BALANCE SHEETS (Parentheticals) (USD $)	Mar. 31, 2012	Dec. 31, 2011
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	11,027,768	10,823,050
Common stock, shares outstanding	10,995,149	10,790,431
Common Stock, no par value (in Dollars per share)	$ 0	$ 0
Convertible Preferred Stock, shares authorized	147,500	147,500
Convertible Preferred Stock, shares issued	52,784	52,784
Convertible Preferred Stock, shares outstanding	52,784	52,784
Convertible preferred stock, Series AA, no par value (in Dollars per share)	$ 0	$ 0
Treasury stock, shares	32,619	32,619