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Consolidated Statements of Changes in Shareholders' Equity - USD ($)
$ in Thousands
Total
Common Stock [Member]
Surplus [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income [Member]
Beginning Balance at Dec. 31, 2014 $ 73,132 $ 8,621 $ 12,618 $ 50,578 $ 1,315
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income 6,897     6,897  
Other comprehensive income (loss) (264)       (264)
Restricted stock awards, stock incentive plan   36 (36)    
Income tax benefit on vesting restricted stock 5   5    
Stock-based compensation expense 328   328    
Issuance of common stock, dividend investment plan 729 81 648    
Issuance of common stock, employee benefit plan 187 20 167    
Dividends declared (2,793)     (2,793)  
Ending Balance at Dec. 31, 2015 78,221 8,758 13,730 54,682 1,051
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income 6,370     6,370  
Other comprehensive income (loss) (1,075)       (1,075)
Restricted stock awards, stock incentive plan   33 (33)    
Income tax benefit on vesting restricted stock 2   2    
Stock-based compensation expense 314   314    
Issuance of common stock, dividend investment plan 533 58 475    
Issuance of common stock, employee benefit plan 81 8 73    
Retirement of common stock (2,143) (224) (1,919)    
Dividends declared (2,887)     (2,887)  
Ending Balance at Dec. 31, 2016 79,416 8,633 12,642 58,165 (24)
Increase (Decrease) in Stockholders' Equity [Roll Forward]          
Net income 7,786     7,786  
Other comprehensive income (loss) 283       283
Reclassification of stranded tax effects from change in tax rate 51     (51) 51
Restricted stock awards, stock incentive plan   36 (36)    
Stock-based compensation expense 382   382    
Issuance of common stock, dividend investment plan 403 35 368    
Issuance of common stock, employee benefit plan 166 15 151    
Retirement of common stock (1,564) (132) (1,432)    
Dividends declared (3,055)     (3,055)  
Ending Balance at Dec. 31, 2017 $ 83,817 $ 8,587 $ 12,075 $ 62,845 $ 310