Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Share-Based Payment Transactions (Details Textual)

v3.19.1
Share-Based Payment Transactions (Details Textual)
$ / shares in Units, $ in Thousands
 1 Months Ended 12 Months Ended
May 31, 2017
$ / shares
shares
Mar. 31, 2017
Number / Employees
$ / shares
shares
May 31, 2016
shares
May 26, 2016
USD ($)
$ / shares
shares
Feb. 29, 2016
Number / Employees
Number / SeniorOfficer
$ / shares
shares
Dec. 31, 2018
USD ($)
Dec. 31, 2017
$ / shares
Dec. 31, 2017
USD ($)
$ / shares
shares
Dec. 31, 2016
USD ($)
$ / shares
Dec. 31, 2016
USD ($)
Share-Based Payment Transactions (Textual)                    
Granted amount of options exercisable to ordinary shares 60,000 210,000 74,000 20,000 160,000          
Exercise price of per shares | $ / shares $ 0.90 $ 3.662   $ 1.43 $ 1.15   $ 0.07   $ 8.32  
Grant period 48 months 48 months   4 years 4 years          
Number of employees | Number / Employees   3     3          
Number of senior officer | Number / SeniorOfficer         1          
Issuance of ordinary shares     37,000 20,000            
Issuance of addition ordinary shares     37,000              
Share based payment expenses | $           $ 535   $ 192 $ 322 $ 309
weighted average remaining contractual life             8 years 4 months 17 days   8 years 10 months 10 days  
Directors [Member]                    
Share-Based Payment Transactions (Textual)                    
Granted amount of options exercisable to ordinary shares       74,000            
Issuance of ordinary shares       37,000            
Issuance of addition ordinary shares       37,000            
Share based payment expenses | $       $ 74            
Directors [Member] | Top of Range [Member]                    
Share-Based Payment Transactions (Textual)                    
Exercise price of per shares | $ / shares               $ 0.78    
Directors [Member] | Bottom of range [Member]                    
Share-Based Payment Transactions (Textual)                    
Exercise price of per shares | $ / shares               $ 0.67    
NIS [Member]                    
Share-Based Payment Transactions (Textual)                    
Exercise price of per shares | $ / shares $ 3.393     $ 5.376 $ 4.317          
NIS [Member] | Employees and Directors [Member] | Top of Range [Member]                    
Share-Based Payment Transactions (Textual)                    
Granted amount of options exercisable to ordinary shares               460,000    
Exercise price of per shares | $ / shares               $ 2.926    
Grant period               48 months    
NIS [Member] | Employees and Directors [Member] | Bottom of range [Member]                    
Share-Based Payment Transactions (Textual)                    
Granted amount of options exercisable to ordinary shares               240,000    
Exercise price of per shares | $ / shares               $ 2.513    
Grant period               48 months