CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Common Stock	Additional Paid-in Capital	Accumulated Retained Earnings	Accumulated Other Comprehensive Income	Total
Balance at Dec. 31, 2011	$ 103	$ 76,310	$ 10,046	$ 318	$ 86,777
Balance (in shares) at Dec. 31, 2011	10,337,626
Increase (Decrease) in Stockholders' Equity
Net Income			15,776		15,776
Other comprehensive income (loss)				787	787
Share-based compensation expense		177			177
Issuance of common stock	33	30,925			30,958
Issuance of common stock (in shares)	3,300,000
Repurchase of common stock		(195)			(195)
Repurchase of common stock (in shares)	(36,640)
Exercise of stock options	1	236			237
Exercise of stock options (in shares)	60,662
Balance at Dec. 31, 2012	137	107,453	25,822	1,105	134,517
Balance (in shares) at Dec. 31, 2012	13,661,648
Increase (Decrease) in Stockholders' Equity
Net Income			8,993		8,993
Other comprehensive income (loss)				(4,182)	(4,182)
Share-based compensation expense		943			943
Issuance of common stock	29	34,895			34,924
Issuance of common stock (in shares)	2,972,472
Repurchase of common stock		(59)			(59)
Repurchase of common stock (in shares)	(35,005)
Exercise of stock options		90			90
Exercise of stock options (in shares)	57,164
Balance at Dec. 31, 2013	166	143,322	34,815	(3,077)	175,226
Balance (in shares) at Dec. 31, 2013	16,656,279				16,656,279
Increase (Decrease) in Stockholders' Equity
Net Income			16,616		16,616
Other comprehensive income (loss)				3,595	3,595
Share-based compensation expense		514			514
Issuance of common stock	6	9,006			9,012
Issuance of common stock (in shares)	562,469
Repurchase of common stock	(4)	(5,634)			(5,638)
Repurchase of common stock (in shares)	(447,450)
Exercise of stock options	1	266			267
Exercise of stock options (in shares)	132,586
Balance at Dec. 31, 2014	$ 169	$ 147,474	$ 51,431	$ 518	$ 199,592
Balance (in shares) at Dec. 31, 2014	16,903,884				16,903,884