years)
	Outstanding at December 31, 2014		882,657		$	5.65
	Exercised		(110,500	)	$	3.85
	Canceled/expired		—
	Forfeited		(3,362	)
	Outstanding at March 31, 2015		768,795		$	5.87		2.67	$	10,273,607
	Exercisable at March 31, 2015		763,028		$	5.8		2.62	$	10,244,830
Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]	The fair value of the stock granted was based on the closing market price of its common stock as of the grant date. Generally, grants of restricted shares vest one-third, each, on the first, second and third anniversaries of the grant date
		Nonvested Shares			Weighted-
					Average
					Grant Date
					Fair Value
	Nonvested at December 31, 2014		50,203		$	11.79
	Granted		59,466			18.47
	Vested		(20,565	)		10.76
	Forfeited/cancelled/expired		—			—
	Outstanding at March 31, 2015		89,104		$	16.43

Components_of_Net_Periodic_Pen1

Components of Net Periodic Pension Cost (Tables)	3 Months Ended
	Mar. 31, 2015
Compensation and Retirement Disclosure [Abstract]
Schedule of Net Benefit Costs [Table Text Block]	The following table sets forth the net periodic pension cost of the Company’s pension plan for the periods indicated.
		Three Months Ended
		March 31,
		2015			2014
	Interest cost	$	138		$	144
	Expected return on plan assets		(137	)		(149	)
	Net amortization		108			56
	Recognized settlement loss		450			—
	Total periodic pension expense	$	559		$	51
	Net actuarial gain	$	(742	)	$	(1,281	)
	Total recognized in other comprehensive income	$	(742	)	$	(1,281	)
	Total recognized in net periodic expense and other comprehensive income (before tax)	$	(183	)	$	(1,230	)

FHLB_and_other_borrowings_Tabl

FHLB and other borrowings (Tables)	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Schedule of Long-term Debt Instruments [Table Text Block]	The Company’s FHLB and other borrowings and weighted average interest rates are summarized below:
		31-Mar-15			31-Dec-14
		Amount		Rate	Amount		Rate
		(in thousands)
	By type of borrowing:
	FHLB borrowings	$	494,148	1.23%	$	464,553	1.18%
	Repurchase agreements		31,000	5.90%		31,000	5.90%
	Total borrowings	$	525,148	1.51%	$	495,553	1.48%
	By remaining period to maturity:
	One year or less	$	238,148	0.50%		258,553	0.50%
	One to two years		55,000	1.20%		30,000	1.40%
	Two to three years		71,000	2.33%		71,000	2.33%
	Three to four years		96,000	2.67%		96,000	2.67%
	Four to five years		25,000	1.85%		—	—
	Greater than five years		40,000	3.43%		40,000	3.42%
	Total borrowings	$	525,148	1.51%	$	495,553	1.48%

Subordinated_Debentures_Tables

Subordinated Debentures (Tables)	3 Months Ended
	Mar. 31, 2015
Subordinated Borrowings [Abstract]
Schedule of Subordinated Borrowing [Table Text Block]	The following table summarizes the mandatory redeemable trust preferred securities of the Company’s Statutory Trust II at March 31, 2015.
	Issuance Date	Securities		Liquidation Value	Coupon Rate	Maturity	Redeemable by
		Issued					Issuer Beginning
	12/19/03	$	5,000,000	$1,000 per Capital Security	Floating 3-month LIBOR + 285 Basis Points	1/23/34	1/23/09
	Issuance Date	Securities		Liquidation Value	Coupon Rate	Maturity	Redeemable by
		Issued					Issuer Beginning
	12/19/03	$	5,000,000	$1,000 per Capital Security	Floating 3-month LIBOR + 285 Basis Points	1/23/34	1/23/09

Nature_of_Operations_and_Princ1

Nature of Operations and Principles of Consolidation (Details)	Mar. 31, 2015
Disclosure Text Block [Abstract]
Number of offices merge	23

Business_Combinations_Details

Business Combinations (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Jul. 01, 2014
Business Combinations (Details) [Line Items]
Common Stock Conversion Ratio Shares (in Shares)	2.6
Goodwill Recorded in Business Acquisition	$129,105,000	$129,105,000
Finite Lived Intangible Asset Acquired		5,308,000
Business Combination, Consideration Transferred	264,231
Finite-Lived Intangible Asset, Useful Life	10 years
Business Combination, Acquisition Related Costs	10,600,000
Legacy ConnectOne [Member]
Business Combinations (Details) [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets		1,500,000,000
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Non Current Loans		1,200,000,000
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Non Current Deposits		$1,100,000,000

Business_Combinations_Details_

Business Combinations (Details) - Schedule of business combinations (USD $)	Mar. 31, 2015		Jul. 01, 2014
Business Acquisition [Line Items]
Cash and cash equivalents	$70,318,000
Investment securities	28,452,000
Restricted stock	13,646,000
Loans held for sale	190,000
Loans	1,299,284,000
Bank owned life insurance	15,481,000
Premises and equipment	6,475,000
Accrued interest receivable	4,470,000
Core deposit and other intangibles	5,308,000
Other real estate owned	2,455,000
Other assets	14,286,000
Deposits	-1,051,342,000
FHLB borrowings	-263,370,000
Other liabilities	-10,527,000
Total identifiable net assets	135,126,000
Goodwill recorded in the Merger	129,105,000		129,105,000
Fair Value Adjustments [Member]
Business Acquisition [Line Items]
Investment securities	16,000	[1]
Loans	-5,316,000	[2]
Premises and equipment	-905,000	[3]
Core deposit and other intangibles	5,308,000	[4]
Other assets	3,650,000	[5]
Deposits	-1,676,000	[6]
FHLB borrowings	-1,324,000	[7]
Total identifiable net assets	-247,000
Legacy ConnectOne [Member]
Business Acquisition [Line Items]
Cash and cash equivalents	70,318,000
Investment securities	28,436,000
Restricted stock	13,646,000
Loans held for sale	190,000
Loans	1,304,600,000
Bank owned life insurance	15,481,000
Premises and equipment	7,380,000
Accrued interest receivable	4,470,000
Other real estate owned	2,455,000
Other assets	10,636,000
Deposits	-1,049,666,000
FHLB borrowings	-262,046,000
Other liabilities	-10,527,000
Total identifiable net assets	$135,373,000
[1]	Represents the fair value adjustment on investment securities held to maturity.
[2]	Represents the elimination of Legacy ConnectOne's allowance for loan and lease losses, deferred fees, deferred costs and an adjustment of the amortized cost of loans to estimated fair value, which includes an interest rate mark and credit mark.
[3]	Represent an adjustment to reflect the fair value of above-market rent on leased premises. The above-market rent adjustment will be amortized on a straight-line basis over the remaining term of the respective leases.
[4]	Represents intangible assets recorded to reflect the fair value of core deposits. The core deposit asset was recorded as an identifiable intangible asset and will be amortized on an accelerated basis over the estimated average life of the deposit base.
[5]	Consist primarily of adjustments in net deferred tax assets resulting from the fair value adjustments related to acquired assets, liabilities assumed and identifiable intangibles recorded.
[6]	Represents fair value adjustment on time deposits as the weighted average interest rates of time deposits assumed exceeded the costs of similar funding available in the market at the time of the Merger, as well as the elimination of fees paid on brokered time deposits.
[7]	Represents the fair value adjustment on FHLB borrowings as the weighted average interest rate of FHLB borrowings assumed exceeded the cost of similar funding available in the market at the time of the Merger.

