Balance Sheet Components (Tables)

6 Months Ended

Feb. 28, 2022

Disclosure Text Block Supplement [Abstract]

Schedule of inventories

Inventories as of February 28, 2022 and August 31, 2021 consisted of the following (in thousands):

	February 28,		August 31,
	2022		2021
Raw materials	$	752	$	564
Work in process		1,204		1,217
Finished goods		2,375		2,156
Total	$	4,331	$	3,937

Schedule of property, plant and equipment

Property, plant and equipment as of February 28, 2022 and August 31, 2021 consisted of the following (in thousands):

	February 28,			August 31,
	2022			2021
Buildings and improvements	$	14,850		$	14,997
Machinery and equipment		33,918			34,421
Leasehold improvements		175			176
Other equipment		2,521			2,547
Construction in progress		11			—
Total property, plant and equipment		51,475			52,141
Less: Accumulated depreciation and amortization		(46,663	)		(46,897	)
Property, plant and equipment, net	$	4,812		$	5,244

Schedule of intangible assets

Intangible assets as of February 28, 2022 and August 31, 2021 consisted of the following (in thousands):

	February 28, 2022
	Weighted
	Average		Gross				Net
	Amortization		Carrying		Accumulated		Carrying
	Period (Years)		Amount		Amortization		Amount
Patents and trademarks		15	$	621	$	509	$	112
Acquired technology		5		363		363		—
Total			$	984	$	872	$	112

	August 31, 2021
	Weighted
	Average		Gross				Net
	Amortization		Carrying		Accumulated		Carrying
	Period (Years)		Amount		Amortization		Amount
Patents and trademarks		15	$	627	$	501	$	126
Acquired technology		5		367		367		—
Total			$	994	$	868	$	126