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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Oct. 31, 2017
Oct. 31, 2016
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ 175 $ 191
Shares of benefical interest, no par value (in dollars per share)
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 122,092 77,544
Treasury stock at cost, shares 253,083 253,083