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Obligations (Narrative) (Details)
1 Months Ended 6 Months Ended
Jan. 31, 2017
USD ($)
Jan. 31, 2016
USD ($)
Dec. 31, 2014
USD ($)
Aug. 31, 2014
USD ($)
Jul. 31, 2014
May. 31, 2014
USD ($)
Dec. 29, 2013
USD ($)
Jun. 28, 2015
USD ($)
Apr. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Dec. 28, 2014
USD ($)
Debt and Capital Lease Obligations [Line Items]                      
Revolving line of credit               $ 1,000,000     $ 1,000,000
Capital lease obligations               258,000     416,000
Current portion of capital lease obligations               202,000     $ 225,000
Capital Lease Obligation, Leased July 2014 [Member] | Software                      
Debt and Capital Lease Obligations [Line Items]                      
Capital lease, term         41 months            
Capital lease, implied interest rate         3.15%            
Capital lease obligations               111,000      
Current portion of capital lease obligations               55,000      
July lease payment one | Software                      
Debt and Capital Lease Obligations [Line Items]                      
Capital lease, periodic payment       $ 42,000              
July lease payment two | Software                      
Debt and Capital Lease Obligations [Line Items]                      
Capital lease, periodic payment     $ 16,000                
Capital lease obligation, leased may 2014 | Software                      
Debt and Capital Lease Obligations [Line Items]                      
Capital lease, term           3 years          
Capital lease, implied interest rate           4.80%          
Capital lease, periodic payment           $ 84,000          
Capital lease obligations               80,000      
Capital lease obligation, leased december 2013 | Software                      
Debt and Capital Lease Obligations [Line Items]                      
Capital lease, term             2 years        
Capital lease, implied interest rate             4.34%        
Capital lease, periodic payment             $ 34,000        
Capital lease obligations               67,000      
Revolving credit facility | Silicon valley bank                      
Debt and Capital Lease Obligations [Line Items]                      
Maximum borrowing capacity               6,000,000      
Revolving line of credit               $ 1,000,000      
Interest rate               3.06%      
Minimum net worth required for compliance with covenants               $ 15,000,000      
Minimum adjusted quick ratio required for compliance with covenants               2      
Minimum cash balance required for compliance with covenants               $ 8,000,000      
Scenario, forecast | Capital Lease Obligation, Leased July 2014 [Member] | Software                      
Debt and Capital Lease Obligations [Line Items]                      
Capital lease, periodic payment $ 174,000                    
Scenario, forecast | July lease payment three | Software                      
Debt and Capital Lease Obligations [Line Items]                      
Capital lease, periodic payment   $ 58,000                  
Scenario, forecast | July lease payment four | Software                      
Debt and Capital Lease Obligations [Line Items]                      
Capital lease, periodic payment $ 58,000                    
Scenario, forecast | Capital lease obligation, leased may 2014 | Software                      
Debt and Capital Lease Obligations [Line Items]                      
Capital lease obligations                 $ 252,000    
Scenario, forecast | Capital lease obligation, leased december 2013 | Software                      
Debt and Capital Lease Obligations [Line Items]                      
Capital lease obligations                   $ 273,000