Summary of Significant Accounting Policies (Details Narrative)
 1 Months Ended 12 Months Ended
Dec. 23, 2015
USD ($)
$ / shares
shares
Sep. 29, 2015
USD ($)
$ / shares
shares
Jul. 24, 2015
USD ($)
shares
May. 18, 2015
USD ($)
$ / shares
shares
May. 18, 2015
$ / shares
shares
Aug. 29, 2014
USD ($)
Mar. 21, 2014
shares
Nov. 12, 2013
USD ($)
Sep. 30, 2015
USD ($)
$ / shares
shares
Dec. 31, 2015
USD ($)
Customers
$ / shares
shares
Dec. 31, 2014
USD ($)
Customers
$ / shares
shares
Nov. 10, 2014
$ / shares
Jan. 07, 2014
$ / shares
Warrants exercised to purchase of common stock | shares             7,140,823       36,570    
Exercise price per share | $ / shares                   $ 0.57 $ 0.33 $ 0.60 $ 0.30
Proceeds from warrant exercises                   $ 2,451,000 $ 15,000    
Common stock, shares issued | shares                   48,580,355 30,391,513    
Allowance for doubtful accounts receivable                   $ 15,000 $ 1,000    
Sales returns and allowances                   0 0    
Allowance for doubtful accounts receivable, write-offs                   0 0    
Deferred revenue                   417,000 487,000    
Licenses revenue                   154,000 834,000    
Shipping, handling and transportation costs                   12,000 4,000    
Other nonoperating income expense                   $ 37,000 $ 58,000    
Sales Revenue Goods Net [Member]                          
Concentration risk, percentage                   64.00% 78.00%    
Number of major customers | Customers                   4 3    
Accounts Receivable [Member]                          
Concentration risk, percentage                   71.00% 83.00%    
Number of major customers | Customers                   3 3    
Private Placement [Member]                          
Proceeds from warrants       $ 1,230,000                  
Warrants exercised to purchase of common stock | shares       1,834,299 1,834,299                
Exercise price per share | $ / shares       $ 0.85 $ 0.85                
Shares issued, price per share | $ / shares       $ 0.67 $ 0.67                
Number of warrants issued during the period | shares       917,149 917,149                
Warrant [Member]                          
Proceeds from warrants $ 688,000                        
Warrants exercised to purchase of common stock | shares 3,442,521                        
Exercise price per share | $ / shares $ 0.20 $ 0.15                      
Proceeds from warrant exercises $ 688,000                        
Common stock, shares issued | shares 3,442,521                        
Share price | $ / shares   $ 0.15                      
Stock issued during period, shares, other | shares                   11,742,100      
Lambda Investors LLC [Member]                          
Common stock, shares issued | shares 2,782,577                        
Share price | $ / shares $ 0.40                        
Amortization of debt issuance costs           $ 178,000              
Lambda Investors LLC [Member] | Senior Secured Debt [Member]                          
Amortization of debt issuance costs               $ 142,000          
Lambda Investors LLC [Member] | Warrant [Member]                          
Proceeds from warrant exercises   $ 1,760,000                      
Stock issued during period, shares, other | shares   11,742,100                      
Lincoln Park Capital Fund LLC [Member]                          
Proceeds from warrants                 $ 135,000        
Warrants exercised to purchase of common stock | shares                 300,000        
Proceeds from warrant exercises     $ 10,000,000                    
Share price | $ / shares                 $ 0.45        
Stock issued during period, shares, other | shares     250,000                    
Bellco [Member]                          
Licenses revenue                   $ 2,659,000      
Royalty income                   84,000      
License Agreement with Bellco [Member]                          
Licenses revenue                   $ 70,000