CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2011	Dec. 31, 2010
ASSETS
Securities held-to-maturity, fair value	$ 2,369,118	$ 4,411,856
Stockholders' equity:
Preferred stock, par value (in dollars per share)	$ 0	$ 0
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	71,250	71,250
Preferred stock, shares outstanding (in shares)	95,000	95,000
Common stock, par value (in dollars per share)	$ 1.00	$ 1.00
Common stock, shares authorized (in shares)	90,000,000	90,000,000
Common stock, shares issued (in shares)	34,354,960	33,870,380
Common stock, shares outstanding (in shares)	34,354,960	33,870,380