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Common Stock (Details) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Jun. 25, 2014
May 06, 2014
Employee [Member]          
Class of Stock [Line Items]          
Restricted shares, vesting period 4 years        
Director [Member]          
Class of Stock [Line Items]          
Restricted shares, vesting period 12 months        
Dividend Reinvestment Plan [Member]          
Class of Stock [Line Items]          
Shares authorized per plan 330,750        
2014 Restricted Stock Plan [Member]          
Class of Stock [Line Items]          
Shares authorized per plan       100,000 100,000
Shares granted, net 36,859        
Shares granted 12,250 10,440      
Shares forfeited 1,876 0 470    
Unrecognized compensation cost related to all non-vested share-based compensation awards   $ 582,000      
Weighted average recognition period   2 years 3 months 18 days      
2014 Restricted Stock Plan [Member] | Employee [Member]          
Class of Stock [Line Items]          
Shares granted 7,450 6,040 7,450    
2014 Restricted Stock Plan [Member] | Director [Member]          
Class of Stock [Line Items]          
Shares granted 4,800 4,400