Accounts Receivable, Net (Tables)

6 Months Ended

Apr. 30, 2018

Receivables [Abstract]

Schedule of Accounts Receivable

Accounts receivable as of April 30, 2018 and October 31, 2017 consisted of the following:

	April 30,		October 31,
	2018		2017
Commercial Customers:
Amount billed	$	15,621	$	41,073
Unbilled recoverable costs (1)		22,746		18,162
		38,367		59,235
Advanced Technologies (including U.S. government(2)):
Amount billed		1,980		1,934
Unbilled recoverable costs		5,842		7,352
		7,822		9,286
Accounts receivable, net	$	46,189	$	68,521

(1) Additional long-term unbilled recoverable costs of $11.2 million and $12.8 million are included within “Other assets” as of April 30, 2018 and October 31, 2017, respectively. 

(2) Total U.S. government accounts receivable, including unbilled recoverable cost, outstanding as of April 30, 2018 and October 31, 2017 were $4.5 million and $3.2 million, respectively.