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Stockholders' Equity (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 12 Months Ended
Nov. 02, 2016
Jun. 16, 2016
Jun. 03, 2016
Apr. 30, 2015
Sep. 30, 2014
Aug. 30, 2014
Jun. 30, 2010
Sep. 30, 2004
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2013
Dec. 31, 2009
Common stock at purchase price per share $ 6.64                      
Sale of stock common, shares 412,071                      
Proceeds from offering expenses $ 2,700                      
Reverse stock split   On June 16, 2016 (the “Effective Date”), the Company filed with the Secretary of State of Delaware the amendment to its restated certificate of incorporation to effect the reverse/forward split. The 1-100 reverse split was effective at 6:00 p.m. Eastern Time on the Effective Date and the 2-for-1 forward split was effective at 6:01 p.m. Eastern Time on the Effective Date. At the Company’s annual meeting of stockholders held on June 3, 2016, the Company’s stockholders approved an amendment to the Company’s restated certificate of incorporation to give effect to, first, a reverse split of the Company’s outstanding common stock at an exchange ratio of 1-for-100 and, then, immediately following such reverse split, a forward split of its outstanding common stock at a ratio that is not less than 2-for-1 nor greater than 4-for-1, with the final ratio to be selected by the Company’s board of directors in its sole discretion. The board of directors set the final ratio of the forward split at 2-for-1. The Company refers to the reverse split and to the forward split, together, as the “reverse/forward split.”           As of immediately prior to the reverse split/forward split on the Effective Date, the Company had 92,439,174 of common stock outstanding, and subsequent to the reverse/forward split, it had 1,848,597 shares of common stock outstanding. Approximately $3,000 was paid to cashed-out stockholders who owned less than 100 shares immediately prior to the reverse split on the Effective Date.      
Fractional share cash for each such share held price per share   $ 0.12                    
Common stock, shares outstanding   92,439,174             2,261,000 1,849,000    
Paid to cashed out stockholders                 $ 3      
Number of shares owned by stockholders                 100,000      
Common stock par value                 $ 0.005 $ 0.005    
Option issued to purchase number of additional common stock                   2,000    
Stock-based compensation                 $ 419 $ 456    
Closing stock price per share                 $ 8.50      
Aggregate intrinsic value of options exercised                 $ 7      
Number of common stock issued during period                 18,000 360    
Option exercised during period, value                 $ 1    
Number of option exercised during period                 43    
Weighted average grant-date fair value per share price                 $ 6.48 $ 12.74    
Unamortized compensation expense                 $ 647      
Unamortized compensation expense remaining service period                 2 years 1 month 2 days      
Preferred Stock authorized                 5,000,000 5,000,000    
Preferred stock shares issued                 156,000 156,000    
Preferred Stock, shares outstanding                 156,000 156,000    
Payment of dividend                 $ 16      
Common stock shares issued                 2,261,000 1,849,000    
Preferred Stock, Liquidation Preference Per Share                 $ 156 $ 156    
Preferred Stock                        
Preferred Stock authorized                 10,000,000      
Series A Cumulative Convertible Preferred Stock [Member]                        
Option exercised during period, value                      
Preferred Stock authorized                 5,000,000      
Preferred stock shares issued                 156,000 156,000    
Preferred Stock, shares outstanding                 156,000 156,000    
Dividends payable per share                 $ 0.10 $ 0.10    
Common Stock [Member]                        
Option exercised during period, value                      
Common stock shares issued                   1,000    
Preferred Stock, Liquidation Preference Per Share                 $ 1.00      
Warrants [Member]                        
Warrants issued to purchase number of common stock                     72,000 60,000
Fair value of the warrants                     $ 1,379 $ 537
Risk-free interest rates                     1.06% 2.79%
Dividend yield                     0.00% 0.00%
Expected volatility                     80.25% 78.10%
Term of weighted-average assumptions                     5 years 8 years
2004 Performance Incentive Plan [Member]                        
Maximum number of shares authorized to issue               50,000        
Options outstanding                 1,000      
2010 Amended Performance Incentive Plan [Member]                        
Maximum number of shares authorized to issue             120,000          
Options outstanding                 79,000      
Incentive plan expiry description             The Amended 2010 Plan expires in February 2020.          
2010 Amended Performance Incentive Plan [Member] | Minimum [Member]                        
Maximum number of shares authorized to issue             120,000          
2010 Amended Performance Incentive Plan [Member] | Maximum [Member]                        
Maximum number of shares authorized to issue             240,000          
2014 Inducement Plan [Member]                        
Maximum number of shares authorized to issue           85,000            
Incentive plan expiry description           The 2014 Plan expires in September 2024.            
2014 Inducement Plan [Member] | Mr Krishnan [Member]                        
Option issued to purchase number of additional common stock       15,000 70,000              
2014 Inducement Plan [Member] | First Anniversary [Member]                        
Option expected to vest during period, percentage       25.00%                
2014 Inducement Plan [Member] | 36 Substantially Equal Monthly Installments Thereafter [Member]                        
Option expected to vest during period, percentage       75.00%