CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jan. 31, 2021	Oct. 31, 2020
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 896	$ 804
Deferred interest	$ 358	$ 360
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	159,063	152,144
Treasury stock at cost, shares	136,501	136,501