Accounts Payable and Accrued Liabilities (Tables)

12 Months Ended

Dec. 03, 2011

Payables and Accruals [Abstract]

Schedule of Accounts Payable and Accrued Liabilities [Table Text Block]

Accounts payable and accrued liabilities at November 30, 2011 and 2010 were as follows:

	2011		2010
Accounts payable	$	64,701	$	64,630
Accrued salaries, wages and commissions	24,760		31,497
Compensated absences	8,530		8,172
Accrued insurance liabilities	9,017		11,473
Customer deposits	8,727		7,732
Other accrued liabilities	39,850		36,702
	$	155,585	$	160,206

Schedule of Product Warranty Liability [Table Text Block]

Changes in the Company’s warranty accrual, which is included in Other accrued liabilities, for the years ended November 30, 2011, 2010 and 2009 are as follows:

	2011			2010			2009
Warranty accrual at beginning of period	$	3,499		$	3,989		$	2,494
Accruals for warranties issued during the period	622			825			2,324
Adjustments related to pre-existing warranties	(846		)	(308		)	39
Settlements made during the period	(316		)	(856		)	(965		)
Other adjustments, including currency translation	(379		)	(151		)	97
Warranty accrual at end of period	$	2,580		$	3,499		$	3,989