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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Oct. 31, 2018
Oct. 31, 2017
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ 276 $ 175
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 157,395 122,092
Treasury stock at cost, shares 235,536 253,083