Warrants - Summary of Warrant Activity (Details) |
3 Months Ended |
|---|---|
|
Mar. 31, 2018
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| Warrants [Member] | |
| Number of warrants outstanding, beginning | 209,000 |
| Number of warrants expired | |
| Number of warrants exercised | |
| Number of warrants outstanding, ending | 209,000 |
| April 2013 Warrants [Member] | Equity [Member] | |
| Number of warrants outstanding, beginning | 50,000 |
| Number of warrants expired | |
| Number of warrants exercised | |
| Number of warrants outstanding, ending | 50,000 |
| Warrant expiration date | Apr. 25, 2018 |
| October 2013 Series A Warrants [Member] | Liabilities [Member] | |
| Number of warrants outstanding, beginning | 26,000 |
| Number of warrants expired | |
| Number of warrants exercised | |
| Number of warrants outstanding, ending | 26,000 |
| Warrant expiration date | Oct. 24, 2023 |
| January 2014 Warrants [Member] | Liabilities [Member] | |
| Number of warrants outstanding, beginning | 133,000 |
| Number of warrants expired | |
| Number of warrants exercised | |
| Number of warrants outstanding, ending | 133,000 |
| Warrant expiration date | Jan. 16, 2024 |