Consolidated Balance Sheets (unaudited) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Securities held to maturity fair values	$ 56,824	$ 61,496	$ 61,877
Preferred stock, shares authorized	5,000,000	5,000,000	5,000,000
common stock, shares authorized	40,000,000	40,000,000	40,000,000
Common stock, shares issued	19,679,659	19,669,302	17,013,008
Common stock, shares outstanding	19,679,659	19,669,302	17,013,008
Series B Preferred Stock
Preferred stock, shares issued	63,500	63,500	63,500
Preferred stock, shares outstanding	63,500	63,500	63,500
Series C Preferred Stock
Preferred stock, shares issued	728,706	728,706	0
Preferred stock, shares outstanding	728,706	728,706	0