Balance Sheet Components (Tables)

3 Months Ended

Nov. 30, 2017

Disclosure Text Block Supplement [Abstract]

Schedule of inventories

Inventories as of November 30, 2017 and August 31, 2017 consisted of the following (in thousands):

	November 30,		August 31,
	2017		2017
Raw materials	$	907	$	885
Work in process		595		758
Finished goods		1,112		1,303
Total	$	2,614	$	2,946

Schedule of property, plant and equipment

Property, plant and equipment as of November 30, 2017 and August 31, 2017 consisted of the following (in thousands):

	November 30,			August 31,
	2017			2017
Buildings and improvements	$	13,979		$	13,891
Machinery and equipment		42,845			42,562
Leasehold improvements		240			238
Other equipment		2,324			2,311
Construction in progress		304			321
Total property, plant and equipment		59,692			59,323
Less: Accumulated depreciation and amortization		(51,593	)		(51,048	)
Property, plant and equipment, net	$	8,099		$	8,275

Schedule of intangible assets

Intangible assets as of November 30, 2017 and August 31, 2017 consisted of the following (in thousands):

	November 30, 2017
	Weighted
	Average		Gross				Net
	Amortization		Carrying		Accumulated		Carrying
	Period (Years)		Amount		Amortization		Amount
Patents and trademarks		15	$	556	$	447	$	109
Acquired technology		5		506		506		—
Total			$	1,062	$	953	$	109

	August 31, 2017
	Weighted
	Average		Gross				Net
	Amortization		Carrying		Accumulated		Carrying
	Period (Years)		Amount		Amortization		Amount
Patents and trademarks		15	$	574	$	470	$	104
Acquired technology		5		503		503		—
Total			$	1,077	$	973	$	104