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Basic and Diluted Net Loss per Share - Schedule of Net (Loss) Income per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended
Jan. 31, 2022
Jan. 31, 2021
Basic net loss per common share:    
Net loss applicable to common stock $ (6,643) $ (4,333)
Less: Earnings allocated to unvested, restricted stock (13) (18)
Numerator: Net loss for basic EPS $ (6,656) $ (4,351)
Denominator: Weighted average common shares–basic (in shares) 17,448 17,405
Basic net loss per common share (in dollars per share) $ (0.38) $ (0.25)
Diluted net loss per common share:    
Net loss for basic EPS $ (6,656) $ (4,351)
Effect of dilutive unvested, restricted stock and preferred stock (in shares) 0 0
Numerator: Net loss for diluted EPS $ (6,656) $ (4,351)
Denominator: Weighted average common shares–basic (in shares) 17,448 17,405
Denominator: Weighted average common shares–diluted (in shares) 17,448 17,405
Diluted net loss per common share (in dollars per share) $ (0.38) $ (0.25)