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Redeemable Preferred Stock - Additional Information (Details)
 12 Months Ended
Nov. 01, 2017
USD ($)
Installment
Sep. 05, 2017
USD ($)
$ / shares
shares
Oct. 31, 2017
USD ($)
TradingDay
$ / shares
shares
Oct. 31, 2017
CAD
TradingDay
shares
Oct. 31, 2016
USD ($)
$ / shares
shares
Oct. 31, 2016
CAD
Oct. 31, 2015
USD ($)
shares
Oct. 31, 2015
CAD
shares
Dec. 31, 2020
CAD
Oct. 31, 2017
CAD
CAD / shares
shares
Apr. 28, 2017
$ / shares
Oct. 31, 2016
CAD
shares
Class Of Stock [Line Items]                        
Net proceeds from issuance of Series C preferred shares     $ 27,866,000   $ 0   $ 0          
Common stock price per share | $ / shares                     $ 1.15  
Derivative liability, fair value, gross liability     $ 800,000   $ 700,000              
Series C Preferred Stock [Member]                        
Class Of Stock [Line Items]                        
Preferred stock, par value | $ / shares     $ 0.01                  
Preferred stock, dividend rate, percentage     15.00% 15.00%                
Temporary equity, carrying amount, attributable to parent     $ 27,700,000                  
Conversion of stock conversion price | $ / shares     $ 1.84                  
Preferred stock redemption terms     On November 1, 2017 and on the sixteenth day and first day of each calendar month thereafter until March 1, 2019, subject to extension in certain circumstances (the “Maturity Date”), inclusive, the Company will redeem the stated value of Series C Preferred Shares in thirty-three equal installments of $1.0 million (each bimonthly amount, an “Installment Amount” and the date of each such payment, an “Installment Date”). The holders will have the ability to defer Installment payments, but not beyond the Maturity Date. In addition, during each period commencing on the 11th trading day prior to an Installment Date and prior to the immediately subsequent Installment Date, the holders may elect to accelerate the conversion of Series C Preferred Shares at then applicable installment conversion price, provided that the holders may not elect to effect any such acceleration during such installment period if either (x) in the aggregate, all the accelerations in such installment period exceeds the sum of three other Installment Amounts, or (y) the number of Series C Preferred Shares subject to prior accelerations exceeds in the aggregate twelve Installment Amounts. On November 1, 2017 and on the sixteenth day and first day of each calendar month thereafter until March 1, 2019, subject to extension in certain circumstances (the “Maturity Date”), inclusive, the Company will redeem the stated value of Series C Preferred Shares in thirty-three equal installments of $1.0 million (each bimonthly amount, an “Installment Amount” and the date of each such payment, an “Installment Date”). The holders will have the ability to defer Installment payments, but not beyond the Maturity Date. In addition, during each period commencing on the 11th trading day prior to an Installment Date and prior to the immediately subsequent Installment Date, the holders may elect to accelerate the conversion of Series C Preferred Shares at then applicable installment conversion price, provided that the holders may not elect to effect any such acceleration during such installment period if either (x) in the aggregate, all the accelerations in such installment period exceeds the sum of three other Installment Amounts, or (y) the number of Series C Preferred Shares subject to prior accelerations exceeds in the aggregate twelve Installment Amounts.                
