Consolidated Statements of Stockholders Equity (USD $) In Thousands, unless otherwise specified	Common Stock	Surplus	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Loss	Total
Balance at Dec. 31, 2011	$ 84	$ 52,962	$ 52,228	$ (715)	$ 2,428	$ 106,987
Increase (Decrease) in Stockholders' Equity
Net income			12,772			12,772
Shares issued under the dividend reinvestment plan ("DRP")	5	10,502				10,507
Stock awards granted and distributed		(580)		580
Stock awards forfeited		6		(6)
Vesting of stock awards				(175)		(175)
Exercise of stock options		(7)		7
Tax effect of stock plans		(18)				(18)
Share based compensation expense		1,343				1,343
Cash dividend declared, $0.92, $0.69, $1.15 per share for the years ended December 31, 2014, 2013 and 2012, respectively			(9,898)			(9,898)
Other comprehensive income, net of deferred income taxes					(2,846)	(2,846)
Balance at Dec. 31, 2012	89	64,208	55,102	(309)	(418)	118,672
Increase (Decrease) in Stockholders' Equity
Net income			13,093			13,093
Shares issued under the dividend reinvestment plan ("DRP")	4	8,656				8,660
Shares issues in common stock offering, net of offering costs (1,926,250 shares)	19	37,558				37,577
Stock awards granted and distributed	1	(435)		434
Stock awards forfeited		79		(79)
Vesting of stock awards				(291)		(291)
Exercise of stock options		(6)		10		4
Tax effect of stock plans		21				21
Share based compensation expense		1,296				1,296
Cash dividend declared, $0.92, $0.69, $1.15 per share for the years ended December 31, 2014, 2013 and 2012, respectively			(6,754)			(6,754)
Other comprehensive income, net of deferred income taxes					(12,818)	(12,818)
Balance at Dec. 31, 2013	113	111,377	61,441	(235)	(13,236)	159,460
Increase (Decrease) in Stockholders' Equity
Net income			13,763			13,763
Shares issued under the dividend reinvestment plan ("DRP")	1	630				631
Shares issued in the acquisition of FNBNY Bancorp, net of offering costs (240,598 shares)	2	5,946				5,948
Stock awards granted and distributed	1	(432)		431
Stock awards forfeited		58		(58)
Vesting of stock awards				(173)		(173)
Exercise of stock options		(3)		10		7
Tax effect of stock plans		36				36
Share based compensation expense		1,234				1,234
Cash dividend declared, $0.92, $0.69, $1.15 per share for the years ended December 31, 2014, 2013 and 2012, respectively			(10,657)			(10,657)
Other comprehensive income, net of deferred income taxes					4,869	4,869
Balance at Dec. 31, 2014	$ 117	$ 118,846	$ 64,547	$ (25)	$ (8,367)	$ 175,118