Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Assets
Cash and due from banks , reserves	$ 7,990	$ 3,487
Securities available-for-sale, at Cost	355,496	257,472
Securities held-to-maturity , at fair value	$ 101,131	$ 1,608
Shareholders' equity
Common stock, par value (in dollars per share)	$ 0.10	$ 0.10
Common stock, authorized (in shares)	30,000,000	30,000,000
Common stock, issued (in shares)	10,615,983	9,880,743
Common stock, outstanding (in shares)	10,465,506	9,730,266
Treasury stock (in shares)	150,477	150,477
Preferred Stock Series A [Member]
Shareholders' equity
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, authorized (in shares)	5,000,000	5,000,000
Preferred stock, issued (in shares)	0	20,000
Preferred stock, outstanding (in shares)	0	20,000
Preferred Stock Series B [Member]
Shareholders' equity
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, authorized (in shares)	5,000,000	5,000,000
Preferred stock, issued (in shares)	32,000	0
Preferred stock, outstanding (in shares)	32,000	0