Preferred stock redemption maturity date     Mar. 01, 2019 Mar. 01, 2019                
Common stock consecutive trading day | TradingDay     10 10                
Repayment percentage of installment amount     108.00% 108.00%                
Preferred shares, triggering event redemption terms     In the event of a triggering event, as defined in the Certificate of Designations, the holders of the Series C Preferred Shares can force redemption at a price equal to the greater of (i) the conversion amount to be redeemed multiplied by 125% and (ii) the product of (X) the Conversion Rate with respect to the Conversion Amount in effect at such time as such Holder delivers a Triggering Event Redemption Notice multiplied by (Y) the greatest Closing Sale Price of the common stock on any Trading Day during the period commencing on the date immediately preceding such Triggering Event and ending on the date the Company makes the entire payment required. In the event of a triggering event, as defined in the Certificate of Designations, the holders of the Series C Preferred Shares can force redemption at a price equal to the greater of (i) the conversion amount to be redeemed multiplied by 125% and (ii) the product of (X) the Conversion Rate with respect to the Conversion Amount in effect at such time as such Holder delivers a Triggering Event Redemption Notice multiplied by (Y) the greatest Closing Sale Price of the common stock on any Trading Day during the period commencing on the date immediately preceding such Triggering Event and ending on the date the Company makes the entire payment required.                
Preferred shares voting rights     no voting rights no voting rights                
Convertible preferred stock, converted to common stock | shares     200 200                
Convertible preferred stock, reduction in carrying amount     $ 200,000                  
Preferred Stock, Liquidation Preference, Value     $ 33,300,000                  
Shares of common stock issued upon conversion | shares [1]     18,097,826             18,097,826    
Series C Preferred Stock [Member] | Volume Weighted Average Price [Member]                        
Class Of Stock [Line Items]                        
Percentage of common stock on trading day immediately prior to applicable installment date     87.50% 87.50%                
Series C Preferred Stock [Member] | Arithmetic Average Of Two Lowest Volume Weighted Average Price [Member]                        
Class Of Stock [Line Items]                        
Percentage of common stock on trading day immediately prior to applicable installment date     87.50% 87.50%                
Series C Preferred Stock [Member] | Subsequent Event [Member]                        
Class Of Stock [Line Items]                        
Number of preferred stock redemption equal installments | Installment 33                      
Redemption of preferred shres in installments, each installment amount $ 1,000,000                      
Series C Preferred Stock [Member] | Convertible Preferred Offering [Member]                        
Class Of Stock [Line Items]                        
Aggregate number of shares issued | shares   33,500                    
Sale of stock price per share | $ / shares   $ 0.01                    
Preferred stock, stated value per share | $ / shares   $ 1,000                    
Net proceeds from issuance of Series C preferred shares   $ 27,900,000                    
Common stock price per share | $ / shares   $ 895.52                    
Gross proceeds from sale of preferred stock   $ 30,000,000                    
Preferred stock, shares issued | shares     33,300             33,300    
Preferred stock, shares outstanding | shares     33,300             33,300    
Temporary equity, carrying amount, attributable to parent     $ 27,700,000                  
Convertible preferred stock, terms of conversion   The Series C Preferred Shares are convertible into shares of common stock subject to the beneficial ownership limitations provided in the Certificate of Designations for Series C Preferred Stock (the “Certificate of Designations”), at a conversion price equal to $1.84 per share of common stock (“Conversion Price”), subject to adjustment as provided in the Certificate of Designations, at any time at the option of the holder. In the event of a triggering event, as defined in the Certificate of Designations, the Series C Preferred Shares are convertible into shares of common stock at a conversion price of the lower of $1.84 per share and 85% of the lowest volume weighted average price (“VWAP”) of the common stock of the five Trading Days (as such term is defined in the Certificate of Designations) immediately prior to delivery of the applicable conversion notice. The holders will be prohibited from converting Series C Preferred Shares into shares of common stock if, as a result of such conversion, such holder, together with its affiliates, would own more than 8.99% of the total number of shares of common stock then issued and outstanding. Each holder has the right to increase its maximum percentage up to 9.99% upon 60 days’ notice to the Company.                    
