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Stock-based Compensation (Details 1) - Stock option [Member] - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]    
Outstanding at beginning 86,059 82,590
Granted 58,396 8,974
Exercised (3,450) (2,450)
Forfeited (3,445) (2,525)
Expired (1,071) (530)
Outstanding at ending 136,489 86,059
Exercisable at ending 88,029  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]    
Outstanding at beginning $ 31.40 $ 33.40
Granted 25.80 30.60
Exercised 13.00 10.00
Forfeited
Expired
Outstanding at ending 27.84 $ 31.40
Exercisable at ending $ 30.77  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Life [Roll Forward]    
Outstanding at beginning 4 years 3 years 8 months 12 days
Granted 4 years 10 months 25 days 4 years 4 months 24 days
Outstanding at ending 3 years 10 months 25 days 4 years
Exercisable at ending 2 years 9 months 18 days  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Roll Forward]    
Outstanding at beginning [1]
Granted [1]
Outstanding at ending [1]
Exercisable at ending [1]  
[1] The aggregate intrinsic value on the table was calculated based on the difference between the estimated fair value of the Company's stock and the exercise price of the underlying option. The estimated stock values used in the calculation was $11.00 and $11.70 per share for each of the years ended December 31, 2019 and 2018 respectively.