Business_Combinations_Details_1

Business Combinations (Details) - Loans accounted for in accordance with ASC 310-30 (Loans accounted for in accordance with FASB ASC 310-30 [Member], USD $)	Jul. 01, 2014
In Thousands, unless otherwise specified
Loans accounted for in accordance with FASB ASC 310-30 [Member]
Business Combinations (Details) - Loans accounted for in accordance with ASC 310-30 [Line Items]
Contractual principal and accrued interest at acquisition	$23,284
Principal not expected to be collected (non-accretable discount)	-6,942
Expected cash flows at acquisition	16,342
Interest component of expected cash flows (accretable discount)	-5,013
Fair value of acquired loans	$11,329

Earnings_per_Common_Share_Deta

Earnings per Common Share (Details) - Schedule of earnings per common share (USD $)	3 Months Ended		12 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Schedule of earnings per common share [Abstract]
Net income	$10,379	$4,398	$18,565
Preferred stock dividends	-28	-28
Net income available to common stockholders	$10,351	$4,370
Basic weighted average common shares outstanding	29,757,316	16,350,183
Effect of dilutive options	392,000	56,000
Diluted weighted average common shares outstanding	30,149,469	16,405,540
Earnings per common share:
Basic	$0.35	$0.27
Diluted	$0.34	$0.27

Investment_Securities_Details

Investment Securities (Details) (USD $)	3 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Investments, Debt and Equity Securities [Abstract]
Number of Investment Securities Sold	39	54
Available-for-sale Securities Pledged as Collateral	$215.90	$224.70
Description of Holding Securities	there were no holdings of securities of any one issuer, other than the U.S Government and its agencies, in an amount greater than 10% of stockholders’ equity.

Investment_Securities_Details_

Investment Securities (Details) - Unrealized gains on investment securities (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Investment securities available-for-sale:
Investment Securities Available-for-Sale, Amortized Cost	$267,047	$281,461
Investment Securities Available-for-Sale, Gross Unrealized Gains	9,578	8,596
Investment Securities Available-for-Sale, Gross Unrealized Losses	-504	-525
Investment Securities Available-for-Sale, Fair Value	276,121	289,532
Investment securities held-to-maturity:
Investment Securities Held-to-Maturity, Amortized Cost	231,720	224,682
Investment Securities Held-to-Maturity, Gross Unrealized Gains	8,643	6,858
Investment Securities Held-to-Maturity, Gross Unrealized Losses	-100	-95
Investment Securities Held-to-Maturity, Fair Value	240,263	231,445
Total, Amortized Cost	498,767	506,143
Total, Gross Unrealized Gains	18,221	15,454
Total, Gross Unrealized Losses	-604	-620
Total, Fair Value	516,384	520,977
Federal Agency Obligations [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale, Amortized Cost	30,774	32,650
Investment Securities Available-for-Sale, Gross Unrealized Gains	463	217
Investment Securities Available-for-Sale, Gross Unrealized Losses	-4	-50
Investment Securities Available-for-Sale, Fair Value	31,233	32,817
Investment securities held-to-maturity:
Investment Securities Held-to-Maturity, Amortized Cost	35,393	27,103
Investment Securities Held-to-Maturity, Gross Unrealized Gains	586	322
Investment Securities Held-to-Maturity, Gross Unrealized Losses	-30	-28
Investment Securities Held-to-Maturity, Fair Value	35,949	27,397
Residential Mortgage Backed Securities [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale, Amortized Cost	57,300	58,836
Investment Securities Available-for-Sale, Gross Unrealized Gains	1,737	1,531
Investment Securities Available-for-Sale, Gross Unrealized Losses	-9	-11
Investment Securities Available-for-Sale, Fair Value	59,028	60,356
Investment securities held-to-maturity:
Investment Securities Held-to-Maturity, Amortized Cost	5,542	5,955
Investment Securities Held-to-Maturity, Gross Unrealized Gains	26	28
Investment Securities Held-to-Maturity, Gross Unrealized Losses	-13
Investment Securities Held-to-Maturity, Fair Value	5,555	5,983
Commercial Mortgage Backed Securities [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale, Amortized Cost	3,027	3,042
Investment Securities Available-for-Sale, Gross Unrealized Gains	55	4
Investment Securities Available-for-Sale, Fair Value	3,082	3,046
Investment securities held-to-maturity:
Investment Securities Held-to-Maturity, Amortized Cost	4,124	4,266
Investment Securities Held-to-Maturity, Gross Unrealized Gains	86	50
Investment Securities Held-to-Maturity, Fair Value	4,210	4,316
US States and Political Subdivisions Debt Securities [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale, Amortized Cost	8,197	8,201
Investment Securities Available-for-Sale, Gross Unrealized Gains	238	205
Investment Securities Available-for-Sale, Fair Value	8,435	8,406
Investment securities held-to-maturity:
Investment Securities Held-to-Maturity, Amortized Cost	119,384	120,144
Investment Securities Held-to-Maturity, Gross Unrealized Gains	4,966	4,512
Investment Securities Held-to-Maturity, Gross Unrealized Losses	-46	-60
Investment Securities Held-to-Maturity, Fair Value	124,304	124,596
Trust Preferred Securities [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale, Amortized Cost	16,086	16,086
Investment Securities Available-for-Sale, Gross Unrealized Gains	648	489
Investment Securities Available-for-Sale, Gross Unrealized Losses	-278	-269
Investment Securities Available-for-Sale, Fair Value	16,456	16,306
Corporate Bonds and Notes [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale, Amortized Cost	110,671	119,838
Investment Securities Available-for-Sale, Gross Unrealized Gains	6,190	5,950
Investment Securities Available-for-Sale, Gross Unrealized Losses	-22	-11
Investment Securities Available-for-Sale, Fair Value	116,839	125,777
Investment securities held-to-maturity:
Investment Securities Held-to-Maturity, Amortized Cost	38,962	38,950
Investment Securities Held-to-Maturity, Gross Unrealized Gains	1,472	1,026
Investment Securities Held-to-Maturity, Gross Unrealized Losses	-11	-7
Investment Securities Held-to-Maturity, Fair Value	40,423	39,969
Asset-backed Securities [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale, Amortized Cost	26,045	27,393
Investment Securities Available-for-Sale, Gross Unrealized Gains	127	140
Investment Securities Available-for-Sale, Gross Unrealized Losses	-80	-31
Investment Securities Available-for-Sale, Fair Value	26,092	27,502
Certificates of Deposit [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale, Amortized Cost	2,097	2,098
Investment Securities Available-for-Sale, Gross Unrealized Gains	31	27
Investment Securities Available-for-Sale, Gross Unrealized Losses	-5	-2
Investment Securities Available-for-Sale, Fair Value	2,123	2,123
Equity Securities [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale, Amortized Cost	376	376
Investment Securities Available-for-Sale, Gross Unrealized Losses	-56	-69
Investment Securities Available-for-Sale, Fair Value	320	307
Other Securities [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale, Amortized Cost	12,474	12,941
Investment Securities Available-for-Sale, Gross Unrealized Gains	89	33
Investment Securities Available-for-Sale, Gross Unrealized Losses	-50	-82
Investment Securities Available-for-Sale, Fair Value	12,513	12,892
US Treasury Securities [Member]
Investment securities held-to-maturity:
Investment Securities Held-to-Maturity, Amortized Cost	28,315	28,264
Investment Securities Held-to-Maturity, Gross Unrealized Gains	1,507	920
Investment Securities Held-to-Maturity, Fair Value	$29,822	$29,184

