Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Preferred Stock	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income	Total
Balance at Dec. 31, 2014	$ 1,056	$ 164,196	$ 6,984	$ 24,772	$ 932	$ 197,940
Balance (in shares) at Dec. 31, 2014		33,905,060
Increase (Decrease) in Stockholders' Equity
Dividends declared				(3,771)		(3,771)
Repurchases of common stock		$ (28)				(28)
Repurchases of common stock (in shares)		(3,696)
Exercise of stock options		$ 191				191
Exercise of stock options (in shares)		40,344
Partial conversion of Series C preferred stock	$ (1,056)	$ 1,056	70	(70)
Partial conversion of Series C preferred stock (in shares)		348,697
Share-based compensation			535			535
Tax benefit of share-based compensation			69			69
Net issuance of restricted share awards (in shares)		23,837
Net income				7,869		7,869
Other comprehensive income					(723)	(723)
Balance at Jun. 30, 2015		$ 165,415	7,658	28,800	209	202,082
Balance (in shares) at Jun. 30, 2015		34,314,242
Balance at Dec. 31, 2015		$ 165,517	8,251	32,200	466	206,434
Balance (in shares) at Dec. 31, 2015		34,353,014
Increase (Decrease) in Stockholders' Equity
Dividends declared				(4,105)		(4,105)
Repurchases of common stock		$ (1,635)				(1,635)
Repurchases of common stock (in shares)		(226,170)
Exercise of stock options		$ 49				49
Exercise of stock options (in shares)		7,877
Share-based compensation			525			525
Tax benefit of share-based compensation			(108)			(108)
Net issuance of restricted share awards (in shares)		70,821
Net income				8,200		8,200
Other comprehensive income					4,522	4,522
Balance at Jun. 30, 2016		$ 163,931	$ 8,668	$ 36,295	$ 4,988	$ 213,882
Balance (in shares) at Jun. 30, 2016		34,205,542