Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Statement of Financial Position [Abstract]
Securities available-for-sale at amortized cost	$ 255,844	$ 288,914
Accumulated amortization on core deposit intangible	$ 10,855	$ 10,546
Preferred stock, par value	$ 0	$ 0
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	28,405	28,405
Preferred stock, shares outstanding	28,405	28,405
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	33,333,333	33,333,333
Common stock, shares issued	14,380,127	14,383,986
Common stock, shares outstanding	14,380,127	14,383,986