Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Nov. 30, 2016	Nov. 30, 2015
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (696)	$ (3,315)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	335	1,316
Stock-based compensation expense	83	42
Provisions for inventory write-downs	196	452
Equity in loss from unconsolidated entities	9	8
Gain on disposals of long-lived assets	(80)
Changes in:
Accounts receivable, net	(635)	50
Inventories	69	269
Prepaid expenses and other	(73)	(146)
Accounts payable	(79)	371
Accrued expenses and other current liabilities	(250)	390
Net cash used in operating activities	(1,121)	(563)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment	(68)	(341)
Payments for development of intangible assets	(1)	(20)
Proceeds from sale of investment	41
Net cash used in investing activities	(28)	(361)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of long-term debt	(79)	(437)
Net cash used in financing activities	(79)	(437)
Effect of exchange rate changes on cash and cash equivalents	25	22
NET DECREASE IN CASH AND CASH EQUIVALENTS	(1,203)	(1,339)
CASH AND CASH EQUIVALENTS—Beginning of period	6,030	4,808
CASH AND CASH EQUIVALENTS—End of period	4,827	3,469
NONCASH INVESTING AND FINANCING ACTIVITIES:
Accrual related to property, plant and equipment	$ 199	$ 260