Balance Sheet Components

3 Months Ended

Nov. 30, 2020

Disclosure Text Block Supplement [Abstract]

3. Balance Sheet Components

Inventories

Inventories as of November 30, 2020 and August 31, 2020 consisted of the following (in thousands):

	November 30,		August 31,
	2020		2020
Raw materials	$	383	$	433
Work in process		936		792
Finished goods		1,446		1,251
Total	$	2,765	$	2,476

Inventory write-downs to estimated net realizable values were $196 thousand and $119 thousand for the three months ended November 30, 2020 and 2019, respectively.

Property, Plant and Equipment

Property, plant and equipment as of November 30, 2020 and August 31, 2020 consisted of the following (in thousands):

	November 30,			August 31,
	2020			2020
Buildings and improvements	$	14,441		$	14,104
Machinery and equipment		34,520			33,977
Leasehold improvements		170			166
Other equipment		2,476			2,384
Construction in progress		9			7
Total property, plant and equipment		51,616			50,638
Less: Accumulated depreciation and amortization		(45,995	)		(44,993	)
Property, plant and equipment, net	$	5,621		$	5,645

Intangible Assets

Intangible assets as of November 30, 2020 and August 31, 2020 consisted of the following (in thousands):

	November 30, 2020
	Weighted
	Average		Gross				Net
	Amortization		Carrying		Accumulated		Carrying
	Period (Years)		Amount		Amortization		Amount
Patents and trademarks		15	$	562	$	474	$	88
Acquired technology		5		353		353		—
Total			$	915	$	827	$	88

	August 31, 2020
	Weighted
	Average		Gross				Net
	Amortization		Carrying		Accumulated		Carrying
	Period (Years)		Amount		Amortization		Amount
Patents and trademarks		15	$	550	$	461	$	89
Acquired technology		5		345		345		—
Total			$	895	$	806	$	89