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v3.20.1

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Class A Common Stock | Class B Common Stock | Additional Paid-in Capital | Retained Earnings | Treasury Stock | Total
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2016 | $ 66 | $ 8 | $ 59,557 | $ 108,733 | $ (33,382) | $ 134,982
Balance, shares at Dec. 31, 2016 | 6,638 | 878 |  |  |  |
Net income | $ 0 | $ 0 |  | 54,717 |  | 54,717
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) | 17 | (17) |  |  |  |
Issuance of restricted stock | $ 0 | $ 1 | (1) | 0 | 0 | 0
Issuance of restricted stock (in shares) | 19 | 29 |  |  |  |
Forfeiture of restricted stock | $ 0 | $ 0 |  |  |  |
Forfeiture of restricted stock (in shares) | (1) |  |  |  |  |
Net proceeds from exercised options | $ 1 | $ 0 | 826 |  | (826) | 1
Net proceeds from exercised options (in shares) | 21 | 8 |  |  |  |
Dividends declared per common share | $ 0 | $ 0 |  | (11,842) |  | (11,842)
Compensation expense related to restricted stock awards | 0 | 0 | 2,279 | 0 | 0 | 2,279
Purchase of shares held in treasury | 0 | 0 | 0 | 0 | (946) | (946)
401(k) plan contribution | 0 | 0 | 14 | 0 | 260 | 274
Balance at Dec. 31, 2017 | $ 67 | $ 9 | 62,675 | 151,608 | (34,894) | 179,465
Balance, shares at Dec. 31, 2017 | 6,694 | 898 |  |  |  |
Net income | $ 0 | $ 0 |  | 13,690 |  | 13,690
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) | 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 | 0
Forfeiture of restricted stock (in shares) | (1) |  |  |  |  |
Dividends declared per common share | $ 0 | $ 0 |  | (8,609) |  | (8,609)
Compensation expense related to restricted stock awards | 0 | 0 | 2,201 | 0 | 0 | 2,201
Purchase of shares held in treasury | 0 | 0 |  | 0 | (2,000) | (2,000)
401(k) plan contribution | 0 | 0 | (81) | 0 | 333 | 252
Balance at Dec. 31, 2018 | $ 67 | $ 9 | 64,795 | 156,689 | (36,561) | 184,999
Balance, shares at Dec. 31, 2018 | 6,732 | 923 |  |  |  |
Net income | $ 0 | $ 0 |  | 13,279 |  | 13,279
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) | 13 | (13) |  |  |  |
Issuance of restricted stock | $ 1 | $ 0 | 0 | 0 | 0 | 1
Issuance of restricted stock (in shares) | 29 | 44 |  |  |  |
Forfeiture of restricted stock | $ 0 | $ 0 |  |  |  | 0
Forfeiture of restricted stock (in shares) | (3) |  |  |  |  |
Dividends declared per common share | $ 0 | 0 |  | (7,146) |  | (7,146)
Compensation expense related to restricted stock awards | 0 | 0 | 2,129 |  |  | 2,129
Purchase of shares held in treasury | 0 | 0 |  |  | (1,172) | (1,172)
401(k) plan contribution | 0 | 0 | (113) |  | 375 | 262
Balance at Dec. 31, 2019 | $ 68 | $ 9 | $ 66,811 | $ 162,822 | $ (37,358) | $ 192,352
Balance, shares at Dec. 31, 2019 | 6,771 | 954 |  |  |  |

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