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Derivative Liabilities - Additional Information (Detail) (USD $)
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12 Months Ended | |
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Dec. 28, 2013
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Dec. 31, 2012
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| Derivative Instruments, Gain (Loss) [Line Items] | ||
| Outstanding warrants expiration date | Aug. 11, 2013 | |
| Fair value of derivative financial instruments | $ 0 | $ 34,486 |
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Class B Warrants [Member]
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| Derivative Instruments, Gain (Loss) [Line Items] | ||
| Total number of warrants treated as derivative liabilities, common shares indexed | 1,112,487 | |
| Exercise price of warrants treated as derivative liabilities | 2.25 | |
| Fair value of the Class B warrants | $ 0 | |
| Outstanding warrants expiration date | Aug. 11, 2013 | |