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Accounts Receivable, Net - Schedule of Accounts Receivable (Details) - USD ($)
$ in Thousands
Oct. 31, 2018
Oct. 31, 2017
Receivables [Abstract]    
Contract receivable $ 7,415 $ 41,073
Unbilled contracts receivables [1] 10,632 18,162
Commercial customers accounts receivable 18,047 59,235
Advanced Technologies including U.S. government, Amount billed receivable 1,865 1,934
Advanced Technologies including U.S. government, Unbilled receivables 3,127 7,352
Advanced Technologies including U.S. government, Accounts receivable [2] 4,992 9,286
Accounts receivable, net $ 23,039 $ 68,521
[1] Additional long-term unbilled receivables of $9.4 million and $12.8 million are included within “Other Assets” as of October 31, 2018 and 2017, respectively.
[2] Total U.S. government accounts receivable, including unbilled receivables, outstanding as of October 31, 2018 and 2017 were $2.3 million and $3.2 million, respectively.