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Description of Business - Additional Information (Detail)
1 Months Ended
Jul. 29, 2014
USD ($)
$ / shares
May. 22, 2014
USD ($)
Patent
Feb. 28, 2014
USD ($)
Patent
Jan. 31, 2013
USD ($)
Jul. 31, 2000
USD ($)
Oct. 31, 2015
a
Employee
Oct. 10, 2014
USD ($)
Mar. 07, 2013
$ / shares
Entity Information [Line Items]                
Sale of shared facilities and assets, value       $ 18,750,000        
Common stock, par value | $ / shares               $ 0.001
Number of employees | Employee           1    
Liquidating cash distribution, per share | $ / shares $ 0.24              
Liquidating distribution $ 6,930,000              
Tejas                
Entity Information [Line Items]                
Payment to acquire business         $ 2,200,000      
Business acquisition, approximate ownership percentage acquired         5.00%      
Tyngsborough Massachusetts                
Entity Information [Line Items]                
Sale of facilities and assets, value             $ 2,500,000  
Maximum amount other payable on breaches of such representations and warranties or obligations             $ 75,000  
Tyngsborough Massachusetts | Termination of Restated Purchase and Sale Agreement with Tyngsborough Commons, LLC                
Entity Information [Line Items]                
Ownership of land | a           102    
IBM Patents                
Entity Information [Line Items]                
Patent sale agreement, number of patents | Patent     40          
Patent sale agreement, number of patent applications | Patent     2          
Amount received from sale of patents     $ 2,000,000          
IQstream Patents                
Entity Information [Line Items]                
Patent sale agreement, number of patents | Patent   3            
Patent sale agreement, number of patent applications | Patent   6            
Amount received from sale of patents   $ 300,000