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Subsequent Events (Details) (USD $) | 12 Months Ended | 1 Months Ended |
--- | --- | --- | ---
Dec. 31, 2013 Annex Manufacturing [Member] | Apr. 30, 2014 Subsequent Event [Member] Annex Manufacturing [Member] | Apr. 30, 2014 Subsequent Event [Member] Gwo Yng Enterprise Co. [Member]
Subsequent Event [Line Items] |  |  |
Joint venture percentage (in hundredths) |  |  | 50.00%
Cash paid for interest in joint venture |  |  | $ 14,000,000
Cash paid for acquisition |  | 11,500,000 |
Revenue of acquisition | $ 22,000,000 |  |
Percentage of revenue from acquisition contributed by parent (in hundredths) |  | 40.00% |

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