Quarterly report pursuant to sections 13 or 15(d)

Concentration Of Credit Risk

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Concentration Of Credit Risk
 3 Months Ended
Jan. 31, 2012
Concentration Of Credit Risk [Abstract]  
Concentration Of Credit Risk
3. CONCENTRATION OF CREDIT RISK

Financial instruments that potentially subject us to concentrations of credit risk consist principally of accounts receivable from sales in the ordinary course of business. Management reviews our accounts receivable for potential doubtful accounts and maintains an allowance for estimated uncollectible amounts. Generally, no collateral is received from customers for our accounts receivable. Our policy is to write-off uncollectable amounts at the time it is determined that collection will not occur. During the three months ended January 31, 2012, one customer in the Display Technology Segment represented 100% of that segment's revenue and 99% of total net revenue. During the three months ended January 31, 2011, three customers in the Encryption Products and Services Segment represented 56%, 31% and 10%, respectively, of that segment's revenue and total net revenue.