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Consolidated Statements of Stockholders' Equity (USD $) In Thousands | Total | Additional Paid-In Capital | Retained Earnings | Treasury Stock | Class A Common Stock | Class B Common Stock
--- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2009 | $ 64,093 | $ 49,352 | $ 43,064 | $ (28,395) | $ 64 | $ 8
Balance, shares at Dec. 31, 2009 |  |  |  |  | 6,360 | 799
Net income | 15,136 |  | 15,136 |  |  |
Conversion of shares from Class B to Class A | 0 |  |  |  | 1 | (1)
Forfeiture of restricted stock, shares |  |  |  |  | (3) |
Compensation expense related to restricted stock awards | 360 | 360 |  |  |  |
Share-based compensation cost | 567 | 567 |  |  |  |
Purchase of shares held in treasury | (78) |  |  | (78) |  |
Balance at Dec. 31, 2010 | 80,078 | 50,279 | 58,200 | (28,473) | 64 | 8
Balance, shares at Dec. 31, 2010 |  |  |  |  | 6,358 | 798
Net income | 12,631 |  | 12,631 |  |  |
Conversion of shares from Class B to Class A | 0 |  |  |  | 1 | (1)
Compensation expense related to restricted stock awards | 187 | 187 |  |  |  |
Share-based compensation cost | 196 | 196 |  |  |  |
Purchase of shares held in treasury | (117) |  |  | (117) |  |
Balance at Dec. 31, 2011 | 92,975 | 50,662 | 70,831 | (28,590) | 64 | 8
Balance, shares at Dec. 31, 2011 |  |  |  |  | 6,359 | 797
Net income | 17,925 |  | 17,925 |  |  |
Conversion of shares from Class B to Class A | 0 |  |  |  |  |
Net proceeds from exercised options | 267 | 267 |  |  |  |
Dividends declared per common share | (7,010) |  | (7,010) |  |  |
Compensation expense related to restricted stock awards | 110 | 110 |  |  |  |
Share-based compensation cost | 22 | 22 |  |  |  |
Purchase of shares held in treasury | (80) |  |  | (80) |  |
Balance at Dec. 31, 2012 | $ 104,209 | $ 51,061 | $ 81,746 | $ (28,670) | $ 64 | $ 8
Balance, shares at Dec. 31, 2012 |  |  |  |  | 6,369 | 797

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