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Shareholders' Equity (Details Narrative) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 3 Months Ended 6 Months Ended
Jan. 05, 2018
Dec. 21, 2016
May 31, 2018
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Dec. 31, 2017
Feb. 29, 2016
Preferred shares authorized       100,000   100,000   100,000  
Preferred shares, par value       $ 0.01   $ 0.01   $ 0.01  
Liquidation preference       $ 2,685   $ 2,685   $ 2,527  
Common stock, par value       $ 0.01   $ 0.01   $ 0.01  
Common stock acquisition percentage       16.86%   16.86%      
Proceeds from issuance of common stock           $ 1,150    
Number of share issued           930,857      
Net share price       $ 1.37   $ 1.37      
Warrant liability       $ 1,010   $ 1,010   $ 1,200  
Compensation expenses             100    
Unrecognized share based compensation       $ 100   $ 100      
Number of shares available for future grants       666,467   666,467      
Stock-based compensation       $ 596 $ 106 $ 610 $ 212    
Common Stock Sales Agreement [Member]                  
Proceeds from issuance of common stock $ 2,500                
Employees [Member]                  
Number of common stock granted     485,168            
Stock-based compensation     $ 600            
Registered Direct Offering [Member]                  
Number of share issued   1,000,000              
Net share price   $ 1.50              
Net proceeds from offering   $ 1,320              
Common Stock [Member]                  
Proceeds from issuance of common stock       $ 300          
Number of share issued       290,694          
Net share price       $ 1.17   $ 1.17      
Common Stock [Member] | Registered Direct Offering [Member]                  
Net proceeds from offering   $ 800              
Warrant [Member]                  
Net share price   $ 1.28   $ 1.32   $ 1.32      
Warrant [Member] | Registered Direct Offering [Member]                  
Number of warrant called   1,000,000              
Warrant exercise price   $ 2.05              
Warrant term   5 years              
Net proceeds from offering   $ 1,240              
Series P Preferred Stock [Member]                  
Preferred shares authorized       50,000   50,000      
Series A Convertible Preferred Stock [Member]                  
Preferred shares authorized       50,000   50,000     50,000
Number of shares designated           50,000      
Preferred stock, dividend rate           12.25%      
Liquidation preference per share       $ 40   $ 40      
Liquidation preference       $ 2   $ 2      
Number of shares converted           13.33      
Common stock, par value       $ 0.01   $ 0.01      
Preferred stock issued upon conversion       666,667   666,667      
Minimum [Member] | Series A Convertible Preferred Stock [Member]                  
Number of common Stock issued upon conversion           793,349      
Reduced Original Warrant Agreement [Member]                  
Warrant exercise price       $ 1.13   $ 1.13