Quarterly report pursuant to Section 13 or 15(d)

Convertible Unsecured Notes (Details Textual)

v3.8.0.1
Convertible Unsecured Notes (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Dec. 01, 2016
Nov. 01, 2016
Sep. 01, 2016
Aug. 24, 2016
Dec. 31, 2015
Dec. 30, 2015
Nov. 02, 2015
May 07, 2015
May 01, 2015
Apr. 23, 2015
Dec. 15, 2014
Dec. 01, 2014
Apr. 27, 2017
Jan. 30, 2017
Dec. 31, 2016
Mar. 31, 2016
Feb. 02, 2016
Nov. 26, 2014
Sep. 22, 2014
Mar. 31, 2017
Sep. 30, 2017
Dec. 31, 2016
Convertible Unsecured Notes (Textual)                                            
Purchase of warrants                           250,000                
Ownership percentage                         4.99%                  
Warrants valued using Black-Scholes Option pricing model                                       $ 73,000    
Debt discount                                         $ 53,000  
Warrant exercise price                                         $ 3.51  
Issuance of warrants                                       62,500    
Warrant 1 [Member]                                            
Convertible Unsecured Notes (Textual)                                            
Exercise price per share $ 3.00 $ 3.00 $ 4.00   $ 5.00 $ 12.50 $ 15.00 $ 12.50 $ 12.50 $ 12.50 $ 25.00 $ 39.00   $ 3.00   $ 5.00 $ 12.50 $ 25.00 $ 25.00     $ 3.00
Warrants valued using Black-Scholes Option pricing model     $ 271,000       $ 246,000 $ 2,139,000 $ 56,000 $ 2,139,000   $ 246,000       $ 1,497,000 $ 148,000          
Adjustment to fair value                                   $ 43,000 $ 296,000      
Warrant [Member]                                            
Convertible Unsecured Notes (Textual)                                            
Purchase of warrants 62,500 62,500                       62,500 62,500              
Exercise price per share                         $ 3.00                  
Warrant exercise price                             $ 3.77           $ 3.51 $ 3.77
Minimum [Member] | Warrant [Member]                                            
Convertible Unsecured Notes (Textual)                                            
Exercise price per share       $ 4.00                                    
Maximum [Member] | Warrant [Member]                                            
Convertible Unsecured Notes (Textual)                                            
Exercise price per share       $ 12.50                                    
Unsecured Debt [Member] | Minimum [Member]                                            
Convertible Unsecured Notes (Textual)                                            
Debt discount                             $ 305,000             $ 305,000
Fair value of additional issuance to warrants                                           $ 30,000
Warrant exercise price                             $ 3.00             $ 3.00
Unsecured Debt [Member] | Maximum [Member]                                            
Convertible Unsecured Notes (Textual)                                            
Debt discount                             $ 335,000             $ 335,000
Fair value of additional issuance to warrants                                           $ 305,000
Warrant exercise price                             $ 3.00             $ 3.00
Securities Purchase Agreement [Member]                                            
Convertible Unsecured Notes (Textual)                                            
Warrants exercisable term     5 years                                      
Purchase of warrants     124,999                                      
Exercise price per share     $ 4.00                                      
Convertible unsecured notes     $ 1,250,000                                      
Transaction expenses and consisting of legal costs     45,000                                      
Net proceeds     $ 1,205,000                                      
Convertible unsecured notes bear interest rate     12.00%                                      
Unsecured notes maturity date     Sep. 01, 2017                                      
Unsecured notes conversion, description                                         The Convertible Unsecured Notes are subordinate to the Senior Notes described in Note 8. The Convertible Unsecured Notes were initially convertible at the option of the holder into common stock at a conversion price of $4.31 per share and will automatically convert into shares of common stock in the event of a conversion of at least 50% of the then outstanding (i) principal, (ii) accrued and unpaid interest with respect to such principal and (iii) accrued and unpaid late charges, if any, with respect to such principal and interest, under the Senior Notes. In connection with the issuance of the 2016 Senior Notes and amendment and restatement of the 2015 Senior Notes, the conversion price was reduced to $2.50 per share.  
Ownership percentage                                         9.99%  
Unpaid interest rate on notes                                         100.00%  
Debt discount     $ 553,000                                      
Securities Purchase Agreement One [Member]                                            
Convertible Unsecured Notes (Textual)                                            
Warrants exercisable term                                         5 years  
Purchase of warrants                                         62,500  
Exercise price per share                                         $ 4.00  
Gross proceeds from issuance of warrants                                         $ 3,000,000