Preferred Stock (Details)	12 Months Ended			12 Months Ended			3 Months Ended	5 Months Ended	9 Months Ended	12 Months Ended
	Oct. 31, 2012 USD ($)	Oct. 31, 2010 USD ($)	Oct. 31, 2011 USD ($)	Oct. 31, 2012 Series B Preferred Stock [Member] USD ($)	Oct. 31, 2011 Series B Preferred Stock [Member] USD ($)	Oct. 31, 2012 Series 2 Preferred Stock [Member]	Oct. 31, 2012 Series 1 Preferred Shares [Member] CAD	Mar. 30, 2012 Series 1 Preferred Shares [Member] CAD	Dec. 31, 2011 Series 1 Preferred Shares [Member]	Oct. 31, 2012 Series 1 Preferred Shares [Member] CAD	Oct. 31, 2011 Series 1 Preferred Shares [Member] USD ($)	Oct. 31, 2011 Series 1 Preferred Shares [Member] CAD	Dec. 31, 2020 Series 1 Preferred Shares [Member] CAD	Oct. 31, 2012 Series 1 Preferred Shares [Member] USD ($)	Mar. 31, 2011 Series 1 Preferred Shares [Member] CAD
Statement [Line Items]
Preferred Stock, Shares Authorized				250,000
Preferred Stock, Liquidation Preference Per Share				$ 1,000
Preferred Stock, Shares Issued				64,020.0	64,020.0
Preferred Stock, Shares Outstanding				64,020.0	64,020.0	1,000,000
Temporary Equity, Carrying Amount, Attributable to Parent	$ 59,857,000		$ 59,857,000	$ 59,900,000
Preferred Stock, Dividends Per Share, Declared				$ 50
Dividends, Preferred Stock, Cash		3,200,000		3,200,000	3,200,000
Preferred Stock, Liquidation Preference, Value	64,020,000		64,020,000	64,000,000	64,000,000
Shares of Common Stock Issued Upon Conversion of Each Share of Series B Preferred Stock				85.1064
Stock Conversion Price				$ 11.75
Percent of Conversion Price To Exceed to Exercise Conversion Right				150.00%
Percent of Voting Power of All Classes of Stock to Become a Beneficial Owner				50.00%
Percent of Aggregate Voting Power of Voting Stock				100.00%
Percent of conversion price of Series B Preferred Stock				105.00%
Percent of Consideration				at least 90 percent of the consideration
Discount on Market Price of Shares of Common Stock				5.00%
Accrued and Unpaid Dividend Obligation													21,100,000		12,500,000
Quarterly Dividend Rate										1.25%
Percent of Additional Return of Capital Payments									9.80%
Payments of Dividends								1,250,000		500,000
Return of Capital Payments							187,500			750,000
Preferred Stock, Redemption Amount													4,400,000
Carrying Value of Preferred Shares, Total							14,200,000			14,200,000	16,700,000	16,600,000		14,200,000	25,200,000
Adjustments to Additional Paid in Capital, Other											9,000,000
Return of Capital and Dividend Payments										4,400,000		10,900,000
Interest Expense, Other										2,000,000		2,300,000
percent calculated on weighted average price of common shares										the number of common shares is determined by dividing the cash dividend obligation by 95 percent of the volum weighted average price in US dollars
Preferred Stock, Dividend Rate, Percentage		2.45%
Percent of Annual Dividend Payment Stream	5 percent annual dividend payment stream
Percent of Common Stock Price										95.00%
Derivative Liability, Fair Value, Gross Liability	700,000		600,000
Preferred Stock, Redemption Price Per Share														$ 25
Preferred Stock Exchange from July 31, 2010 to July 31, 2015														129.46
Preferred Stock Exchange Right Per Common Stock Share														$ 138.71