Accounts Receivable (Tables)

9 Months Ended

Jul. 31, 2014

Receivables [Abstract]

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

Accounts receivable as of July 31, 2014 and October 31, 2013 consisted of the following:

	July 31, 2014		October 31, 2013
Advanced Technology (including U.S. Government(1)):
Amount billed	$	1,276	$	786
Unbilled recoverable costs	2,756		639
	4,032		1,425
Commercial Customers:
Amount billed	5,769		17,344
Unbilled recoverable costs	29,754		30,347
	35,523		47,691
Accounts receivable, net	$	39,555	$	49,116

(1) Total U.S. Government accounts receivable outstanding as of July 31, 2014 is $1.6 million.