CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Preferred Stock	Common stock	Treasury Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income/(Loss)	Total
Balance at Dec. 31, 2012	$ 14,918	$ 10,450	$ (9,043)	$ 224,096	$ 57,602	$ 25,728	$ 323,751
Balance (in shares) at Dec. 31, 2012		20,304,525
Increase (Decrease) in Shareholders' Equity
Net income					26,345		26,345
Other comprehensive income						(24,594)	(24,594)
Purchase of treasury stock			(204)				(204)
Purchase of treasury shares (in shares)		(14,796)
Stock option exercise		$ 23	752	(386)			389
Stock option exercise (in shares)		46,224
Stock option expense				161			161
Dividends — common stock					(5,709)		(5,709)
Restricted stock award		$ 21		569			590
Restricted stock award (in shares)		47,971
Director retainer award		$ 14		353			367
Director retainer award (in shares)		33,300
Dividends - preferred stock					(470)		(470)
Repurchase of preferred shares	(14,952)				(148)		(15,100)
Accretion of preferred stock discount	$ 34				(34)
Balance at Dec. 31, 2013		$ 10,508	(8,495)	224,793	77,586	1,134	305,526
Balance (in shares) at Dec. 31, 2013		20,417,224
Increase (Decrease) in Shareholders' Equity
Net income					28,996		28,996
Other comprehensive income						12,579	12,579
Purchase of treasury stock			(319)				(319)
Purchase of treasury shares (in shares)		(19,078)
Stock option exercise		$ 4	113	(51)			66
Stock option exercise (in shares)		6,950
Stock option expense				160			160
Dividends — common stock					(8,726)		(8,726)
Restricted stock award		$ 23		464			487
Restricted stock award (in shares)		34,337
Director retainer award		$ 11		348			359
Director retainer award (in shares)		21,780
Issuance of common stock in acquisition		$ 613		20,921			21,534
Issuance of common stock in acquisition (in shares)		1,226,312
Balance at Dec. 31, 2014		$ 11,159	(8,701)	246,635	97,856	13,713	360,662
Balance (in shares) at Dec. 31, 2014		21,687,525
Increase (Decrease) in Shareholders' Equity
Net income					35,542		35,542
Other comprehensive income						(1,089)	(1,089)
Purchase of treasury stock			(3,527)				(3,527)
Purchase of treasury shares (in shares)		(176,405)
Stock option exercise		$ 13	416	(135)			294
Stock option exercise (in shares)		25,075
Stock option expense				180			180
Dividends — common stock					(11,680)		(11,680)
Restricted stock award		$ 21		642			663
Restricted stock award (in shares)		27,955
Director retainer award		$ 8		307			315
Director retainer award (in shares)		15,425
Repurchase of preferred shares							(3,381)
Balance at Dec. 31, 2015		$ 11,201	$ (11,812)	$ 247,629	$ 121,718	$ 12,624	$ 381,360
Balance (in shares) at Dec. 31, 2015		21,579,575