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Consolidated Statements of Shareholders' Equity - USD ($)
$ in Thousands
Total
Common stock
Preferred stock
Additional paid-in capital
Accumulated other comprehensive income (loss)
Retained Earnings
Nonvested restricted stock
Balance at Dec. 31, 2014 $ 82,992 $ 62 $ 68,785 $ 302 $ 14,337 $ (494)
Balance, shares at Dec. 31, 2014   6,219,002        
Net income 10,167 10,167  
Proceeds from exercise of stock options 628 $ 1 627  
Proceeds from exercise of stock options, shares   67,036        
Issuance of restricted stock 69 (69)
Issuance of restricted stock, shares   3,000        
Compensation expense related to restricted stock, net of tax 203 203
Compensation expense related to stock options, net of tax 556 556  
Other comprehensive income/ loss (306) (306)  
Balance at Dec. 31, 2015 94,240 $ 63 70,037 (4) 24,504 (360)
Balance, shares at Dec. 31, 2015   6,289,038        
Net income 13,036 13,036  
Proceeds from exercise of stock options 1,098 $ 2 1,096  
Proceeds from exercise of stock options, shares   152,751        
Issuance of restricted stock 526 (526)
Issuance of restricted stock, shares   22,000        
Compensation expense related to restricted stock, net of tax 469 183 286
Compensation expense related to stock options, net of tax 1,529 1,529  
Other comprehensive income/ loss (500) (500)  
Balance at Dec. 31, 2016 109,872 $ 65 73,371 (504) 37,540 (600)
Balance, shares at Dec. 31, 2016   6,463,789        
Net income 13,045 13,045  
Net issuance of common stock 24,758 $ 8 24,750  
Net issuance of common stock, shares   805,000        
Proceeds from exercise of stock options 705 705  
Proceeds from exercise of stock options, shares   74,437        
Issuance of restricted stock 201 (201)
Issuance of restricted stock, shares   4,625        
Compensation expense related to restricted stock, net of tax 299 299
Compensation expense related to stock options, net of tax 959     959      
Other comprehensive income/ loss 48 48  
Balance at Dec. 31, 2017 $ 149,686 $ 73 $ 99,986 $ (456) $ 50,585 $ (502)
Balance, shares at Dec. 31, 2017   7,347,851