CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Retained Earnings (Deficit)	Accumulated Other Comprehensive Income (Loss)
Balance at Dec. 31, 2012	$ 134,517	$ 137	$ 107,453	$ 25,822	$ 1,105
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	34,924	$ 29	34,895
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	175,226	$ 166	143,322	34,815	(3,077)
Balance (in shares) at Dec. 31, 2013		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	9,012	$ 6	9,006
Issuance of common stock (in shares)		562,469
Repurchase of common stock	(5,638)	$ (4)	(5,634)
Repurchase of common stock (in shares)		(447,450)
Exercise of stock options	267	$ 1	266
Exercise of stock options (in shares)		132,586
Balance at Dec. 31, 2014	$ 199,592	$ 169	147,474	51,431	518
Balance (in shares) at Dec. 31, 2014	16,903,884	16,903,884
Increase (Decrease) in Stockholders' Equity
NET INCOME	$ 25,515
Other comprehensive income (loss)	(186)				(186)
Share-based compensation expense	1,165		1,165
Issuance of restricted stock, net (in shares)		60,000
Issuance of common stock	72,252	$ 45	72,207
Issuance of common stock (in shares)		4,480,645
Warrants exercised	689	$ 1	688
Warrants exercised (in shares)		125,316
Repurchase of common stock	(116)		(116)
Repurchase of common stock (in shares)		(7,165)
Exercise of stock options	69		69
Exercise of stock options (in shares)		8,066
Balance at Dec. 31, 2015	$ 298,980	$ 215	$ 221,487	$ 76,946	$ 332
Balance (in shares) at Dec. 31, 2015	21,570,746	21,570,746