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Commitments and Contingencies - Additional Information (Detail) | 0 Months Ended | 12 Months Ended |  |  |  | 12 Months Ended | 1 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 26, 2013 USD ($) | Nov. 15, 2012 USD ($) | Apr. 16, 2012 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2011 USD ($) | Dec. 31, 2013 GBP (£) | Dec. 09, 2002 | May 26, 1998 | Dec. 31, 2013 Seattle and Cambridge Projects [Member] USD ($) | Feb. 28, 2011 Galt Resources [Member] USD ($)
Gain Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Deferred income from revenue participation rights |  |  |  |  | $ 7,512,500 |  |  |  | $ 887,500 |
Income derived from Cambridge RPC's |  |  |  | 12,986 |  |  |  |  |  |
Post Finance cost proceeds |  |  |  |  |  |  | 5.00% | 5.00% |  |
Investment for future revenue rights |  |  |  |  |  |  |  |  |  | 7,512,500
Fees and costs |  | 130,000 |  |  |  |  |  |  |  |
Excess of claim |  |  | 3,000,000 |  |  |  |  |  |  |
Attorney fees | 1,072,979 |  |  |  |  |  |  |  |  |
Marketing, general and administrative expenses |  |  |  | 942,979 |  |  |  |  |  |
Charter agreement expiry date |  |  |  | Apr. 30, 2014 |  |  |  |  |  |
Charter term agreement period extended |  |  |  | 4 years |  |  |  |  |  |
Daily charter rate for years one and two |  |  |  | 14,000 |  | 8,400 |  |  |  |
Daily charter rate for years three and four |  |  |  | $ 14,900 |  | £ 8,960 |  |  |  |

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