Consolidated Balance Sheets (unaudited) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Assets
Cash and due from banks, reserves	$ 22,094	$ 14,083
Securities available-for-sale, at cost	376,554	412,065
Securities held-to-maturity, at fair value	$ 170,177	$ 156,924
Stockholders' 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)	11,389,263	11,386,611
Common stock, outstanding (in shares)	11,238,786	11,236,134
Treasury stock (in shares)	150,477	150,477
Preferred Stock Series B [Member]
Stockholders' 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	32,000
Preferred stock, outstanding (in shares)	32,000	32,000
Preferred Stock Series C [Member]
Stockholders' equity:
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, authorized (in shares)	100,000	100,000
Preferred stock, issued (in shares)	99,971	99,971
Preferred stock, outstanding (in shares)	99,971	99,971