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Accounts Receivable, Net and Unbilled Receivables - Schedule of Accounts Receivable, Net and Unbilled Receivables (Details) - USD ($)
$ in Thousands
Jul. 31, 2021
Oct. 31, 2020
Accounts Receivable, Net and Unbilled Receivables    
Amount billed $ 11,659 $ 7,329
Unbilled receivables [1] 7,333 7,063
Commercial customers accounts receivable 18,992 14,392
Advanced Technologies including U.S. government, Amount billed [2] 2,523 2,234
Advanced Technologies including U.S. government, Unbilled receivables [2] 1,357 978
Advanced Technologies including U.S. government, Accounts receivable [2] 3,880 3,212
Accounts receivable, net and unbilled receivables $ 22,872 $ 17,604
[1] Additional long-term unbilled receivables of $13.6 million and $8.9 million are included within “Other Assets” as of July 31, 2021 and October 31, 2020, respectively.
[2] Total U.S. government accounts receivable, including unbilled receivables, outstanding as of July 31, 2021 and October 31, 2020 were $1.3 million and $1.1 million, respectively.