Accrued Liabilities (Details) (USD $)	Dec. 29, 2012	Dec. 31, 2011
Accrued Liabilities
Accrued salaries, wages, commissions and bonuses	$ 516,900	$ 483,200
Accrued vacation	211,200	205,100
Accrued interest	27,000	19,400
Other	531,200	638,300
Accrued liabilities	$ 1,286,300	$ 1,346,000

Carrying value as of the balance sheet date of obligations incurred and payable for unused vacation time owed to employees based on the entity's vacation benefit given to its employees. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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