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Selling, General and Administrative Expenses | 9 Months Ended
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Sep. 30, 2013
Selling, General and Administrative Expenses | 16. Selling, general and administrative expenses Selling, general and administrative expenses consist of the following:
|  | Three months ended September 30, |  |  | Nine months ended September 30, |
|  | 2012 |  |  | 2013 |  |  | 2012 |  |  | 2013 |
Personnel expenses |  | $ | 80,421 |  |  | $ | 83,580 |  |  | $ | 230,917 |  |  | $ | 251,379 |
Operational expenses |  |  | 35,916 |  |  |  | 31,318 |  |  |  | 100,318 |  |  |  | 90,865 |
Depreciation and amortization |  |  | 2,199 |  |  |  | 2,107 |  |  |  | 6,559 |  |  |  | 6,388 |
|  | $ | 118,536 |  |  | $ | 117,005 |  |  | $ | 337,794 |  |  | $ | 348,632 |

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- Definition Describes the nature of and identifies the significant items comprising an entity's selling, general and administrative (or similar) report caption. + References No definition available. + Details
Name: | g_SellingGeneralAndAdministrativeTextBlock
Namespace Prefix: | g_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration