Segment Information (Detail) - Selected Financial Information for our Segments (USD $)	3 Months Ended		9 Months Ended
	Jul. 31, 2012	Jul. 31, 2011	Jul. 31, 2012	Jul. 31, 2011
Net revenue	$ 249,470	$ 450,360	$ 946,735	$ 554,233
Net income (loss)	(629,102)	(1,773,498)	(2,392,296)	(4,586,647)
Display Technology
Net revenue	246,670	426,000	940,010	426,000
Net income (loss)	(631,188)	(1,576,313)	(2,199,560)	(3,878,176)
Encryption Products and Services
Net revenue	2,800	24,360	6,725	128,233
Net income (loss)	$ 2,086	$ (197,185)	$ (192,736)	$ (708,471)