Accounts Receivable (Tables)

3 Months Ended

Jan. 31, 2015

Receivables [Abstract]

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

Accounts receivable as of January 31, 2015 and October 31, 2014 consisted of the following:

	January 31, 2015		October 31, 2014
Advanced Technology (including U.S. Government(1)):
Amount billed	$	855	$	2,517
Unbilled recoverable costs	4,973		2,886
	5,828		5,403
Commercial Customers:
Amount billed	10,566		8,871
Unbilled recoverable costs	44,234		50,101
	54,800		58,972
Accounts receivable, net	$	60,628	$	64,375

(1) Total U.S. Government accounts receivable outstanding as of January 31, 2015 and October 31, 2014 was $3.0 million and $1.7 million, respectively.