Investment_Securities_Details_1

Investment Securities (Details) - Investments classified by maturity date (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Investment securities available-for-sale:
Due in one year or less	$23,891
Due in one year or less	24,248
Due after one year through five years	32,274
Due after one year through five years	33,611
Due after five years through ten years	83,910
Due after five years through ten years	88,819
Due after ten years	53,795
Due after ten years	54,500
Total	267,047	281,461
Total	276,121
Investment securities held-to-maturity:
Due in one year or less	4,991
Due in one year or less	5,020
Due after one year through five years	9,207
Due after one year through five years	9,401
Due after five years through ten years	71,916
Due after five years through ten years	75,354
Due after ten years	135,940
Due after ten years	140,723
Total	231,720	224,682
Total	240,263	231,445
Total investment securities	498,767
Total investment securities	516,384
Residential Mortgage Backed Securities [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale: Amortized Cost	57,300
Investment Securities Available-for-Sale: Fair Value	59,028
Total	57,300	58,836
Investment securities held-to-maturity:
Investment Securities Held-to-Maturity: Amoritzed Cost	5,542
Investment Securities Held-to-Maturity: Fair Value	5,555
Total	5,555	5,983
Commercial Mortgage Backed Securities [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale: Amortized Cost	3,027
Investment Securities Available-for-Sale: Fair Value	3,082
Total	3,027	3,042
Investment securities held-to-maturity:
Investment Securities Held-to-Maturity: Amoritzed Cost	4,124
Investment Securities Held-to-Maturity: Fair Value	4,210
Total	4,210	4,316
Equity Securities [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale: Amortized Cost	376
Investment Securities Available-for-Sale: Fair Value	320
Total	376	376
Other Securities [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale: Amortized Cost	12,474
Investment Securities Available-for-Sale: Fair Value	12,513
Total	$12,474	$12,941

Investment_Securities_Details_2

Investment Securities (Details) - Schedule of realized gains and losses (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Schedule of realized gains and losses [Abstract]
Proceeds	$9,537	$50,611
Gross gains on sales of investment securities	506	1,432
Gross losses on sales of investment securities		-17
Net gains on sales of investment securities	506	1,415
Less: tax provision on net gains	207	380
Total	$299	$1,035

Investment_Securities_Details_3

Investment Securities (Details) - Schedule of preferred security and associated ratings (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Investment Securities (Details) - Schedule of preferred security and associated ratings [Line Items]
Available-for-sale Securities, Amortized Cost	$267,047	$281,461
Available-for-sale Securities, Fair Value	276,121	289,532
Trust Preferred Securities [Member] | Additional Deal Value [Member] | Countrywide Capital V [Member]
Investment Securities (Details) - Schedule of preferred security and associated ratings [Line Items]
Available-for-sale Securities, Amortized Cost	250
Available-for-sale Securities, Fair Value	259
Available-for-sale Securities, Gross Unrealized Gain (Loss)	9
Lowest Credit Rating Assigned	BB
Trust Preferred Securities [Member] | Additional Deal Value [Member] | Morgan Stanley Cap Trust IV [Member]
Investment Securities (Details) - Schedule of preferred security and associated ratings [Line Items]
Available-for-sale Securities, Amortized Cost	1,743
Available-for-sale Securities, Fair Value	1,795
Available-for-sale Securities, Gross Unrealized Gain (Loss)	52
Lowest Credit Rating Assigned	BB
Trust Preferred Securities [Member] | Countrywide Capital IV [Member]
Investment Securities (Details) - Schedule of preferred security and associated ratings [Line Items]
Available-for-sale Securities, Amortized Cost	1,771
Available-for-sale Securities, Fair Value	1,819
Available-for-sale Securities, Gross Unrealized Gain (Loss)	48
Lowest Credit Rating Assigned	BB
Trust Preferred Securities [Member] | Countrywide Capital V [Member]
Investment Securities (Details) - Schedule of preferred security and associated ratings [Line Items]
Available-for-sale Securities, Amortized Cost	2,747
Available-for-sale Securities, Fair Value	2,848
Available-for-sale Securities, Gross Unrealized Gain (Loss)	101
Lowest Credit Rating Assigned	BB
Trust Preferred Securities [Member] | Nationsbank Cap Trust III [Member]
Investment Securities (Details) - Schedule of preferred security and associated ratings [Line Items]
Available-for-sale Securities, Amortized Cost	1,575
Available-for-sale Securities, Fair Value	1,297
Available-for-sale Securities, Gross Unrealized Gain (Loss)	-278
Lowest Credit Rating Assigned	BB
Trust Preferred Securities [Member] | Morgan Stanley Cap Trust IV [Member]
Investment Securities (Details) - Schedule of preferred security and associated ratings [Line Items]
Available-for-sale Securities, Amortized Cost	2,500
Available-for-sale Securities, Fair Value	2,567
Available-for-sale Securities, Gross Unrealized Gain (Loss)	67
Lowest Credit Rating Assigned	BB
Trust Preferred Securities [Member] | Goldman Sachs [Member]
Investment Securities (Details) - Schedule of preferred security and associated ratings [Line Items]
Available-for-sale Securities, Amortized Cost	1,000
Available-for-sale Securities, Fair Value	1,252
Available-for-sale Securities, Gross Unrealized Gain (Loss)	252
Lowest Credit Rating Assigned	BB
Trust Preferred Securities [Member] | Stifel Financial [Member]
Investment Securities (Details) - Schedule of preferred security and associated ratings [Line Items]
Available-for-sale Securities, Amortized Cost	4,500
Available-for-sale Securities, Fair Value	4,619
Available-for-sale Securities, Gross Unrealized Gain (Loss)	119
Lowest Credit Rating Assigned	BBB-
Trust Preferred Securities [Member]
Investment Securities (Details) - Schedule of preferred security and associated ratings [Line Items]
Available-for-sale Securities, Amortized Cost	16,086	16,086
Available-for-sale Securities, Fair Value	16,456	16,306
Available-for-sale Securities, Gross Unrealized Gain (Loss)	$370

