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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - shares
Jul. 31, 2017
Oct. 31, 2016
Statement of Financial Position [Abstract]    
Shares of benefical interest, authorized 8,000,000 8,000,000
Shares of benefical interest, issued 6,993,152 6,993,152
Vested share units to trustees, issued 109,680 77,544
Treasury stock at cost, shares 253,083 253,083