Supplemental Cash Flow Information (Tables)

12 Months Ended

Jan. 31, 2012

Supplemental Cash Flow Elements [Abstract]

Schedule of supplemental cash flow information

	For the years ended January 31
	2012			2011			2010
Changes in operating assets and liabilities:
Accounts receivable	$	(15,569	)	$	(5,536	)	$	6,325
Inventories	(11,528		)	(9,189		)	1,552
Prepaid expenses and other assets	(291		)	96			(49		)
Accounts payable	(233		)	2,713			2,934
Accrued and other liabilities	4,578			4,428			(520		)
Customer advances	(33		)	215			693
	$	(23,076	)	$	(7,273	)	$	10,935
Cash paid during the year for income taxes	$	16,782		$	19,700		$	13,816
Significant non-cash transactions:
Capital expenditures included in accounts payable	$	984		$	2,181		$	474