Investment_Securities_Details_4

Investment Securities (Details) - Schedule of unrealized losses not recognized in income (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Investment securities available-for-sale:
Investment Securities Available-for-Sale: Total, Fair Value	$23,626	$31,583
Investment Securities Available-for-Sale: Total, Unrealized Losses	-504	-525
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value	16,233	22,545
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses	-117	-85
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value	7,393	9,038
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses	-387	-440
Investment securities held-to-maturity:
Investment Securities Held-to-Maturity: Total, Fair Value	21,138	12,562
Investment Securities Held-to-Maturity: Total, Unrealized Losses	-100	-95
Investment Securities Held-to-Maturity: Less than 12 Months, Fair Value	21,138	5,622
Investment Securities Held-to-Maturity: Less than 12 Months, Unrealized Losses	-100	-38
Investment Securities Held-to-Maturity: 12 Months or Longer, Fair Value		6,940
Investment Securities Held-to-Maturity: 12 Months or Longer, Unrealized Losses		-57
Fair Value, Total	44,764	44,145
Unrealized Losses, Total	-604	-620
Fair Value, Less than 12 Months	37,371	28,167
Unrealized Losses, Less than 12 Months	-217	-123
Fair Value, 12 Months or Longer	7,393	15,978
Unrealized Losses, 12 Months or Longer	-387	-497
Federal Agency Obligations [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale: Total, Fair Value	1,656	6,755
Investment Securities Available-for-Sale: Total, Unrealized Losses	-4	-50
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value	1,357	2,770
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses	-1	-9
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value	299	3,985
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses	-3	-41
Investment securities held-to-maturity:
Investment Securities Held-to-Maturity: Total, Fair Value	6,422	3,228
Investment Securities Held-to-Maturity: Total, Unrealized Losses	-30	-28
Investment Securities Held-to-Maturity: Less than 12 Months, Fair Value	6,422	3,228
Investment Securities Held-to-Maturity: Less than 12 Months, Unrealized Losses	-30	-28
Residential Mortgage Backed Securities [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale: Total, Fair Value	1,026	5,694
Investment Securities Available-for-Sale: Total, Unrealized Losses	-9	-11
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value	1,026	5,694
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses	-9	-11
Investment securities held-to-maturity:
Investment Securities Held-to-Maturity: Total, Fair Value	3,660
Investment Securities Held-to-Maturity: Total, Unrealized Losses	-13
Investment Securities Held-to-Maturity: Less than 12 Months, Fair Value	3,660
Investment Securities Held-to-Maturity: Less than 12 Months, Unrealized Losses	-13
Trust Preferred Securities [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale: Total, Fair Value	1,297	1,307
Investment Securities Available-for-Sale: Total, Unrealized Losses	-278	-269
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value	1,297	1,307
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses	-278	-269
Corporate Bonds and Notes [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale: Total, Fair Value	3,935	1,961
Investment Securities Available-for-Sale: Total, Unrealized Losses	-22	-11
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value	3,935	1,961
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses	-22	-11
Investment securities held-to-maturity:
Investment Securities Held-to-Maturity: Total, Fair Value	3,720	993
Investment Securities Held-to-Maturity: Total, Unrealized Losses	-11	-7
Investment Securities Held-to-Maturity: Less than 12 Months, Fair Value	3,720	993
Investment Securities Held-to-Maturity: Less than 12 Months, Unrealized Losses	-11	-7
Asset-backed Securities [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale: Total, Fair Value	9,698	9,773
Investment Securities Available-for-Sale: Total, Unrealized Losses	-80	-31
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value	9,698	9,773
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses	-80	-31
Certificates of Deposit [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale: Total, Fair Value	217	369
Investment Securities Available-for-Sale: Total, Unrealized Losses	-5	-2
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value	217	369
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses	-5	-2
Equity Securities [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale: Total, Fair Value	320	307
Investment Securities Available-for-Sale: Total, Unrealized Losses	-56	-69
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value	320	307
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses	-56	-69
Other Securities [Member]
Investment securities available-for-sale:
Investment Securities Available-for-Sale: Total, Fair Value	5,477	5,417
Investment Securities Available-for-Sale: Total, Unrealized Losses	-50	-82
Investment Securities Available-for-Sale: Less than 12 Months, Fair Value		1,978
Investment Securities Available-for-Sale: Less than 12 Months, Unrealized Losses		-21
Investment Securities Available-for-Sale: 12 Months or Longer, Fair Value	5,477	3,439
Investment Securities Available-for-Sale: 12 Months or Longer, Unrealized Losses	-50	-61
Obligation of U.S. States and Political Subdivisions [Member]
Investment securities held-to-maturity:
Investment Securities Held-to-Maturity: Total, Fair Value	7,336	8,341
Investment Securities Held-to-Maturity: Total, Unrealized Losses	-46	-60
Investment Securities Held-to-Maturity: Less than 12 Months, Fair Value	7,336	1,401
Investment Securities Held-to-Maturity: Less than 12 Months, Unrealized Losses	-46	-3
Investment Securities Held-to-Maturity: 12 Months or Longer, Fair Value		6,940
Investment Securities Held-to-Maturity: 12 Months or Longer, Unrealized Losses		($57)

Derivatives_Details

Derivatives (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Dec. 30, 2014	Oct. 15, 2014
Derivatives (Details) [Line Items]
Derivative, Notional Amount	$50,000,000		$50,000,000
Interest Expense	5,078,000	2,727,000
Cash Flow Derivative Instruments Gain (Loss) Recognized In Accumulated Other Comprehensive Income		0
Cash Flow Hedging [Member] | Interest Rate Swap [Member]
Derivatives (Details) [Line Items]
Derivative, Notional Amount				25,000,000	25,000,000
Interest Rate Swap [Member]
Derivatives (Details) [Line Items]
Interest Expense	$166,000	$0

Derivatives_Details_Summary_of

Derivatives (Details) - Summary of interest rate swap designated as a cash flow hedges (USD $)	3 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Summary of interest rate swap designated as a cash flow hedges [Abstract]
Notional amount	$50,000		$50,000
Weighted average pay rates	1.58%		1.58%
Weighted average receive rates	0.25%		0.24%
Weighted average maturity	4 years 73 days		4 years 146 days
Fair value	($486)		$48

Derivatives_Details_Summary_of1

Derivatives (Details) - Summary of net gains (losses) recorded in accumulated other comprehensive income and statements of income relating to cash flow derivative instruments (Interest Rate Contract [Member], USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015
Interest Rate Contract [Member]
Derivatives (Details) - Summary of net gains (losses) recorded in accumulated other comprehensive income and statements of income relating to cash flow derivative instruments [Line Items]
Interest rate contracts	($534)

Loans_and_the_Allowance_for_Lo2

Loans and the Allowance for Loan and Lease Losses (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Loans and the Allowance for Loan and Lease Losses (Details) [Line Items]
Number of Segments of Loans and Leases	5
Non Accrual Contractual Due	90 years
Threshold to Determine Impaired Loans	$250,000
Period Considered to Calculate Actual Loss	3 years
Loans Pledged as Collateral	1,100,000,000		1,000,000,000
Financing Receivable, Collectively Evaluated for Impairment	2,616,330,000		2,520,693,000
Commitments to Lend Additional Funds	0
Financing Receivable, Modifications, Recorded Investment	2,800,000		2,800,000
Loans Modified In Troubled Debt Restructuring On Non Accrual Status	1,100,000		1,000,000
Financing Receivable, Modifications, Number of Contracts	0
Financing Receivables, Impaired, Troubled Debt Restructuring, Write-down	0	333,000
Financing Receivable, Modifications, Subsequent Default, Number of Contracts	0
Acquired Loans [Member]
Loans and the Allowance for Loan and Lease Losses (Details) [Line Items]
Financing Receivable, Collectively Evaluated for Impairment	$1,100,000,000		$1,200,000,000

Loans_and_the_Allowance_for_Lo3

Loans and the Allowance for Loan and Lease Losses (Details) - Composition of loan portfolio (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$2,642,523	$2,539,531
Net deferred loan fees	-1,784	-890
Total loans receivable	2,640,739	2,538,641
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	562,931	499,816
Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	1,668,310	1,634,510
Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	181,056	167,359
Residential Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	226,645	234,967
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$3,581	$2,879

Loans_and_the_Allowance_for_Lo4

Loans and the Allowance for Loan and Lease Losses (Details) - Purchase credit impaired loans (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Loans and the Allowance for Loan and Lease Losses (Details) - Purchase credit impaired loans [Line Items]
Total carrying amount	$9,772	$9,821
Commercial Portfolio Segment [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Purchase credit impaired loans [Line Items]
Total carrying amount	7,146	7,199
Commercial Real Estate Portfolio Segment [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Purchase credit impaired loans [Line Items]
Total carrying amount	1,807	1,816
Residential Portfolio Segment [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Purchase credit impaired loans [Line Items]
Total carrying amount	$819	$806

