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Debt - Additional Information (Detail) - USD ($)
12 Months Ended
Sep. 29, 2017
Aug. 24, 2017
Aug. 23, 2017
Aug. 22, 2017
Aug. 21, 2017
Jun. 30, 2017
Mar. 31, 2017
Feb. 08, 2017
Feb. 07, 2017
Sep. 06, 2016
Dec. 31, 2017
Dec. 31, 2016
Sep. 30, 2017
Sep. 02, 2016
Debt Instrument [Line Items]                            
Aggregate principal amount                         $ 2,800,000  
Proceeds from short term secured borrowing arrangement                     $ 1,200,000 $ 1,903,000    
Loss on related party debt extinguishment                     (405,000)      
Long-term debt, net, carrying amount                     3,800,000 2,600,000    
Debt issuance costs                     100,000 200,000    
Debt discount                     400,000 $ 1,200,000    
Short-term Related Party Loan Extinguishment [Member]                            
Debt Instrument [Line Items]                            
Fair value of equity interest exchanged                     800,000      
Reduction in fair value due to allocation of legal fees and other direct issuance costs                     100,000      
Loss on related party debt extinguishment                     100,000      
Long-term Related Party Loan Extinguishment [Member]                            
Debt Instrument [Line Items]                            
Reduction in fair value due to allocation of legal fees and other direct issuance costs                     100,000      
Loss on related party debt extinguishment                     400,000      
Fair value of equity interest transferred                     2,000,000      
Long-term debt, net, carrying amount                     1,500,000      
Debt issuance costs                     100,000      
Debt discount                     $ 400,000      
Series B 10% Convertible Preferred Stock [Member]                            
Debt Instrument [Line Items]                            
Preferred stock, dividend rate 10.00%                          
William W. and Dieva L. Smith [Member] | Short-term Indebtedness [Member] | Series B 10% Convertible Preferred Stock [Member]                            
Debt Instrument [Line Items]                            
Aggregate principal amount $ 800,000                          
Preferred stock, shares issued upon convertible debt 750                          
William W. and Dieva L. Smith [Member] | Long-term Indebtedness [Member] | Series B 10% Convertible Preferred Stock [Member]                            
Debt Instrument [Line Items]                            
Aggregate principal amount $ 2,000,000                          
Preferred stock, shares issued upon convertible debt 2,000                          
William W. and Dieva L. Smith [Member] | Secured Promissory Note [Member]                            
Debt Instrument [Line Items]                            
Proceeds from short term secured borrowing arrangement                 $ 1,000,000          
Interest rate per annum                 18.00%          
Notes due date                     Mar. 24, 2017      
Debt instrument extended maturity date                     Jun. 26, 2017      
William W. and Dieva L. Smith [Member] | Secured Promissory Note [Member] | New Short-term Secured Borrowing Arrangement [Member]                            
Debt Instrument [Line Items]                            
Interest rate per annum     12.00%     12.00%                
Notes due date     Jan. 25, 2018 Jan. 25, 2018 Sep. 25, 2017           Sep. 25, 2017      
Aggregate principal amount           $ 1,000,000                
Notes due date, description                     The maturity date of the Replacement Note entered into with Smith may be extended by up to 180 days upon the mutual consent of the Company and Smith. Each of the Replacement Notes are secured by the Company’s accounts receivable and certain other assets.      
Proceeds from short term secured borrowing arrangement     $ 800,000                      
Steven L. and Monique P. Elfman [Member] | Secured Promissory Note [Member]                            
Debt Instrument [Line Items]                            
Proceeds from short term secured borrowing arrangement               $ 1,000,000            
Interest rate per annum           12.00%   18.00%            
Notes due date           Sep. 25, 2017   Mar. 24, 2017     Mar. 24, 2017      
Debt instrument extended maturity date           Feb. 11, 2018 Jun. 23, 2017              
Proceeds from short term secured borrowing arrangement           $ 1,000,000   $ 1,000,000            
Steven L. and Monique P. Elfman [Member] | Secured Promissory Note [Member] | New Short-term Secured Borrowing Arrangement Matured on June 23, 2017 [Member]                            
Debt Instrument [Line Items]                            
Proceeds from short term secured borrowing arrangement             $ 1,000,000              
Notes due date                     Jun. 23, 2017      
Steven L. and Monique P. Elfman [Member] | Secured Promissory Note [Member] | New Short-term Secured Borrowing Arrangement [Member]                            
Debt Instrument [Line Items]                            
Interest rate per annum           12.00%                
Notes due date       Jan. 25, 2018 Sep. 25, 2017           Sep. 25, 2017      
Aggregate principal amount           $ 1,000,000                
Andrew Arno [Member] | Short-term Indebtedness [Member] | Series B 10% Convertible Preferred Stock [Member]                            
Debt Instrument [Line Items]                            
Aggregate principal amount $ 100,000                          
Preferred stock, shares issued upon convertible debt 50                          
Andrew Arno [Member] | Secured Promissory Note [Member] | New Short-term Secured Borrowing Arrangement [Member]                            
Debt Instrument [Line Items]                            
Interest rate per annum   12.00%                        
Notes due date   Jan. 31, 2018                        
Aggregate principal amount   $ 300,000                        
Proceeds from short term secured borrowing arrangement   $ 300,000                        
Unterberg Koller Capital Fund L.P. and William W. and Dieva L. Smith [Member] | Note and Warrant Purchase Agreement [Member] | Senior Subordinated Notes [Member]                            
Debt Instrument [Line Items]                            
Interest rate per annum                   10.00%        
Notes due date                   Sep. 06, 2019        
Aggregate principal amount                           $ 4,000,000
Notes maturity period                   3 years