Inventory Finance Notes Receivable and Allowance for Loan Loss - Additional Information (Detail) |
9 Months Ended | 12 Months Ended | |
|---|---|---|---|
|
Sep. 26, 2015
USD ($)
Customer
|
Sep. 27, 2014
USD ($)
|
Dec. 27, 2014
Customer
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||
| Periodic installments of principal and interest | 24 months | ||
| Provision for credit losses | $ 35,130 | $ (70,980) | |
| Inventory finance notes receivable, number of risk of loss customers | Customer | 6 | 5 | |
| Credit Concentration Risk [Member] | Allowance For Uncollectible Accounts [Member] | |||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||
| Inventory finance notes receivable, risk of loss | 80.00% | ||