Loans_and_the_Allowance_for_Lo5

Loans and the Allowance for Loan and Lease Losses (Details) - Schedule of accretable yield, or income expected to be collected (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015
Schedule of accretable yield, or income expected to be collected [Abstract]
Balance at January 1, 2015	$4,805
Accretion of income	-54
Balance at March 31, 2015	$4,751

Loans_and_the_Allowance_for_Lo6

Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	$14,585	$11,609
Commercial Portfolio Segment [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	3,347	616
Commercial Real Estate Portfolio Segment [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	8,009	8,197
Residential Portfolio Segment [Member]
Loans and the Allowance for Loan and Lease Losses (Details) - Loans receivable on nonaccrual status [Line Items]
Financing Receivable, Recorded Investment, Nonaccrual Status	$3,229	$2,796

Loans_and_the_Allowance_for_Lo7

Loans and the Allowance for Loan and Lease Losses (Details) - Credit quality indicators (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	$2,642,523	$2,539,531
Commercial Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	528,431	481,638
Commercial Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	23,975	3,686
Commercial Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	10,249	14,203
Commercial Portfolio Segment [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	276	289
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	562,931	499,816
Commercial Real Estate Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	1,621,181	1,596,606
Commercial Real Estate Portfolio Segment [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	24,509	14,140
Commercial Real Estate Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	22,620	23,764
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	1,668,310	1,634,510
Construction Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	179,577	165,880
Construction Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	1,479	1,479
Construction Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	181,056	167,359
Residential Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	223,148	230,772
Residential Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	3,497	4,195
Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	226,645	234,967
Consumer Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	3,484	2,778
Consumer Portfolio Segment [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	97	101
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	3,581	2,879
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	2,555,821	2,477,674
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	49,963	19,305
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	36,463	42,263
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans and Leases Receivable, Gross, Carrying Amount	$276	$289

Loans_and_the_Allowance_for_Lo8

Loans and the Allowance for Loan and Lease Losses (Details) - Schedule of analysis of impaired loans, by class (USD $)	Mar. 31, 2015	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
No related allowance recorded, Recorded Investment	$9,698,000	$9,552,000
No related allowance recorded, Unpaid Principal Balance	10,768,000	10,622,000
With an allowance recorded, Recorded Investment	6,723,000	3,907,000
With an allowance recorded, Unpaid Principal Balance	6,731,000	3,910,000
With an allowance recorded, Related Allowance	706,000	262,000
Total, Recorded Investment	16,421,000	13,459,000
Total, Unpaid Principal Balance	17,499,000	14,532,000
Total, Related Allowance	706,000	262,000
Commercial Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
No related allowance recorded, Recorded Investment	314,000	481,000
No related allowance recorded, Unpaid Principal Balance	334,000	527,000
With an allowance recorded, Recorded Investment	382,000	387,000
With an allowance recorded, Unpaid Principal Balance	390,000	390,000
With an allowance recorded, Related Allowance	188,000	111,000
Total, Recorded Investment	696,000	868,000
Total, Unpaid Principal Balance	724,000	917,000
Total, Related Allowance	188,000	111,000
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
No related allowance recorded, Recorded Investment	5,774,000	5,890,000
No related allowance recorded, Unpaid Principal Balance	6,468,000	6,587,000
With an allowance recorded, Recorded Investment	6,341,000	3,520,000
With an allowance recorded, Unpaid Principal Balance	6,341,000	3,520,000
With an allowance recorded, Related Allowance	518,000	151,000
Total, Recorded Investment	12,115,000	9,410,000
Total, Unpaid Principal Balance	12,809,000	10,107,000
Total, Related Allowance	518,000	151,000
Residential Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
No related allowance recorded, Recorded Investment	3,505,000	3,072,000
No related allowance recorded, Unpaid Principal Balance	3,869,000	3,407,000
Total, Recorded Investment	3,505,000	3,072,000
Total, Unpaid Principal Balance	3,869,000	3,407,000
Consumer Portfolio Segment [Member]
Financing Receivable, Impaired [Line Items]
No related allowance recorded, Recorded Investment	105,000	109,000
No related allowance recorded, Unpaid Principal Balance	97,000	101,000
Total, Recorded Investment	105,000	109,000
Total, Unpaid Principal Balance	$97,000	$101,000

Loans_and_the_Allowance_for_Lo9

Loans and the Allowance for Loan and Lease Losses (Details) - Schedule of analysis related to the average recorded investment (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Impaired loans with no related allowance recorded
Impaired loans with no related allowance recorded, Average Recorded Investment	$10,061	$1,275
Impaired loans with no related allowance recorded, Interest Income Recognized	22	57
Impaired loans with an allowance recorded
Impaired loans with an allowance recorded, Average Recorded Investment	6,722	3,528
Impaired loans with an allowance recorded, Interest Income Recognized		99
Total impaired loans
Total impaired loans, Average Recorded Investment	16,783	4,703
Total impaired loans, Interest Income Recognized	22	156
Commercial Portfolio Segment [Member]
Impaired loans with no related allowance recorded
Impaired loans with no related allowance recorded, Average Recorded Investment	290
Impaired loans with an allowance recorded
Impaired loans with an allowance recorded, Average Recorded Investment	387
Total impaired loans
Total impaired loans, Average Recorded Investment	677
Commercial Real Estate Portfolio Segment [Member]
Impaired loans with no related allowance recorded
Impaired loans with no related allowance recorded, Average Recorded Investment	6,052	1,275
Impaired loans with no related allowance recorded, Interest Income Recognized	19	57
Impaired loans with an allowance recorded
Impaired loans with an allowance recorded, Average Recorded Investment	6,335	2,302
Impaired loans with an allowance recorded, Interest Income Recognized		68
Total impaired loans
Total impaired loans, Average Recorded Investment	12,387	3,477
Total impaired loans, Interest Income Recognized	19	125
Residential Portfolio Segment [Member]
Impaired loans with no related allowance recorded
Impaired loans with no related allowance recorded, Average Recorded Investment	3,613
Impaired loans with no related allowance recorded, Interest Income Recognized	2
Impaired loans with an allowance recorded
Impaired loans with an allowance recorded, Average Recorded Investment		1,226
Impaired loans with an allowance recorded, Interest Income Recognized		31
Total impaired loans
Total impaired loans, Average Recorded Investment	3,613	1,226
Total impaired loans, Interest Income Recognized	2	31
Consumer Portfolio Segment [Member]
Impaired loans with no related allowance recorded
Impaired loans with no related allowance recorded, Average Recorded Investment	106
Impaired loans with no related allowance recorded, Interest Income Recognized	1
Total impaired loans
Total impaired loans, Average Recorded Investment	106
Total impaired loans, Interest Income Recognized	$1