Conversion of stock conversion price | $ / shares   $ 1.84                    
Percentage of lowest volume weighted average price of common stock considered as conversion price   85.00%                    
Conversion terms, increase beneficial ownership limitation percentage upon notice periods   60 days                    
Series C Preferred Stock [Member] | Maximum [Member]                        
Class Of Stock [Line Items]                        
Preferred stock, shares authorized | shares     250,000             250,000    
Series C Preferred Stock [Member] | Maximum [Member] | Convertible Preferred Offering [Member]                        
Class Of Stock [Line Items]                        
Conversion terms, beneficial ownership increase, percentage   9.99%                    
Series C Preferred Stock [Member] | Minimum [Member] | Convertible Preferred Offering [Member]                        
Class Of Stock [Line Items]                        
Conversion terms, beneficial ownership limitation, percentage   8.99%                    
Series B Cumulative Convertible Perpetual Preferred Stock [Member]                        
Class Of Stock [Line Items]                        
Preferred stock, shares authorized | shares     105,875   105,875         105,875   105,875
Preferred stock, dividend rate, percentage     5.00% 5.00% 5.00% 5.00%            
Preferred stock, shares issued | shares     64,020   64,020         64,020   64,020
Preferred stock, shares outstanding | shares     64,020   64,020         64,020   64,020
Temporary equity, carrying amount, attributable to parent     $ 59,900,000   $ 59,900,000              
Preferred shares, dividends declared | $ / shares     $ 50.00                  
Preferred shares voting rights     no voting rights no voting rights                
Preferred stock, liquidation preference per share | $ / shares     $ 1,000.00   $ 1,000.00              
Dividends, preferred stock, cash     $ 3,200,000   $ 3,200,000   $ 3,200,000          
Cumulative unpaid dividends     0   0              
Payment on junior shares     0                  
Preferred Stock, Liquidation Preference, Value     $ 64,000,000   $ 64,000,000              
Shares of common stock issued upon conversion | shares     7.0922             7.0922    
Stock conversion price | $ / shares     $ 141.00                  
Percent of conversion price to exceed to exercise conversion right     150.00%             150.00%    
Number of trading days | TradingDay     20 20                
Number of consecutive trading days | TradingDay     30 30                
Discount on market price of shares of common stock     5.00%             5.00%    
Class A Cumulative Redeemable Exchangeable Preferred Shares [Member]                        
Class Of Stock [Line Items]                        
Preferred stock, shares outstanding | shares     1,000,000             1,000,000    
Shares of common stock issued upon conversion | shares [2]     15,167   15,167   15,167 15,167   15,167   15,167
Payments of dividends | CAD       CAD 500,000                
Return of capital payments | CAD       750,000                
Return of capital and dividend payments | CAD       1,300,000   CAD 1,300,000   CAD 1,300,000        
Interest expense, other | CAD       CAD 2,600,000   CAD 2,400,000   CAD 2,300,000        
Carrying value of preferred shares, total     $ 15,100,000   $ 13,500,000         CAD 19,400,000   CAD 18,000,000
Percent calculated on weighted average price of common shares     the number of common shares is determined by dividing the cash dividend obligation by 95% of the volume weighted average price in U.S. dollars the number of common shares is determined by dividing the cash dividend obligation by 95% of the volume weighted average price in U.S. dollars                
Percent of common stock price     95.00% 95.00%                
Preferred stock, redemption price per share | CAD / shares                   CAD 25.00    
Preferred stock exchange right per common stock share | CAD                   CAD 1,664.52    
Class A Cumulative Redeemable Exchangeable Preferred Shares [Member] | Scenario, Forecast [Member]                        
Class Of Stock [Line Items]                        
Accrued and unpaid dividend obligation | CAD                 CAD 21,100,000      
Preferred stock, redemption amount | CAD                 CAD 4,400,000      
[1] The number of shares of common stock issuable upon conversion of the Series C Preferred Stock was calculated using the stated value outstanding on October 31, 2017 of $33,300,000 (original total stated value of $33,500,000 less conversion through October 31, 2017 totaling $200,000) divided by the conversion price of $1.84.
[2] Refer to Note 13, Redeemable Preferred Stock, for information on the calculation of the common shares upon conversion.