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Related Party Transactions - Narrative (Details) - USD ($) |  |  | 3 Months Ended | 9 Months Ended | 43 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Jan. 01, 2013 | Feb. 27, 2012 | Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Dec. 31, 2014
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Prepaid and other current assets |  |  | $ 707,000 |  | $ 707,000 |  | $ 707,000 | $ 899,000
5 Elements Efficienties (BVI) Ltd [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Ownership interest |  |  |  |  | 50.00% |  |  |
Commission fee |  |  |  |  | 5.00% |  |  |
Communal [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Commission fee |  | 5.00% |  |  |  |  |  |
Agreement term |  | 60 months |  |  |  |  |  |
Payments for commissions |  |  |  |  |  |  | 0 |
Extension of agreement, terms | 12 months |  |  |  |  |  |  |
Recorded expenses under agreement |  |  | 56,000 | $ 56,000 | $ 169,000 | $ 169,000 |  |
Prepaid and other current assets |  |  | $ 56,000 |  | $ 56,000 |  | $ 56,000 |
Communal [Member] | 5 Elements Efficienties (BVI) Ltd [Member] | Yeh-Mei Cheng [Member] |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |
Ownership interest |  |  |  |  | 50.00% |  |  |

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