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Obligations - Capital Leases (Details) - USD ($)
1 Months Ended 24 Months Ended 25 Months Ended 31 Months Ended
Jan. 31, 2017
Jan. 31, 2016
Dec. 31, 2015
Jul. 31, 2015
Dec. 31, 2014
Aug. 31, 2014
Jul. 31, 2014
May. 31, 2014
Nov. 30, 2017
Apr. 30, 2016
Jul. 31, 2017
Jan. 31, 2017
Apr. 03, 2016
Jan. 03, 2016
Debt Instrument [Line Items]                            
Capital lease outstanding                         $ 414,000 $ 489,000
Capital lease classified as current liability                         283,000 $ 281,000
Design Software | Capital Lease Obligation Leased December 2015                            
Debt Instrument [Line Items]                            
Imputed interest rate     4.88%                      
Periodic payments     $ 22,750                      
Capital lease outstanding                         153,000  
Capital lease classified as current liability                         86,000  
Capital lease term     2 years                      
Design Software | Capital Lease Obligation Leased December 2015 | Scenario, Forecast                            
Debt Instrument [Line Items]                            
Periodic payments                 $ 182,000          
Design Software | Capital Lease Obligation Leased July 2015                            
Debt Instrument [Line Items]                            
Imputed interest rate       4.91%                    
Periodic payments       $ 67,300                    
Capital lease outstanding                         125,000  
Capital lease classified as current liability                         61,000  
Capital lease term       3 years                    
Design Software | Capital Lease Obligation Leased July 2015 | Scenario, Forecast                            
Debt Instrument [Line Items]                            
Periodic payments                     $ 202,000      
Design Software | Capital Lease Obligation, Leased July 2014                            
Debt Instrument [Line Items]                            
Imputed interest rate             3.15%              
Periodic payments   $ 58,000     $ 16,000 $ 42,000                
Capital lease outstanding                         56,000  
Capital lease term             41 months              
Design Software | Capital Lease Obligation, Leased July 2014 | Scenario, Forecast                            
Debt Instrument [Line Items]                            
Periodic payments $ 58,000                     $ 174,000    
Design Software | Capital Lease Obligation, Leased May 2014                            
Debt Instrument [Line Items]                            
Imputed interest rate               4.80%            
Periodic payments               $ 84,000            
Capital lease outstanding                         $ 80,000  
Capital lease term               3 years            
Design Software | Capital Lease Obligation, Leased May 2014 | Subsequent Event                            
Debt Instrument [Line Items]                            
Periodic payments                   $ 252,000