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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
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3 Months Ended | 6 Months Ended | |||
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Jun. 28, 2014
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Jun. 28, 2014
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Dec. 28, 2013
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Jun. 29, 2013
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Dec. 31, 2012
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| Schedule Of Significant Accounting Policies [Line Items] | |||||
| Periodic installments of principal and interest | 24 months | 24 months | |||
| Allowance for loan loss | $ 131,210 | $ 131,210 | $ 201,960 | $ 241,510 | $ 329,500 |
| Definite-lived intangible assets | 0 | 0 | 0 | ||
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Maximum [Member]
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| Schedule Of Significant Accounting Policies [Line Items] | |||||
| Insured amount by the federal deposit insurance corporation | $ 250,000 | $ 250,000 |