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Share Based Compensation (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 6 Months Ended
Apr. 30, 2017
Jun. 30, 2017
Share Based Compensation (Textual)    
Shares available for grants of awards  
Total intrinsic value   $ 380
Option exercised shares   36,517
Cash received from exercised options   $ 330
2008 Stock Incentive Plan [Member]    
Share Based Compensation (Textual)    
SAR and common restricted stock, shares   250,000
Option awards vesting period   5 years
Option awards contractual terms   10 years
2017 Stock Incentive Plan [Member]    
Share Based Compensation (Textual)    
Shares available for grants of awards 500,000  
Restricted Stock [Member]    
Share Based Compensation (Textual)    
Option awards vesting period   4 years
Compensation cost charged against income   $ 100
Total income tax benefit recognized in income statement for share-based compensation arrangements   $ 30
Weighted-average period term   3 years
Total unrecognized compensation cost related to non-vested share-based compensation arrangements granted under plan   $ 750