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Equity (Details) - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Aug. 09, 2017
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2015
Dec. 31, 2012
Aug. 13, 2020
May 26, 2020
Aug. 13, 2019
Mar. 04, 2019
Aug. 08, 2018
Feb. 28, 2018
Aug. 13, 2017
Feb. 22, 2017
Dec. 31, 2007
Equity (Details) [Line Items]                              
Intrinsic value of options exercised   $ 765 $ 537 $ 617                      
Maximum percentage of distribution of dividend in each year. 75.00%                            
Dividend distributions of per share (in Dollars per share)             $ 0.175 $ 0.08 $ 0.156 $ 0.15 $ 0.155 $ 0.13 $ 0.13 $ 0.085  
Aggregate dividend value             $ 8,585 $ 3,918 $ 7,628 $ 7,335 $ 7,563 $ 5,785 $ 5,779 $ 3,775  
2007 Plan [Member]                              
Equity (Details) [Line Items]                              
Reserved ordinary shares for issuance (in Shares)                             1,500,000
Additional ordinary shares (in Shares)         250,000 1,000,000                  
Expiration period         10 years                    
Aggregate of ordinary shares for future grants (in Shares)   932,500                          
2007 Plan [Member] | Minimum [Member]                              
Equity (Details) [Line Items]                              
Options vest years   3 years                          
2007 Plan [Member] | Maximum [Member]                              
Equity (Details) [Line Items]                              
Options vest years   4 years