Accrued Expenses and Other Current Liabilities (Tables)

3 Months Ended

Oct. 31, 2011

Accrued Expenses and Other Current Liabilities [Abstract]

Accrued Expenses And Other Current Liabilities

	October 31, 2011	July 31, 2011
Accrued wages and benefits	$       12,248,000	19,751,000
Accrued warranty obligations	9,283,000	9,120,000
Accrued commissions and royalties	4,559,000	3,295,000
Accrued business acquisition payments	913,000	726,000
Other	16,570,000	16,966,000
Accrued expenses and other current liabilities	$       43,573,000	49,858,000

Product warranty rollforward

	October 31, 2011	October 31, 2010
Balance at beginning of period	$        9,120,000	10,562,000
Provision for warranty obligations	1,624,000	1,799,000
Reversal of warranty liability	-	(525,000)
Charges incurred	(1,461,000)	(1,946,000)
Balance at end of period	$        9,283,000	9,890,000