Consolidated Statement of Changes in Shareholders' Equity - Unaudited (USD $) In Thousands, except Share data	Total	Common Stock	Additional Paid in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock
Beginning balance at Dec. 31, 2010	$ 105,140	$ 8,398	$ 88,132	$ 10,506	$ (1,896)	$ 0
Beginning balance (in shares) at Dec. 31, 2010	8,398,015
Comprehensive income	2,381			(1,531)	3,912
Stock-based compensation expense	329		329
Common stock issued, net of costs	15,527	1,389	14,138
Common stock issued, net of costs (in shares)	1,388,893
Ending balance at Jun. 30, 2011	123,377	9,787	102,599	8,975	2,016	0
Ending balance (in shares) at Jun. 30, 2011	9,786,908
Beginning balance at Dec. 31, 2011	147,748	11,395	122,602	14,496	(245)	(500)
Beginning balance (in shares) at Dec. 31, 2011	11,347,683
Comprehensive income	9,702			9,616	86
Stock-based compensation expense	1,266		1,266
Ending balance at Jun. 30, 2012	$ 158,716	$ 11,395	$ 123,868	$ 24,112	$ (159)	$ (500)
Ending balance (in shares) at Jun. 30, 2012	11,347,683