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Financing Obligations - Capital Leases (Details) - USD ($)
$ in Thousands
1 Months Ended 24 Months Ended 25 Months Ended
Jul. 31, 2018
Dec. 31, 2017
May 31, 2017
Feb. 28, 2017
Dec. 31, 2015
Aug. 02, 2015
Nov. 30, 2019
Nov. 30, 2017
Jul. 31, 2020
Dec. 31, 2019
May 31, 2019
Feb. 28, 2019
Jul. 30, 2017
Sep. 30, 2018
Debt Instrument [Line Items]                            
Capital lease outstanding   $ 654                       $ 502
Capital lease classified as current liability   $ 299                       360
Design Software | Capital lease obligation, leased July 2018                            
Debt Instrument [Line Items]                            
Imputed interest rate 7.64%                          
Periodic payments $ 64                          
Capital lease outstanding                           115
Capital lease classified as current liability                           56
Capital lease term 3 years                          
Design Software | Capital lease obligation, leased December 2017, one                            
Debt Instrument [Line Items]                            
Imputed interest rate   6.48%                        
Periodic payments   $ 52                        
Capital lease outstanding                           95
Capital lease classified as current liability                           46
Capital lease term   3 years                        
Design Software | Capital lease obligation, leased December 2017, two                            
Debt Instrument [Line Items]                            
Imputed interest rate   6.30%                        
Periodic payments   $ 34                        
Capital lease outstanding                           163
Capital lease classified as current liability                           129
Capital lease term   2 years                        
Design Software | Capital lease obligation, leased May 2017                            
Debt Instrument [Line Items]                            
Imputed interest rate     5.48%                      
Periodic payments     $ 92                      
Capital lease outstanding                           87
Capital lease term     3 years                      
Design Software | Capital lease obligation, leased February 2017                            
Debt Instrument [Line Items]                            
Imputed interest rate       5.57%                    
Periodic payments       $ 44                    
Capital lease outstanding                           42
Capital lease classified as current liability                           $ 42
Capital lease term       3 years                    
Design Software | Capital lease obligation, leased December 2015                            
Debt Instrument [Line Items]                            
Imputed interest rate         4.88%                  
Periodic payments         $ 23     $ 182            
Capital lease term         2 years                  
Design Software | Capital lease obligation, leased July 2015                            
Debt Instrument [Line Items]                            
Imputed interest rate           4.91%                
Periodic payments           $ 67             $ 202  
Capital lease term           3 years                
Scenario, forecast | Design Software | Capital lease obligation, leased July 2018                            
Debt Instrument [Line Items]                            
Periodic payments                 $ 191          
Scenario, forecast | Design Software | Capital lease obligation, leased December 2017, one                            
Debt Instrument [Line Items]                            
Periodic payments                   $ 156        
Scenario, forecast | Design Software | Capital lease obligation, leased December 2017, two                            
Debt Instrument [Line Items]                            
Periodic payments             $ 273              
Scenario, forecast | Design Software | Capital lease obligation, leased May 2017                            
Debt Instrument [Line Items]                            
Periodic payments                     $ 276      
Scenario, forecast | Design Software | Capital lease obligation, leased February 2017                            
Debt Instrument [Line Items]                            
Periodic payments                       $ 133