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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands | Nonvested restricted stock [Member] | Common stock [Member] | Preferred stock [Member] | Additional paid-in capital [Member] | Accumulated other comprehensive income (loss) [Member] | Retained Earnings [Member] | Total
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2017 | $ (502) | $ 73 |  | $ 99,986 | $ (456) | $ 50,585 | $ 149,686
Balance, shares at Dec. 31, 2017 |  | 7,347,851 |  |  |  |  |
Net income |  |  |  |  |  | 22,289 | 22,289
Proceeds from exercise of stock options |  | $ 2 |  | 898 |  |  | 900
Proceeds from exercise of stock options, shares |  | 105,630 |  |  |  |  |
Issuance of restricted stock | (558) |  |  | 558 |  |  |
Issuance of restricted stock, shares |  | 13,000 |  |  |  |  |
Compensation expense related to restricted stock, net of tax | 319 |  |  |  |  |  | 319
Compensation expense related to stock options, net of tax |  |  |  | 1,183 |  |  | 1,183
Other comprehensive income (loss) |  |  |  |  | (461) |  | (461)
Balance at Dec. 31, 2018 | (741) | $ 75 |  | 102,625 | (917) | 72,874 | 173,916
Balance, shares at Dec. 31, 2018 |  | 7,466,481 |  |  |  |  |
Net income |  |  |  |  |  | 27,858 | 27,858
Proceeds from exercise of stock options |  | $ 2 |  | 1,767 |  |  | 1,769
Proceeds from exercise of stock options, shares |  | 191,497 |  |  |  |  |
Issuance of restricted stock | (490) |  |  | 490 |  |  |
Issuance of restricted stock, shares |  | 14,700 |  |  |  |  |
Compensation expense related to restricted stock, net of tax | 428 |  |  |  |  |  | 428
Compensation expense related to stock options, net of tax |  |  |  | 1,270 |  |  | 1,270
Other comprehensive income (loss) |  |  |  |  | 619 |  | 619
Balance at Dec. 31, 2019 | (803) | $ 77 |  | 106,152 | (298) | 100,732 | 205,860
Balance, shares at Dec. 31, 2019 |  | 7,672,678 |  |  |  |  |
Net income |  |  |  |  |  | 18,328 | 18,328
Proceeds from exercise of stock options |  | $ 1 |  | 1,387 |  |  | 1,388
Proceeds from exercise of stock options, shares |  | 93,870 |  |  |  |  |
Issuance of restricted stock, net of forfeitures | (275) |  |  | 275 |  |  |
Issuance of restricted stock, net of forfeitures, shares |  | 6,200 |  |  |  |  |
Compensation expense related to restricted stock, net of tax | 380 |  |  |  |  |  | 380
Compensation expense related to stock options, net of tax |  |  |  | 1,017 |  |  | 1,017
Other comprehensive income (loss) |  |  |  |  | 1,321 |  | 1,321
Balance at Dec. 31, 2020 | $ (698) | $ 78 |  | $ 108,831 | $ 1,023 | $ 119,060 | $ 228,294
Balance, shares at Dec. 31, 2020 |  | 7,772,748 |  |  |  |  |

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