Accounts Payable and Accrued Expenses (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Accounts Payable And Accrued Expenses
Trade payables	$ 14,619,000	$ 16,226,000
Sales commissions payable	5,535,000	5,549,000
Sales tax payable	1,335,000	3,295,000
Accrued MWCC center closure costs	1,361,000	0
Accrued payroll and related taxes	3,930,000	3,151,000
Total	$ 26,780,000	$ 28,221,000

Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for sales commissions. 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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