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Share Based Compensation (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 6 Months Ended
Feb. 05, 2013
Apr. 30, 2017
Jun. 30, 2018
Share Based Compensation (Textual)      
Shares available for grants of awards    
Total intrinsic value     $ 340
Option exercised shares     28,000
Cash received from exercised options     $ 190
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)      
SAR and common restricted stock, shares     500,000
Shares available for grants of awards   500,000 18,268
Restricted Stock [Member]      
Share Based Compensation (Textual)      
Option awards vesting period 4 years    
Compensation cost charged against income     $ 150
Total income tax benefit recognized in income statement for share-based compensation arrangements     $ 30
Weighted-average period term     1 year 8 months 12 days
Total unrecognized compensation cost related to non-vested share-based compensation arrangements granted under plan     $ 660