Recovered_Sheet1

Loans and the Allowance for Loan and Lease Losses (Details) - Aging analysis (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	$10,431	$12,848
60-89 Days Past Due	5,647	849
90 Days or Greater Past Due	11,016	9,823
Total Past Due	27,094	23,519
Current	2,615,429	2,516,012
Total Loans Receivable	2,642,523	2,539,531
Loans Receivable > 90 Days Past Due and Accruing	638	1,211
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	5,562	6,060
60-89 Days Past Due	554
90 Days or Greater Past Due	3,899	662
Total Past Due	10,015	6,722
Current	552,916	493,094
Total Loans Receivable	562,931	499,816
Loans Receivable > 90 Days Past Due and Accruing	638	45
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	2,567	4,937
60-89 Days Past Due	5,092	638
90 Days or Greater Past Due	4,180	5,961
Total Past Due	11,839	11,535
Current	1,656,471	1,622,975
Total Loans Receivable	1,668,310	1,634,510
Loans Receivable > 90 Days Past Due and Accruing		609
Construction Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	375
Total Past Due	375
Current	180,681	167,359
Total Loans Receivable	181,056	167,359
Residential Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	1,925	1,821
60-89 Days Past Due		210
90 Days or Greater Past Due	2,937	3,200
Total Past Due	4,862	5,231
Current	221,783	229,736
Total Loans Receivable	226,645	234,967
Loans Receivable > 90 Days Past Due and Accruing		557
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	2	30
60-89 Days Past Due	1	1
Total Past Due	3	31
Current	3,578	2,848
Total Loans Receivable	$3,581	$2,879

Recovered_Sheet2

Loans and the Allowance for Loan and Lease Losses (Details) - Allowance for loan and lease losses (USD $)	Mar. 31, 2015	Jan. 01, 2015	Dec. 31, 2014	Mar. 31, 2014	Jan. 01, 2014
In Thousands, unless otherwise specified
Allowance for loan and lease losses
Allowance for loan and lease losses, individually evaluated for impairment	$706		$262
Allowance for loan and lease losses, collectively evaluated for impairment	15,227		13,898
Allowance for loan and lease losses, total	15,933	14,160	14,160	10,663	10,333
Loans receivable
Loans Receivable, individually evaluated for impairment	16,421		9,017
Loans Receivable, collectively evaluated for impairment	2,616,330		2,520,693
Loans Receivables, acquired with deteriorated credit quality	9,772		9,821
Loans Receivable, Total	2,642,523		2,539,531
Receivables Acquired with Deteriorated Credit Quality [Member] | Commercial Portfolio Segment [Member]
Loans receivable
Loans Receivables, acquired with deteriorated credit quality	7,146		7,199
Receivables Acquired with Deteriorated Credit Quality [Member] | Commercial Real Estate Portfolio Segment [Member]
Loans receivable
Loans Receivables, acquired with deteriorated credit quality	1,807		1,816
Receivables Acquired with Deteriorated Credit Quality [Member] | Residential Portfolio Segment [Member]
Loans receivable
Loans Receivables, acquired with deteriorated credit quality	819		806
Receivables Acquired with Deteriorated Credit Quality [Member]
Loans receivable
Loans Receivables, acquired with deteriorated credit quality	9,772		9,821
Commercial Portfolio Segment [Member]
Allowance for loan and lease losses
Allowance for loan and lease losses, individually evaluated for impairment	188		111
Allowance for loan and lease losses, collectively evaluated for impairment	3,739		2,972
Allowance for loan and lease losses, total	3,927	3,083	3,083	2,225	1,698
Loans receivable
Loans Receivable, individually evaluated for impairment	696		452
Loans Receivable, collectively evaluated for impairment	555,089		492,165
Loans Receivables, acquired with deteriorated credit quality	7,146		7,199
Loans Receivable, Total	562,931		499,816
Commercial Real Estate Portfolio Segment [Member]
Allowance for loan and lease losses
Allowance for loan and lease losses, individually evaluated for impairment	518		151
Allowance for loan and lease losses, collectively evaluated for impairment	8,328		7,648
Allowance for loan and lease losses, total	8,846	7,799	7,799	5,384	5,746
Loans receivable
Loans Receivable, individually evaluated for impairment	12,115		6,284
Loans Receivable, collectively evaluated for impairment	1,654,388		1,626,410
Loans Receivables, acquired with deteriorated credit quality	1,807		1,816
Loans Receivable, Total	1,668,310		1,634,510
Construction Loans [Member]
Allowance for loan and lease losses
Allowance for loan and lease losses, collectively evaluated for impairment	1,518		1,239
Allowance for loan and lease losses, total	1,518	1,239	1,239	434	362
Loans receivable
Loans Receivable, collectively evaluated for impairment	181,056		167,359
Loans Receivable, Total	181,056		167,359
Residential Portfolio Segment [Member]
Allowance for loan and lease losses
Allowance for loan and lease losses, collectively evaluated for impairment	981		1,113
Allowance for loan and lease losses, total	981	1,113	1,113	1,004	990
Loans receivable
Loans Receivable, individually evaluated for impairment	3,905		2,180
Loans Receivable, collectively evaluated for impairment	222,321		231,981
Loans Receivables, acquired with deteriorated credit quality	819		806
Loans Receivable, Total	226,645		234,967
Consumer Portfolio Segment [Member]
Allowance for loan and lease losses
Allowance for loan and lease losses, collectively evaluated for impairment	4		7
Allowance for loan and lease losses, total	4	7	7	79	146
Loans receivable
Loans Receivable, individually evaluated for impairment	105		101
Loans Receivable, collectively evaluated for impairment	3,476		2,778
Loans Receivable, Total	3,581		2,879
Unallocated Financing Receivables [Member]
Allowance for loan and lease losses
Allowance for loan and lease losses, collectively evaluated for impairment	657		919
Allowance for loan and lease losses, total	$657	$919	$919	$1,507	$1,391

Recovered_Sheet3

Loans and the Allowance for Loan and Lease Losses (Details) - Schedule of allowance for loan losses (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Jan. 01, 2015	Dec. 31, 2014	Jan. 01, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance	$15,933	$10,663	$14,160	$14,160	$10,333
Charged-offs	-60	-336
Recoveries	8	11
Provision	1,825	625
Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance	3,927	2,225	3,083	3,083	1,698
Charged-offs	-45	-333
Recoveries	6
Provision	883	860
Commercial Real Estate Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance	8,846	5,384	7,799	7,799	5,746
Charged-offs	-4
Provision	1,051	-362
Construction Loans [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance	1,518	434	1,239	1,239	362
Provision	279	72
Residential Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance	981	1,004	1,113	1,113	990
Recoveries	1	10
Provision	-133	4
Consumer Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance	4	79	7	7	146
Charged-offs	-11	-3
Recoveries	1	1
Provision	7	-65
Unallocated Financing Receivables [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance	657	1,507	919	919	1,391
Provision	($262)	$116

Recovered_Sheet4

Loans and the Allowance for Loan and Lease Losses (Details) - Schedule of troubled debt restructuring by class (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015
Troubled debt restructurings:
Commercial	0
Commercial Portfolio Segment [Member]
Troubled debt restructurings:
Commercial	1
Commercial	672
Commercial	337

Fair_Value_Measurements_and_Fa2

Fair Value Measurements and Fair Value of Financial Instruments (Details) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Fair Value Disclosures [Abstract]
Impaired Financing Receivable, with Related Allowance, Recorded Investment	$6,723,000	$3,907,000
Impaired Financing Receivable, Related Allowance	706,000	262,000
Allowance for Loan and Lease Losses, Period Increase (Decrease)	444,000	262,000
Other Real Estate Owned, Provision Recorded	$0

