CONDENSED BALANCE SHEETS (UNAUDITED) (Parenthetical) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 2.50	$ 2.50
Common stock, shares authorized	4,000,000	4,000,000
Common stock, shares outstanding	2,339,139	2,339,139