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Senior Convertible Notes (Tables) | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2018 | Dec. 31, 2017
Debt Disclosure [Abstract] |  |
Schedule of Debt, Accrued Interest and Interest Expense | The balance of our Senior Convertible Notes (“Senior Notes”) and accrued interest at June 30, 2018 and December 31, 2017 was as follows:
|  |  |  |  | Unamortized |  |  |  |  |  |  |
|  | Senior |  |  | Debt |  |  | Senior |  |  |  |
|  | Convertible |  |  | Issuance |  |  | Convertible |  |  | Accrued |
|  | Notes |  |  | Costs |  |  | Notes, Net |  |  | Interest |
Balance, December 31, 2017 |  | $ | 2,580,000 |  |  | $ | (131,430 | ) |  | $ | 2,448,570 |  |  | $ | 35,693 |
Conversion of debt |  | $ | (2,350,000 | ) |  | $ | 64,361 |  |  | $ | (2,285,639 | ) |  | $ | (109,472 | )
Accrued interest |  |  | - |  |  |  | - |  |  |  | - |  |  |  | 84,922 |
Amortize debt issuance costs |  |  | - |  |  |  | 61,132 |  |  |  | 61,132 |  |  |  | - |
Balance, June 30, 2018 |  |  | 230,000 |  |  |  | (5,937 | ) |  |  | 224,063 |  |  |  | 11,143 |
Current portion |  |  | (230,000 | ) |  |  | 5,937 |  |  |  | (224,063 | ) |  |  | (11,143 | )
Long-term portion |  | $ | - |  |  | $ | - |  |  | $ | - |  |  | $ | - |
| Debt and accrued interest at December 31, 2017 and interest expense for the year ended December 31, 2017 are as follows:
|  | Debt Balance |  |  | Accrued Interest |  |  | Interest Expense |
Senior Convertible Notes |  | $ | 2,580,000 |  |  | $ | 35,693 |  |  | $ | 35,693 |
Unamortized Debt Issuance Cost |  |  | (131,430 | ) |  |  | - |  |  |  | 23,370 |
Balance, December 31, 2017 |  | $ | 2,448,570 |  |  | $ | 35,693 |  |  | $ | 59,063 |

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