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Condensed Consolidated Statement of Equity (Unaudited) - 9 months ended Jul. 31, 2017 - USD ($)
$ in Thousands
Common Stock [Member]
Common Class A [Member]
Common Stock [Member]
Common Class B [Member]
Preferred Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings [Member]
Treasury Stock [Member]
Total
Balance (in shares) at Oct. 31, 2016 132,046,012 15,251,061 5,600        
Balance at Oct. 31, 2016 $ 1,438 $ 159 $ 135,299 $ 706,137 $ (856,183) $ (115,360) $ (128,510) [1]
Stock options, amortization and issuances (in shares) 48,250        
Stock options, amortization and issuances       467     467
Restricted stock amortization, issuances and forfeitures (in shares) 188,548 59,046          
Restricted stock amortization, issuances and forfeitures $ 2 $ 1   912     915
Conversion of Class B to class A common stock (in shares) 2,500 (2,500)        
Conversion of Class B to class A common stock            
Net loss         (344,034)   (344,034)
Balance at Jul. 31, 2017 $ 1,440 $ 160 $ 135,299 $ 707,516 $ (1,200,217) $ (115,360) $ (471,162)
Balance (in shares) at Jul. 31, 2017 132,285,310 15,307,607 5,600        
[1] Derived from the audited balance sheet as of October 31, 2016. See notes to condensed consolidated financial statements (unaudited).