Accrued Expenses and Other Current Liabilities (Tables)

6 Months Ended

Jan. 31, 2012

Accrued Expenses and Other Current Liabilities [Abstract]

Accrued Expenses And Other Current Liabilities

	January 31, 2012	July 31, 2011
Accrued wages and benefits	$   12,681,000	19,751,000
Accrued warranty obligations	8,852,000	9,120,000
Accrued commissions and royalties	4,093,000	3,295,000
Accrued business acquisition payments	1,070,000	726,000
Other	9,731,000	16,966,000
Accrued expenses and other current liabilities	$   36,427,000	49,858,000

Product warranty rollforward

	January 31, 2012	January 31, 2011
Balance at beginning of period	$     9,120,000	10,562,000
Provision for warranty obligations	3,194,000	3,680,000
Reversal of warranty liability	-	(525,000)
Charges incurred	(3,462,000)	(3,986,000)
Balance at end of period	$     8,852,000	9,731,000