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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | AOCI Attributable to Parent [Member] | Total
--- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2018 | $ 15,718 | $ 270,761 | $ 192,203 | $ (5,544) | $ 473,138
Net income |  |  | 12,918 |  | 12,918
Other comprehensive income (loss), net of tax |  |  |  | 2,344 | 2,344
Common cash dividends declared |  |  | (942) |  | (942)
Issuance of shares of common stock as a result of stock purchased under the Employee Stock Purchase Plan | 4 | 124 |  |  | 128
Issuance of shares of common stock as a result of stock options exercised | 25 | 263 |  |  | 288
Stock-based compensation expense |  | 722 |  |  | 722
Restricted stock awards and restricted stock units of common stock, net of restricted stock units withheld for payment for taxes | 13 | (50) |  |  | (37)
Exchange of shares of common stock in connection with payroll taxes for restricted stock and in connection with stock options exercised | (5) | (147) |  |  | (152)
Balance at Mar. 31, 2019 | 15,755 | 271,673 | 204,179 | (3,200) | 488,407
Balance at Dec. 31, 2018 | 15,718 | 270,761 | 192,203 | (5,544) | 473,138
Net income |  |  |  |  | 26,422
Other comprehensive income (loss), net of tax |  |  |  |  | 4,586
Balance at Jun. 30, 2019 | 15,773 | 272,744 | 216,741 | (958) | 504,300
Balance at Mar. 31, 2019 | 15,755 | 271,673 | 204,179 | (3,200) | 488,407
Net income |  |  | 13,504 |  | 13,504
Other comprehensive income (loss), net of tax |  |  |  | 2,242 | 2,242
Common cash dividends declared |  |  | (942) |  | (942)
Issuance of shares of common stock as a result of stock purchased under the Employee Stock Purchase Plan | 11 | 323 |  |  | 334
Issuance of shares of common stock as a result of stock options exercised | 3 | 41 |  |  | 44
Stock-based compensation expense |  | 719 |  |  | 719
Restricted stock awards and restricted stock units of common stock, net of restricted stock units withheld for payment for taxes | 5 | (5) |  |  |
Exchange of shares of common stock in connection with payroll taxes for restricted stock and in connection with stock options exercised | (1) | (7) |  |  | (8)
Balance at Jun. 30, 2019 | 15,773 | 272,744 | 216,741 | (958) | 504,300
Balance at Dec. 31, 2019 | 15,828 | 274,785 | 245,836 | (1,098) | 535,351
Net income |  |  | 11,228 |  | 11,228
Other comprehensive income (loss), net of tax |  |  |  | (3,691) | (3,691)
Common cash dividends declared |  |  | (942) |  | (942)
Repurchase and cancellation of 100,932 shares of common stock as a result of share repurchase program | (101) | (1,844) | (1,835) |  | (3,780)
Issuance of shares of common stock as a result of stock purchased under the Employee Stock Purchase Plan | 6 | 208 |  |  | 214
Issuance of shares of common stock as a result of stock options exercised | 32 | 274 |  |  | 306
Stock-based compensation expense |  | 641 |  |  | 641
Restricted stock awards and restricted stock units of common stock, net of restricted stock units withheld for payment for taxes | 10 | (8) |  |  | 2
Exchange of shares of common stock in connection with payroll taxes for restricted stock and in connection with stock options exercised | (1) | (189) |  |  | (190)
Balance at Mar. 31, 2020 | 15,774 | 273,867 | 254,287 | (4,789) | 539,139
Balance at Dec. 31, 2019 | 15,828 | 274,785 | 245,836 | (1,098) | 535,351
Net income |  |  |  |  | 24,967
Other comprehensive income (loss), net of tax |  |  |  |  | (69)
Balance at Jun. 30, 2020 | 15,791 | 274,315 | 267,081 | (1,167) | 556,020
Balance at Mar. 31, 2020 | 15,774 | 273,867 | 254,287 | (4,789) | 539,139
Net income |  |  | 13,739 |  | 13,739
Other comprehensive income (loss), net of tax |  |  |  | 3,622 | 3,622
Common cash dividends declared |  |  | (945) |  | (945)
Issuance of shares of common stock as a result of stock purchased under the Employee Stock Purchase Plan | 16 | 462 |  |  | 478
Issuance of shares of common stock as a result of stock options exercised | 1 | 9 |  |  | 10
Stock-based compensation expense |  | 423 |  |  | 423
Exchange of shares of common stock in connection with payroll taxes for restricted stock and in connection with stock options exercised |  | (446) |  |  | (446)
Balance at Jun. 30, 2020 | $ 15,791 | $ 274,315 | $ 267,081 | $ (1,167) | $ 556,020

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