Accrued Expenses and Other Current Liabilities (Tables)

3 Months Ended

Oct. 31, 2021

Payables and Accruals [Abstract]

Accrued expenses and other current liabilities

Accrued expenses and other current liabilities consist of the following at:

	October 31, 2021		July 31, 2021
Accrued wages and benefits	$	23,599,000	26,367,000
Accrued warranty obligations	16,889,000		17,600,000
Accrued contract costs	13,682,000		12,750,000
Accrued acquisition-related costs	8,969,000		9,222,000
Accrued commissions and royalties	4,589,000		5,342,000
Accrued legal costs	2,596,000		2,854,000
Other	17,665,000		15,466,000
Accrued expenses and other current liabilities	$	87,989,000	89,601,000

Product warranty rollforward

Changes in our accrued warranty obligations during the three months ended October 31, 2021 and 2020 were as follows:

	Three months ended October 31,
	2021		2020
Balance at beginning of period	$	17,600,000	15,200,000
Provision for warranty obligations	271,000		1,845,000
Charges incurred	(982,000)		(849,000)
Balance at end of period	$	16,889,000	16,196,000