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Depreciation and Amortization | 12 Months Ended
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Dec. 31, 2014
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Depreciation and Amortization | (10) Depreciation and Amortization The Company includes all categories of depreciation and amortization on a separate line in its Statements of Operations. The amounts of depreciation and amortization expense excluded from the following operating expenses in its Statements of Operations are:
|  | Year Ended December 31, |
|  | 2014 |  |  | 2013 |  |  | 2012 |
Direct expenses |  | $ | 241,471 |  |  | $ | 283,280 |  |  | $ | 277,662 |
General and administrative expenses |  |  | 4,534 |  |  |  | 4,684 |  |  |  | 4,137 |
Corporate expenses |  |  | 12,430 |  |  |  | 12,615 |  |  |  | 14,284 |
|  | $ | 258,435 |  |  | $ | 300,579 |  |  | $ | 296,083 |

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