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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
Nov. 30, 2017
Jul. 31, 2017
Jan. 31, 2017
Jul. 03, 2016
Jan. 03, 2016
Debt Instrument [Line Items]                        
Capital lease outstanding                     $ 251,000 $ 489,000
Capital lease classified as current liability                     142,000 $ 281,000
Design Software | Capital lease obligation, leased December 2015                        
Debt Instrument [Line Items]                        
Capital lease term     2 years                  
Imputed interest rate     4.88%                  
Periodic payments     $ 22,750                  
Capital lease outstanding                     131,000  
Capital lease classified as current liability                     86,000  
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]                        
Capital lease term       3 years                
Imputed interest rate       4.91%                
Periodic payments       $ 67,300                
Capital lease outstanding                     64,000  
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]                        
Capital lease term             41 months          
Imputed interest rate             3.15%          
Periodic payments   $ 58,000     $ 16,000 $ 42,000            
Capital lease outstanding                     $ 56,000  
Design Software | Capital lease obligation, leased July 2014 | Scenario, forecast                        
Debt Instrument [Line Items]                        
Periodic payments $ 58,000                 $ 174,000