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Obligations - Capital Leases (Details) - USD ($)
1 Months Ended 22 Months Ended 24 Months Ended 25 Months Ended 31 Months Ended
Jan. 31, 2017
Jan. 31, 2016
Jul. 31, 2015
Dec. 31, 2014
Aug. 31, 2014
Jul. 31, 2014
May. 31, 2014
Dec. 29, 2013
Sep. 30, 2015
Apr. 30, 2016
Jul. 31, 2017
Jan. 31, 2017
Sep. 27, 2015
Dec. 28, 2014
Debt Instrument [Line Items]                            
Capital lease outstanding                         $ 349,000 $ 416,000
Capital lease classified as current liability                         229,000 $ 225,000
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       $ 16,000 $ 42,000                  
Capital lease outstanding                         110,000  
Capital lease classified as current liability                         54,000  
Capital lease term           41 months                
Design Software | Capital Lease Obligation, Leased July 2014 | Scenario, Forecast                            
Debt Instrument [Line Items]                            
Periodic payments $ 58,000 $ 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 | Scenario, Forecast                            
Debt Instrument [Line Items]                            
Periodic payments                   $ 252,000        
Design Software | Capital Lease Obligation, Leased December 2013                            
Debt Instrument [Line Items]                            
Imputed interest rate               4.34%            
Periodic payments               $ 34,000            
Capital lease outstanding                         $ 34,000  
Capital lease term               2 years            
Design Software | Capital Lease Obligation, Leased December 2013 | Scenario, Forecast                            
Debt Instrument [Line Items]                            
Periodic payments                 $ 273,000