Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2011	Dec. 31, 2010
Balance Sheets (Parenthetical)
Common Stock, No Par Value	$ 0	$ 0
Common stock, shares authorized	unlimited	unlimited
Common Stock, Shares, Issued	152,717,724	152,567,813
Common Stock, Shares, Outstanding	152,717,724	152,567,813