Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Preferred Stock	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income	Total
Balance at Dec. 31, 2013	$ 3,604	$ 101,511	$ 6,020	$ 18,717	$ (3,425)	$ 126,427
Balance (in shares) at Dec. 31, 2013		25,397,780
Increase (Decrease) in Stockholders' Equity
Issuance of common stock in MISN Transaction		$ 60,255				60,255
Issuance of common stock in MISN Transaction (in shares)		7,541,326
Dividends declared ($0.24, $0.23 and $0.08 per share) during the year ended December 31, 2016, 2015 and 2014, respectively				(2,742)		(2,742)
Repurchases of common stock		$ (387)				(387)
Repurchases of common stock (in shares)		(51,732)
Stock issuance costs			(381)			(381)
Exercise of stock options		$ 269				269
Exercise of stock options (in shares)		68,339
Partial conversion of Series C preferred stock	(2,548)	$ 2,548	168	(168)
Partial conversion of Series C preferred stock (in shares)		840,841
Share-based compensation			993			993
Tax effect of share-based compensation			184			184
Net issuance of restricted share awards (in shares)		108,506
Net income				8,965		8,965
Other comprehensive income (loss)					4,357	4,357
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 ($0.24, $0.23 and $0.08 per share) during the year ended December 31, 2016, 2015 and 2014, respectively				(7,851)		(7,851)
Repurchases of common stock		$ (28)				(28)
Repurchases of common stock (in shares)		(3,696)
Exercise of stock options		$ 293				293
Exercise of stock options (in shares)		56,432
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			1,092			1,092
Tax effect of share-based compensation			105			105
Net issuance of restricted share awards (in shares)		46,521
Net income				15,349		15,349
Other comprehensive income (loss)					(466)	(466)
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 ($0.24, $0.23 and $0.08 per share) during the year ended December 31, 2016, 2015 and 2014, respectively				(8,217)		(8,217)
Repurchases of common stock		$ (1,635)				(1,635)
Repurchases of common stock (in shares)		(226,170)
Exercise of stock options		$ 826				826
Exercise of stock options (in shares)		115,176
Share-based compensation			1,138			1,138
Tax effect of share-based compensation			(79)			(79)
Net issuance of restricted share awards (in shares)		103,053
Net income				16,933		16,933
Other comprehensive income (loss)					(2,550)	(2,550)
Balance at Dec. 31, 2016		$ 164,708	$ 9,310	$ 40,916	$ (2,084)	$ 212,850
Balance (in shares) at Dec. 31, 2016		34,345,073