SELECTED BALANCE SHEET INFORMATION

Following are the components of selected items from the Consolidated Balance Sheets:




	July 31, 2013			January 31, 2013			July 31, 2012
Accounts receivable, net:
Trade accounts	$	49,404		$	56,508		$	50,055
Allowance for doubtful accounts	(205		)	(205		)	(170		)
	$	49,199		$	56,303		$	49,885
Inventories:
Finished goods	$	7,980		$	8,571		$	7,394
In process	2,562			2,675			4,979
Materials	43,820			34,943			38,016
	$	54,362		$	46,189		$	50,389
Property, plant and equipment, net:
Property, plant and equipment	$	171,392		$	156,658		$	145,433
Accumulated depreciation	(81,127		)	(75,420		)	(72,244		)
	$	90,265		$	81,238		$	73,189
Accrued liabilities:
Salaries and benefits	$	2,391		$	4,265		$	3,605
Vacation	4,171			4,025			4,155
401(k) contributions	417			520			611
Insurance obligations	2,321			2,506			3,003
Warranties	2,047			1,888			1,949
Acquisition-related contingent liabilities	594			712			7,028
Taxes - accrued and withheld	1,900			1,392			1,999
Other	1,450			1,884			1,621
	$	15,291		$	17,192		$	23,971
Other liabilities:
Postretirement benefits	$	8,208		$	8,072		$	7,520
Acquisition-related contingent consideration	2,196			2,359			2,108
Deferred income taxes	2,357			2,453			3,919
Uncertain tax positions	6,202			5,818			5,657
	$	18,963		$	18,702		$	19,204