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3. Prepaid Expenses and Other Current Assets | 12 Months Ended
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Dec. 31, 2013
Prepaid Expense and Other Assets [Abstract] |
3. Prepaid Expenses and Other Current Assets | Prepaid expenses and other current assets consist of the following at December 31, 2013 and 2012:
|  | December 31, |
|  | 2013 |  |  | 2012 |
Site equipment to be installed |  | $ | 1,069,000 |  |  | $ | 77,000 |
Deposits |  |  | 413,000 |  |  |  | 437,000 |
Prepaid expenses |  |  | 340,000 |  |  |  | 384,000 |
Total |  | $ | 1,822,000 |  |  | $ | 898,000 |

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