Balance Sheet Components

9 Months Ended

May 31, 2022

Disclosure Text Block Supplement [Abstract]

Balance Sheet Components

3. Balance Sheet Components

Inventories

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

	May 31,		August 31,
	2022		2021
Raw materials	$	552	$	564
Work in process		1,227		1,217
Finished goods		2,316		2,156
Total	$	4,095	$	3,937

Inventory write-downs to estimated net realizable values were $176 thousand and $592 thousand for the three and nine months ended May 31, 2022, respectively, and $159 thousand and $555 thousand for the three and nine months ended May 31, 2021, respectively.

Property, Plant and Equipment

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

	May 31,			August 31,
	2022			2021
Buildings and improvements	$	14,329		$	14,997
Machinery and equipment		29,147			34,421
Leasehold improvements		169			176
Other equipment		2,410			2,547
Construction in progress		11			—
Total property, plant and equipment		46,066			52,141
Less: Accumulated depreciation and amortization		(41,583	)		(46,897	)
Property, plant and equipment, net	$	4,483		$	5,244

Intangible Assets

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

	May 31, 2022
	Weighted
	Average		Gross				Net
	Amortization		Carrying		Accumulated		Carrying
	Period (Years)		Amount		Amortization		Amount
Patents and trademarks		15	$	601	$	496	$	105
Acquired technology		5		350		350		—
Total			$	951	$	846	$	105

	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