Property, Plant and Equipment (Tables)

12 Months Ended

Jul. 31, 2021

Property, Plant and Equipment [Abstract]

Schedule of property, plant, and equipment

	2021			2020
Building and building improvements	$	10,310		$	10,089
Machinery and equipment (includes assets under finance leases - see Note 9)		12,721			8,548
Office furniture and computer equipment		15,942			16,578
Leasehold improvements		5,692			5,377
		44,665			40,592
Accumulated depreciation and amortization		(30,142	)		(28,172	)
		14,523			12,420
Land and land improvements		2,062			2,062
	$	16,585		$	14,482