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v3.19.1

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Class A Common Stock [Member] | Class B Common Stock [Member] | Additional Paid-In Capital [Member] | Retained Earnings [Member] | Treasury Stock [Member]
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2015 | $ 122,816 | $ 66 | $ 8 | $ 57,510 | $ 98,180 | $ (32,948)
Balance, shares at Dec. 31, 2015 |  | 6,603 | 865 |  |  |
Net income | 18,186 |  |  |  | 18,186 |
Conversion of shares from Class B to Class A | 0 | $ 0 | $ 0 | 0 | 0 | 0
Conversion of shares from Class B to Class A (in shares) |  | 12 | (12) |  |  |
Issuance of restricted stock | 0 | $ 0 | $ 0 | 0 | 0 | 0
Issuance of restricted stock (in shares) |  | 23 | 25 |  |  |
Dividends declared per common share | (7,633) | $ 0 | $ 0 | 0 | (7,633) | 0
Compensation expense related to restricted stock awards | 2,101 | 0 | 0 | 2,101 | 0 | 0
Purchase of shares held in treasury | (746) | 0 | 0 | 0 | 0 | (746)
401(k) plan contribution | 258 | 0 | 0 | (54) | 0 | 312
Balance at Dec. 31, 2016 | 134,982 | $ 66 | $ 8 | 59,557 | 108,733 | (33,382)
Balance, shares at Dec. 31, 2016 |  | 6,638 | 878 |  |  |
Net income | 54,717 |  |  |  | 54,717 |
Conversion of shares from Class B to Class A | 0 | $ 0 | $ 0 |  | 0 | 0
Conversion of shares from Class B to Class A (in shares) |  | 17 | (17) |  |  |
Issuance of restricted stock | 0 | $ 0 | $ 1 | (1) | 0 | 0
Issuance of restricted stock (in shares) |  | 19 | 29 |  |  |
Forfeiture of restricted stock | 0 | $ 0 |  |  | 0 | 0
Forfeiture of restricted stock (in shares) |  | (1) |  |  |  |
Net proceeds from exercised options | 1 | $ 1 | $ 0 | 826 | 0 | (826)
Net proceeds from exercised options (in shares) |  | 21 | 8 |  |  |
Dividends declared per common share | (11,842) | $ 0 | $ 0 |  | (11,842) |
Compensation expense related to restricted stock awards | 2,279 | 0 | 0 | 2,279 | 0 | 0
Purchase of shares held in treasury | (946) | 0 | 0 |  | 0 | (946)
401(k) plan contribution | 274 | 0 | 0 | 14 | 0 | 260
Balance at Dec. 31, 2017 | 179,465 | $ 67 | $ 9 | 62,675 | 151,608 | (34,894)
Balance, shares at Dec. 31, 2017 |  | 6,694 | 898 |  |  |
Net income | 13,690 |  |  |  | 13,690 |
Conversion of shares from Class B to Class A | 0 | $ 0 | $ 0 | 0 | 0 | 0
Conversion of shares from Class B to Class A (in shares) |  | 12 | (12) |  |  |
Issuance of restricted stock | 0 | $ 0 | $ 0 | 0 | 0 | 0
Issuance of restricted stock (in shares) |  | 27 | 37 |  |  |
Forfeiture of restricted stock | 0 | $ 0 | $ 0 |  |  |
Forfeiture of restricted stock (in shares) |  | (1) |  |  |  |
Dividends declared per common share | (8,609) | $ 0 | 0 |  | (8,609) |
Compensation expense related to restricted stock awards | 2,201 | 0 | 0 | 2,201 |  |
Purchase of shares held in treasury | (2,000) | 0 | 0 |  |  | (2,000)
401(k) plan contribution | 252 | 0 | 0 | (81) |  | 333
Balance at Dec. 31, 2018 | $ 184,999 | $ 67 | $ 9 | $ 64,795 | $ 156,689 | $ (36,561)
Balance, shares at Dec. 31, 2018 |  | 6,732 | 923 |  |  |

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