BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2012	Dec. 31, 2011
SHAREHOLDERS' EQUITY
Common stock, par value	$ 0	$ 0
Common stock, authorized shares	10,000,000	10,000,000
Common stock, issued shares	4,804,708	4,892,977
Common stock, outstanding shares	4,804,708	4,892,977
Treasury	90,269	0