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Accounts Receivable (Tables)
12 Months Ended
Oct. 31, 2015
Receivables [Abstract]  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
Accounts receivable at October 31, 2015 and 2014 consisted of the following (in thousands):
 
 
2015
 
2014
Advanced Technology (including U.S. Government (1)):
 
 
 
 
Amount billed
 
$
433

 
$
2,517

Unbilled recoverable costs
 
3,077

 
2,886

 
 
3,510

 
5,403

Commercial customers:
 
 
 
 
Amount billed
 
19,331

 
8,871

Unbilled recoverable costs
 
37,949

 
50,101

 
 
57,280

 
58,972

 
 
$
60,790

 
$
64,375


(1) Total U.S. Government accounts receivable outstanding at October 31, 2015 and 2014 is $2.6 million and