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Shareholders' Equity (Schedule of Stock Option Activity) (Details) - 2011 Long-Term Incentive Plan [Member] - USD ($)
 6 Months Ended 12 Months Ended
Jun. 30, 2015
Dec. 31, 2014
Stock options:    
Balance at the beginning of period 366,400  
Granted 13,000  
Exercised    
Forfeited (30,000)  
Outstanding at the end of period 349,400 366,400
Exercisable at the end of period 278,401  
Weighted average exercise price;    
Balance at the beginning of period, per share $ 9.81  
Granted, per share 8.98  
Outstanding at the end of period, per share 9.34 $ 9.81
Exercisable at the end of period, per share $ 9.48  
Weighted average remaining contractual term:    
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm3 7 years 1 month 6 days 6 years 10 months 24 days
Granted (in years) 10 years  
SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm3 7 years 1 month 6 days 6 years 10 months 24 days
Exercisable at the end of period (in years) 6 years 4 months 24 days  
Aggregate intrinsic value:    
Balance at the beginning of period $ 268,400  
Outstanding at the end of period 268,400 $ 268,400
Exercisable at the end of period $ 229,774