Fair_Value_Measurements_and_Fa3

Fair Value Measurements and Fair Value of Financial Instruments (Details) - Schedule of fair value, assets and liabilities measured on recurring basis (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	$276,121	$289,532
Loans held for sale	1,392
Assets: Available-for-sale, Fair Value	277,513	289,580
Liabilities
Derivatives	486
Total liabilities	486
Assets
Derivatives		48
Federal Agency Obligations [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	31,233	32,817
Federal Agency Obligations [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	31,233	32,817
Residential Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	59,028	60,356
Residential Mortgage Backed Securities [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	59,028	60,356
Commercial Mortgage Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	3,082	3,046
Commercial Mortgage Backed Securities [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	3,082	3,046
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	8,435	8,406
US States and Political Subdivisions Debt Securities [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	8,435	8,406
Trust Preferred Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	16,456	16,306
Trust Preferred Securities [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	16,456	16,306
Corporate Bonds and Notes [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	116,839	125,777
Corporate Bonds and Notes [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	116,839	125,777
Asset-backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	26,092	27,502
Asset-backed Securities [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	26,092	27,502
Certificate of Deposit [Member] | Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	2,123	2,123
Certificate of Deposit [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	2,123	2,123
Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	320	307
Equity Securities [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	320	307
Other Securities [Member] | Fair Value, Inputs, Level 1 [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	12,513	12,892
Other Securities [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	12,513	12,892
Fair Value, Inputs, Level 1 [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	12,833	13,199
Assets: Available-for-sale, Fair Value	12,833	13,199
Fair Value, Inputs, Level 2 [Member]
Available-for-sale:
Investment securities: Available-for-sale, Fair Value	263,288	276,333
Loans held for sale	1,392
Assets: Available-for-sale, Fair Value	264,680	276,381
Liabilities
Derivatives	486
Total liabilities	486
Assets
Derivatives		$48

Fair_Value_Measurements_and_Fa4

Fair Value Measurements and Fair Value of Financial Instruments (Details) - Fair value, assets and liabilities measured on nonrecurring basis, valuation techniques (Commercial Real Estate Portfolio Segment [Member], Appraisals of Collateral Valuation Technique [Member])	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Minimum [Member] | Impaired Loans [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Fair value, assets and liabilities measured on nonrecurring basis, valuation techniques [Line Items]
Discounted Range	8.00%	8.00%
Minimum [Member] | Other Real Estate Owned [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Fair value, assets and liabilities measured on nonrecurring basis, valuation techniques [Line Items]
Discounted Range	0.00%	0.00%
Maximum [Member] | Impaired Loans [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Fair value, assets and liabilities measured on nonrecurring basis, valuation techniques [Line Items]
Discounted Range	12.00%	12.00%
Maximum [Member] | Other Real Estate Owned [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Fair value, assets and liabilities measured on nonrecurring basis, valuation techniques [Line Items]
Discounted Range	25.00%	25.00%
Impaired Loans [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Fair value, assets and liabilities measured on nonrecurring basis, valuation techniques [Line Items]
Valuation Technique	Appraisals of collateral value	Appraisals of collateral value
Other Real Estate Owned [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Fair value, assets and liabilities measured on nonrecurring basis, valuation techniques [Line Items]
Valuation Technique	Appraisals of collateral value	Appraisals of collateral value

Fair_Value_Measurements_and_Fa5

Fair Value Measurements and Fair Value of Financial Instruments (Details) - Schedule of assets at fair value on non-recurring basis (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Commercial Portfolio Segment [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Schedule of assets at fair value on non-recurring basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$194	$276
Commercial Portfolio Segment [Member] | Impaired Loans [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Schedule of assets at fair value on non-recurring basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	194	276
Commercial Real Estate Portfolio Segment [Member] | Impaired Loans [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Schedule of assets at fair value on non-recurring basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	5,823	3,369
Commercial Real Estate Portfolio Segment [Member] | Impaired Loans [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Schedule of assets at fair value on non-recurring basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	5,823	3,369
Commercial Real Estate Portfolio Segment [Member] | Other Real Estate Owned [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Schedule of assets at fair value on non-recurring basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	870	1,108
Commercial Real Estate Portfolio Segment [Member] | Other Real Estate Owned [Member]
Fair Value Measurements and Fair Value of Financial Instruments (Details) - Schedule of assets at fair value on non-recurring basis [Line Items]
Assets, Fair Value Disclosure, Nonrecurring	$870	$1,108

Fair_Value_Measurements_and_Fa6

Fair Value Measurements and Fair Value of Financial Instruments (Details) - Schedule of fair value hierarchy (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financial assets
Cash and cash equivalents, Carrying Amount	$88,543	$126,847	$106,282	$82,692
Cash and cash equivalents, Fair Value	88,543	126,847
Investment securities available-for-sale, Carrying Amount	276,121	289,532
Investment securities: available-for-sale, Fair Value	276,121	289,532
Investment securities held-to-maturity, Carrying Amount	231,720	224,682
Investment securities held-to-maturity, Fair Value	240,263	231,445
Restricted investment in bank stocks, Carrying Amount	24,874	23,535
Restricted investment in bank stocks, Fair Value
Loans held for sale	1,392
Loans held for sale	1,392
Net loans, Carrying Amount	2,624,806	2,524,481
Net loans, Fair Value	2,628,873	2,538,415
Derivatives		48
Derivatives		48
Accrued interest receivable, Carrying Amount	11,513	11,700
Accrued interest receivable, Fair Value	11,513	11,700
Financial liabilities
Noninterest-bearing deposits, Carrying Amount	479,652	492,515
Noninterest-bearing deposits, Fair Value	479,652	492,515
Interest-bearing deposits, Carrying Amount	2,016,359	1,983,092
Interest-bearing deposits, Fair Value	2,021,144	1,990,484
Borrowings, Carrying Amount	525,148	495,553
Borrowings, Fair Value	532,335	505,641
Subordinated debentures, Carrying Amount	5,155	5,155
Subordinated debentures, Fair Value	4,852	4,768
Derivatives	486
Derivatives	486
Accrued interest payable, Carrying Amount	4,316	3,930
Accrued interest payable, Fair Value	4,316	3,930
Fair Value, Inputs, Level 1 [Member]
Financial assets
Cash and cash equivalents, Fair Value	88,543	126,847
Investment securities: available-for-sale, Fair Value	12,833	13,199
Investment securities held-to-maturity, Fair Value	29,822	29,184
Restricted investment in bank stocks, Fair Value
Accrued interest receivable, Fair Value	199	68
Financial liabilities
Noninterest-bearing deposits, Fair Value	479,652	492,515
Fair Value, Inputs, Level 2 [Member]
Financial assets
Investment securities: available-for-sale, Fair Value	263,288	276,333
Investment securities held-to-maturity, Fair Value	191,722	183,489
Restricted investment in bank stocks, Fair Value
Loans held for sale	1,392
Derivatives		48
Accrued interest receivable, Fair Value	2,943	3,674
Financial liabilities
Interest-bearing deposits, Fair Value	2,021,144	1,990,484
Borrowings, Fair Value	532,335	505,641
Subordinated debentures, Fair Value	4,852	4,768
Derivatives	486
Accrued interest payable, Fair Value	4,316	3,930
Fair Value, Inputs, Level 3 [Member]
Financial assets
Investment securities held-to-maturity, Fair Value	18,719	18,772
Restricted investment in bank stocks, Fair Value
Net loans, Fair Value	2,628,873	2,538,415
Accrued interest receivable, Fair Value	$8,371	$7,958

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Details) - Schedule of accumulated other comprehensive loss (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Schedule of accumulated other comprehensive loss [Abstract]
Net unrealized gain on investment securities available-for-sale	$5,491	$4,874
Cash flow hedge	-288	28
Unamortized component of securities transferred from available-for-sale to held-to-maturity	-1,263	-1,301
Defined benefit pension and post-retirement plans	-4,176	-4,615
Total accumulated other comprehensive loss	($236)	($1,014)

