XML 25 R55.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Restricted Cash - Additional Information (Detail) (USD $) |  |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2013 | May 10, 2012 | Jul. 11, 2008 | Dec. 31, 2013 Term Loan [Member] | Dec. 31, 2013 Project Term Loan [Member] | Jul. 31, 2013 Project Term Loan [Member] | Dec. 31, 2013 Project Term Loan [Member] Gairsoppa [Member]
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |  |  |  |  |
Restricted cash | $ 500,000 |  | $ 500,000 | $ 405,626 | $ 280,106 | $ 500,000 |
Restricted cash | 400,000 |  |  |  |  |  |
Restricted cash and cash equivalents maturity period |  |  |  |  | 2013-07 |  |
Restricted cash for term loan |  | 8,000,000 |  |  |  | 10,000,000 |
Loan maturity period |  |  |  |  | 2014-07 |  |
Restricted cash |  |  |  |  |  |  | $ 10,000,000

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