Quarterly report pursuant to Section 13 or 15(d)

Debt (Details Narrative)

v3.8.0.1
Debt (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
9 Months Ended
Apr. 28, 2016
Apr. 18, 2016
Apr. 04, 2016
Sep. 08, 2015
Jun. 30, 2014
Sep. 30, 2016
Jul. 31, 2016
May 06, 2016
Apr. 02, 2016
Dec. 31, 2015
Aug. 31, 2014
Debt principal amount           $ 8,981       $ 17,814  
Debt beneficial conversion feature           2,500          
Derivative Liability           $ 5,822          
Number of shares issued           2,200,208       907,187  
Exchange Agreement [Member]                      
Debt maturity date           Apr. 03, 2018          
Percentage of loan bear interest rate           6.00%          
Debt principal balance           $ 300          
Debt instrument conversion price           $ 16.08          
Hercules Term Loan [Member]                      
Debt principal amount           $ 8,981       $ 17,051  
Term loan fee amount         $ 200            
Final payment fee for debt         $ 1,700            
Percentage of loan bear interest rate           12.70%          
Term loan, payment terms           Principal payments commenced August 1, 2015 and are currently being made in equal monthly installments of approximately $500,000, with the remainder due at maturity.          
Debt instrument, periodic payment, principal           $ 500          
Hercules Term Loan [Member] | Prime Rate [Member]                      
Percentage of loan bear interest rate         9.20% 12.50%          
Riverside Merchant Partners, LLC [Member]                      
Debt principal amount           $ 3,000          
Subordinated convertible promissory notes           3,000          
Riverside Merchant Partners, LLC [Member] | Hercules and Riverside Debt Assignment [Member]                      
Debt principal amount   $ 1,000 $ 1,000                
Debt additional principal   1,000 2,000                
Magna Note [Member]                      
Debt principal amount                 $ 763  
Magna Note [Member] | Securities Purchase Agreement [Member]                      
Debt principal amount           $ 763 $ 888       $ 3,500
Debt maturity date           Aug. 11, 2016          
Percentage of loan bear interest rate           6.00%          
Riverside Debt [Member]                      
Derivative Liability               $ 199      
Number of shares issued               11,667      
First Amendment to Loan and Security Agreement [Member] | Hercules Term Loan [Member]                      
Debt principal amount       $ 1,000   $ 3,500          
Debt instrument, covenant description       The Amendment modified the liquidity covenant to reduce the minimum cash balance required by $500,000 for every $1.0 million paid in principal to a minimum of $2.5 million. The minimum cash and cash equivalents balance required to maintain compliance with the minimum liquidity covenant at September 30, 2016 was $3.5 million.              
Debt principal balance       $ 2,500              
First Amendment to Loan and Security Agreement [Member] | Hercules Term Loan [Member] | Minimum [Member]                      
Debt principal amount       $ 500              
Exchange Agreement [Member] | First, Second and Third Exchange Agreement [Member]                      
Debt principal balance             $ 840        
Exchange Agreement [Member] | Hercules and Riverside Debt Assignment [Member]                      
Debt principal amount     2,000                
Debt additional principal     $ 2,000                
Warrant to purchase shares of common stock     8,333                
Number of shares issued     12,500                
Number of shares reduced     11,667                
Exchange Agreement [Member] | Hercules Term Loan [Member]                      
Financing costs $ 267                    
Debt conversion original debt amount 244                    
Exchange Agreement [Member] | First, Second and Third Exchange Agreement [Member]                      
Debt instrument converted shares           145,227          
Exchange Agreement [Member] | Riverside Debt [Member]                      
Debt principal amount     $ 1,000           $ 1,000    
Debt additional principal     $ 1,000                
Debt instrument conversion price     $ 17.16                
Common stock closing price per share     $ 19.56                
Debt Instrument premium amount     $ 246                
Fair Value of Warrants     $ 106                
Exchange Agreement [Member] | Riverside Debt [Member] | Warrant [Member]                      
Warrant to purchase shares of common stock     8,333                
Warrant exercise price per share     $ 19.56                
Exchange Agreement [Member] | Riverside Debt [Member] | Hercules Term Loan [Member]                      
Debt principal amount 1,000 1,000                  
Debt additional principal $ 1,000 $ 1,000                  
Warrant to purchase shares of common stock 8,333                    
Warrant exercise price per share $ 19.92                    
Common stock closing price per share $ 19.92 $ 24.24                  
Debt Instrument premium amount $ 268                    
Debt beneficial conversion feature   $ 413                  
Fair Value of Warrants   $ 107                  
Hercules Technology Capital, Inc. [Member] | Loan and Security Agreement [Member]                      
Debt principal amount         $ 20,000            
Debt maturity date         Jan. 01, 2018            
Hercules Term Loan [Member] | Riverside Merchant Partners, LLC [Member]                      
Debt principal amount           $ 3,000