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Notes Payable (Details Narrative) - USD ($)
$ in Thousands
3 Months Ended
Jun. 01, 2016
Sep. 12, 2011
Mar. 31, 2010
Oct. 31, 2016
Oct. 31, 2015
Oct. 27, 2015
Aug. 12, 2015
Apr. 16, 2015
Feb. 02, 2015
Sep. 24, 2014
Feb. 22, 2013
May 30, 2012
Short-term Debt [Line Items]                        
Proceeds from unrelated third party       $ 125              
Frost Gamma Investment Trust [Member] | 2011 Promissory Notes [Member]                        
Short-term Debt [Line Items]                        
Beneficial ownership percentage   10.00%                    
Debt instrument face amount   $ 50                    
Debt instrument maturity date   Jul. 31, 2017                    
Debt instrument interest rate   11.00%                    
Proceeds from unrelated third party   $ 100                    
Frost Gamma Investment Trust [Member] | 2015 Promissory Note [Member]                        
Short-term Debt [Line Items]                        
Beneficial ownership percentage           10.00% 10.00% 10.00%        
Debt instrument face amount           $ 50 $ 25 $ 100        
Debt instrument interest rate           11.00% 11.00% 11.00%        
Frost Gamma Investment Trust [Member] | 2016 Promissory Note [Member]                        
Short-term Debt [Line Items]                        
Beneficial ownership percentage 10.00%                      
Debt instrument face amount $ 100                      
Debt instrument maturity date Jul. 31, 2017                      
Debt instrument interest rate 11.00%                      
Hsu Gamma Investments L P [Member] | 2012 Promissory Note [Member]                        
Short-term Debt [Line Items]                        
Debt instrument face amount                       $ 50
Debt instrument interest rate                       11.00%
Jane Hsiao [Member] | 2013 Promissory Note [Member]                        
Short-term Debt [Line Items]                        
Debt instrument face amount                     $ 50  
Debt instrument interest rate                     11.00%  
Jane Hsiao [Member] | 2014 Promissory Note [Member]                        
Short-term Debt [Line Items]                        
Debt instrument face amount                   $ 50    
Debt instrument interest rate                   11.00%    
Jane Hsiao [Member] | 2015 Promissory Note [Member]                        
Short-term Debt [Line Items]                        
Debt instrument face amount           $ 50     $ 50      
Debt instrument interest rate           11.00%     11.00%      
Hsu Gamma [Member] | 2016 Promissory Note [Member]                        
Short-term Debt [Line Items]                        
Debt instrument face amount $ 100                      
Debt instrument interest rate 11.00%                      
2010 Credit Facility [Member] | Frost Gamma and Hsu Gamma [Member]                        
Short-term Debt [Line Items]                        
Beneficial ownership percentage     10.00%                  
Debt instrument face amount     $ 1,000                  
Debt instrument maturity date     Jul. 31, 2017                  
Debt instrument interest rate     11.00%                  
2010 Credit Facility [Member] | Frost Gamma and Hsu Gamma [Member] | Maximum [Member]                        
Short-term Debt [Line Items]                        
Debt instrument interest rate     16.00%                  
Credit Facility [Member]                        
Short-term Debt [Line Items]                        
Line of credit facility outstanding       $ 1,000