Accounts Receivable (Tables)

12 Months Ended

Oct. 31, 2016

Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

Accounts receivable at October 31, 2016 and 2015 consisted of the following (in thousands):

	2016		2015
Advanced Technology (including U.S. Government (1)):
Amount billed	$	2,463	$	433
Unbilled recoverable costs	3,068		3,077
	5,531		3,510
Commercial customers:
Amount billed	5,411		19,331
Unbilled recoverable costs	13,651		37,949
	19,062		57,280
	$	24,593	$	60,790

(1) Total U.S. Government accounts receivable outstanding at October 31, 2016 and 2015 is $2.2 million and $2.6 million, respectively.