CONSOLIDATED BALANCE SHEETS [Parenthetical] (USD $)	Sep. 30, 2012	Dec. 31, 2011
Preferred stock, shares authorized	5,000,000	5,000,000	[1]
Preferred stock, shares issued	0	0	[1]
Preferred stock, shares outstanding	0	0	[1]
Common stock, par value (in dollars per share)	$ 1	$ 1	[1]
Common stock, shares authorized	25,000,000	25,000,000	[1]
Common stock, shares issued	6,913,636	6,860,367	[1]
Common stock, shares outstanding	6,913,636	6,860,367	[1]

[1] Derived from audited consolidated financial statements.