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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) | Total | Common Stock | Additional Paid-In Capital | Treasury Stock | Retained Earnings
--- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2008 | $ 105,594,489 | $ 190,963 | $ 28,051,009 | $ (48,943,359) | $ 126,295,876
Balance (in shares) at Dec. 31, 2008 |  | 16,122,048 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Exercise of stock options, including related tax benefit | 19,683 |  | (58,697) | 78,380 |
Exercise of stock options, including related tax benefit (in shares) |  | 3,340 |  |  |
Share based compensation expense | 2,048,771 |  | 2,048,771 |  |
Net income | 4,841,479 |  |  |  | 4,841,479
Balance at Dec. 31, 2009 | 112,504,422 | 190,963 | 30,041,083 | (48,864,979) | 131,137,355
Balance (in shares) at Dec. 31, 2009 |  | 16,125,388 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Exercise of stock options, including related tax benefit | 99,843 |  | (223,473) | 323,316 |
Exercise of stock options, including related tax benefit (in shares) |  | 12,770 |  |  |
Share based compensation expense | 1,741,083 |  | 1,741,083 |  |
Net income | 8,236,261 |  |  |  | 8,236,261
Balance at Dec. 31, 2010 | 122,581,609 | 190,963 | 31,558,693 | (48,541,663) | 139,373,616
Balance (in shares) at Dec. 31, 2010 | 16,138,158 | 16,138,158 |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Share based compensation expense | 1,619,652 |  | 1,619,652 |  |
Accounting change for base jackpots | 638,865 |  |  |  | 638,865
Net income | 5,675,854 |  |  |  | 5,675,854
Balance at Dec. 31, 2011 | $ 130,515,980 | $ 190,963 | $ 33,178,345 | $ (48,541,663) | $ 145,688,335
Balance (in shares) at Dec. 31, 2011 | 16,138,158 | 16,138,158 |  |  |

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