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2. Property and Equipment, net (Tables)
12 Months Ended
Oct. 31, 2020
Table Text Block Supplement [Abstract]  
Property and Equipment, net

Property and equipment consist of the following as of October 31, 2020 and 2019:

 

    Estimated useful lives   2020   2019
             
Leasehold improvements   3-5 years   $ 4,000   $ 216,000
Equipment   5-10 years   4,789,000   6,413,000
Furniture and fixtures   5-10 years   29,000   593,000
        4,822,000   7,222,000
Less: accumulated depreciation       4,564,000   6,670,000
Total       $ 258,000   $ 552,000