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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($)
$ in Thousands
Common stock [Member]
Preferred stock [Member]
Nonvested Restricted Stock [Member]
Additional paid-in capital [Member]
Accumulated other comprehensive loss [Member]
Retained earnings [Member]
Total
Balance at Dec. 31, 2017 $ 73 $ (502) $ 99,986 $ (456) $ 50,585 $ 149,686
Balance, shares at Dec. 31, 2017 7,347,851          
Net income 10,724 10,724
Proceeds from exercise of stock options $ 1 637 638
Proceeds from exercise of stock options, shares 66,321            
Issuance of restricted stock (501) 501
Issuance of restricted stock, shares 11,500            
Compensation expense related to restricted stock, net of tax 150 150
Compensation expense related to stock options, net of tax 567 567
Other comprehensive income (909) (909)
Balance at Jun. 30, 2018 $ 74 (853) 101,691 (1,365) 61,309 160,856
Balance, shares at Jun. 30, 2018 7,425,672          
Balance at Mar. 31, 2018 $ 74 (842) 100,890 (1,182) 55,799 154,739
Balance, shares at Mar. 31, 2018 7,381,716          
Net income 5,510 5,510
Proceeds from exercise of stock options 409 409
Proceeds from exercise of stock options, shares 41,956          
Issuance of restricted stock (92) 92
Issuance of restricted stock, shares 2,000          
Compensation expense related to restricted stock, net of tax 81 81
Compensation expense related to stock options, net of tax 300 300
Other comprehensive income (183) (183)
Balance at Jun. 30, 2018 $ 74 (853) 101,691 (1,365) 61,309 160,856
Balance, shares at Jun. 30, 2018 7,425,672          
Balance at Dec. 31, 2018 $ 75 (741) 102,625 (917) 72,874 173,916
Balance, shares at Dec. 31, 2018 7,466,481          
Net income 13,249 13,249
Proceeds from exercise of stock options $ 1 758 759
Proceeds from exercise of stock options, shares 80,742          
Issuance of restricted stock (347) 347
Issuance of restricted stock, shares 10,700            
Compensation expense related to restricted stock, net of tax 201 201
Compensation expense related to stock options, net of tax 624 624
Other comprehensive income 1,105 1,105
Balance at Jun. 30, 2019 $ 76 (887) 104,354 188 86,123 189,854
Balance, shares at Jun. 30, 2019 7,557,923          
Balance at Mar. 31, 2019 $ 75 (993) 103,600 (379) 78,883 181,186
Balance, shares at Mar. 31, 2019 7,505,636          
Net income 7,240 7,240
Proceeds from exercise of stock options $ 1 436 437
Proceeds from exercise of stock options, shares 52,287          
Issuance of restricted stock
Issuance of restricted stock, shares          
Compensation expense related to restricted stock, net of tax 106 106
Compensation expense related to stock options, net of tax 318 318
Other comprehensive income 567 567
Balance at Jun. 30, 2019 $ 76 $ (887) $ 104,354 $ 188 $ 86,123 $ 189,854
Balance, shares at Jun. 30, 2019 7,557,923