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Stock-Based Compensation (Narrative) (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 14, 2012
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock based compensation expense   $ 86,000 $ 67,000 $ 158,000 $ 127,000  
Exercised, SARs       0    
Stock Options [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based compensation, vesting period       42 months    
Share-based compensation, expiration period       10 years    
Period options become exercisable       4 years    
Employee Deferred Stock Award [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Share-based compensation, other than options granted       1,000    
Share-based compensation, vesting period       4 years    
Share-based compensation, nonvested number of shares   35,500   35,500   34,750
Share-based Compensation, nonvested, weighted average grant date fair value   $ 10.26   $ 10.26   $ 10.27
Restricted Stock [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Restricted stock, percentage that will vest       100.00%    
Share-based compensation, vesting period       1 year    
Share-based compensation, nonvested number of shares   13,940   13,940    
Share-based Compensation, nonvested, weighted average grant date fair value   $ 10.76   $ 10.76    
Stock Appreciation Rights (SARs) [Member]            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock based compensation expense       $ 142,000 $ 34,000  
Share-based compensation, other than options granted 165,000          
Share-based compensation, nonvested number of shares   99,000   99,000   115,500
Share-based Compensation, nonvested, weighted average grant date fair value   $ 5.35   $ 5.35   $ 4.50
Benefit from appreciation in the value of common stock, per share $ 14.30          
Number of shares of stock each right represents 1          
Percentage of the Rights vested 10.00%          
Number of the Rights vested 16,500     66,000    
Number of remaining Rights vest per year 16,500          
Total liability of SARs vested       $ 641,420