XML 20 R121.htm IDEA: XBRL DOCUMENT v2.4.0.6
Carrying Values and Estimated Fair Values of Financial Instruments (Parenthetical) (Detail) (Manufacturing Operations)
Oct. 31, 2012
Notes Payable to Banks
Oct. 31, 2009
Notes Payable to Banks
Oct. 31, 2012
Notes Payable to Banks
Carrying Amount
Oct. 31, 2011
Notes Payable to Banks
Carrying Amount
Oct. 31, 2012
Convertible Subordinated Debt
Oct. 31, 2009
Convertible Subordinated Debt
Oct. 31, 2012
Convertible Subordinated Debt
Carrying Amount
Oct. 31, 2011
Convertible Subordinated Debt
Carrying Amount
Oct. 31, 2012
Tax Exempt Bond
Oct. 31, 2012
Tax Exempt Bond
Carrying Amount
Oct. 31, 2011
Tax Exempt Bond
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]                      
Debt instrument, interest rate, stated percentage 8.25% 8.25% 8.25% 8.25% 3.00% 3.00% 3.00% 3.00% 6.50% 6.50% 6.50%