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Consolidated Balance Sheets Consolidated Balance Sheet Parentheticals (USD $)
Dec. 31, 2012
Dec. 31, 2011
Preferred Stock, No Par Value $ 0 $ 0
Preferred Stock, Shares Authorized 30,000,000 30,000,000
Preferred Stock, Shares Issued 0 0
Preferred Stock, Shares Outstanding 0 0
Common Stock, No Par Value $ 0 $ 0
Common Stock, Shares Authorized 160,000,000 160,000,000
Common Stock, Shares, Issued 75,556,272 75,362,956
Common Stock, Shares, Outstanding 75,556,272 75,362,956