Accrued Expenses and Other Current Liabilities (Tables)

9 Months Ended

Apr. 30, 2012

Accrued Expenses and Other Current Liabilities [Abstract]

Accrued Expenses And Other Current Liabilities

	April 30, 2012	July 31, 2011
Accrued wages and benefits	$    14,211,000	19,751,000
Accrued warranty obligations	8,011,000	9,120,000
Accrued commissions and royalties	4,594,000	3,295,000
Accrued business acquisition payments	1,164,000	726,000
Other	10,525,000	16,966,000
Accrued expenses and other current liabilities	$    38,505,000	49,858,000

Product warranty rollforward

	April 30, 2012	April 30, 2011
Balance at beginning of period	$     9,120,000	10,562,000
Provision for warranty obligations	4,077,000	5,976,000
Reversal of warranty liability	-	(1,120,000)
Charges incurred	(5,186,000)	(6,572,000)
Balance at end of period	$     8,011,000	8,846,000