StockBased_Compensation_Detail

Stock-Based Compensation (Details) (USD $)	0 Months Ended	3 Months Ended
	Jul. 01, 2014	Mar. 31, 2015	Mar. 31, 2014
Stock-Based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights		The Company’s stock-based compensation plans permit Parent Corporation common stock to be issued to key employees and directors of the Company and its subsidiaries. The options granted under the plans are intended to be either incentive stock options or non-qualified options. Under the 2009 Equity Incentive Plan, a total of 303,615 shares are available for grant and issuance as of March 31, 2015. In addition, a total of 237,621 shares remain available for grant and issuance under Legacy ConnectOne equity plans. Options may be exercised with shares issued from Treasury shares, newly issued shares or a combination of both.Options have been granted to purchase common stock at the fair market value of the stock at the date of grant. Options are exercisable after a three to five-year vesting period starting one year after the date of grant and generally expire ten years from the date of grant. Restricted shares have a vesting schedule ranging from 1-3 years.Stock-based compensation expense for share-based payment awards is based on the grant date fair value estimated on the date of grant. The Company recognizes compensation costs for those shares expected to vest on a straight-line basis over the requisite service period of the award, which is generally the option vesting term of three years. The Company estimates the forfeiture rate based on its historical experience during the preceding seven fiscal years.
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares	37,110	20,565
Restricted Stock [Member]
Stock-Based Compensation (Details) [Line Items]
Stock Issued During Period, Shares, Restricted Stock Award, Gross		89,104	18,829
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars)		1,358,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition		2 years 36 days
Employee Stock Option [Member]
Stock-Based Compensation (Details) [Line Items]
Common Stock Underlying Grant Options		0	0
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars)		35,500
Employee Director Stock Option Plan 2009 [Member]
Stock-Based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant		303,615
Legacy ConnectOne Equity Plan [Member]
Stock-Based Compensation (Details) [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant		237,621

StockBased_Compensation_Detail1

Stock-Based Compensation (Details) - Disclosure of share-based compensation arrangements by share-based payment award (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Disclosure of share-based compensation arrangements by share-based payment award [Abstract]
Outstanding Beginning Balance - shares	768,795	882,657
Outstanding Beginning Balance - weighted average exercise price (in Dollars per share)	$5.87	$5.65
Outstanding Ending Balance - weighted average remaining contractual term (years)	2 years 244 days
Outstanding Ending Balance - aggregate intrinsic value (in Dollars)	$10,273,607
Exercisable at March 31, 2015	763,028
Exercisable at March 31, 2015 (in Dollars per share)	$5.80
Exercisable at March 31, 2015	2 years 226 days
Exercisable at March 31, 2015 (in Dollars)	$10,244,830
Exercised	-110,500	-100,911
Exercised (in Dollars per share)	$3.85
Forfeited	-3,362

StockBased_Compensation_Detail2

Stock-Based Compensation (Details) - Schedule of share-based payment award, nonvested shares (USD $)	0 Months Ended	3 Months Ended
	Jul. 01, 2014	Mar. 31, 2015	Dec. 31, 2014
Schedule of share-based payment award, nonvested shares [Abstract]
Stock based compensation, Nonvested Shares		89,104	50,203
Stock based compensation, Weighted-Average Grant Date Fair Value		$16.43	$11.79
Granted		59,466
Granted		$18.47
Vested	-37,110	-20,565
Vested		$10.76

Components_of_Net_Periodic_Pen2

Components of Net Periodic Pension Cost (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015
Compensation and Retirement Disclosure [Abstract]
Defined Benefit Plan, Contributions by Employer	$2

Components_of_Net_Periodic_Pen3

Components of Net Periodic Pension Cost (Details) - Schedule of net benefit costs (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Schedule of net benefit costs [Abstract]
Interest cost	$138	$144
Expected return on plan assets	-137	-149
Net amortization	108	56
Recognized settlement loss	450
Total periodic pension expense	559	51
Net actuarial gain	-742	-1,281
Total recognized in other comprehensive income	-742	-1,281
Total recognized in net periodic expense and other comprehensive income (before tax)	($183)	($1,230)

FHLB_and_other_borrowings_Deta

FHLB and other borrowings (Details) (USD $)	3 Months Ended
	Mar. 31, 2015
FHLB and other borrowings (Details) [Line Items]
Number of Federal Home Loan Bank Notes	3
Long-term Line of Credit	$809,000,000
Line of Credit Facility, Remaining Borrowing Capacity	315,000,000
Federal Home Loan Bank Note One [Member]
FHLB and other borrowings (Details) [Line Items]
Extinguishment of Debt, Amount	2,500,000
Debt Instrument, Maturity Date	2-Apr-18
Federal Home Loan Bank Note Two [Member]
FHLB and other borrowings (Details) [Line Items]
Extinguishment of Debt, Amount	7,500,000
Debt Instrument, Maturity Date	2-Apr-18
Federal Home Loan Bank Note Three [Member]
FHLB and other borrowings (Details) [Line Items]
Extinguishment of Debt, Amount	$5,000,000
Debt Instrument, Maturity Date	16-Jul-18

FHLB_and_other_borrowings_Deta1

FHLB and other borrowings (Details) - Schedule of components of FHLB and other borrowings and weighted average interest rates (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
By type of borrowing:
FHLB and other borrowings	$525,148	$495,553
Weighted average interest rates	1.51%	1.48%
By remaining period to maturity:
One year or less	238,148	258,553
One year or less	0.50%	0.50%
One to two years	55,000	30,000
One to two years	1.20%	1.40%
Two to three years	71,000	71,000
Two to three years	2.33%	2.33%
Three to four years	96,000	96,000
Three to four years	2.67%	2.67%
Four to five years	25,000
Four to five years	1.85%
Greater than five years	40,000	40,000
Greater than five years	3.43%	3.42%
Federal Home Loan Bank Advances [Member]
By type of borrowing:
FHLB and other borrowings	494,148	464,553
Weighted average interest rates	1.23%	1.18%
Repurchase Agreements [Member]
By type of borrowing:
FHLB and other borrowings	$31,000	$31,000
Weighted average interest rates	5.90%	5.90%

Subordinated_Debentures_Detail

Subordinated Debentures (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015
Subordinated Borrowings [Abstract]
Value of subordinated debentures received by Trust	$5.20
Floating interest rate on subordinated debentures	3.10%

Subordinated_Debentures_Detail1

Subordinated Debentures (Details) - Schedule of Subordinated Borrowing (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Schedule of Subordinated Borrowing [Abstract]
Issuance Date	19-Dec-03	19-Dec-03
Securities Issued	$5,000,000	$5,000,000
Liquidation Value	$1,000 per Capital Security	$1,000 per Capital Security
Coupon Rate	Floating 3-month LIBOR + 285 Basis Points	Floating 3-month LIBOR + 285 Basis Points
Maturity	23-Jan-34	23-Jan-34
Redeemable by Issuer Beginning	23-Jan-09	23-Jan-09

Subsequent_Event_Details

Subsequent Event (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2014	Apr. 27, 2015
Subsequent Event (Details) [Line Items]
Amount Recorded as Fraud Pretax Loss	$2.40
Subsequent Event [Member]
Subsequent Event (Details) [Line Items]
Amount Received as Pretax Recovery		$2.20