Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended				6 Months Ended		12 Months Ended
	Feb. 28, 2022	Nov. 30, 2021	Feb. 28, 2021	Nov. 30, 2020	Feb. 28, 2022	Feb. 28, 2021	Aug. 31, 2021	Aug. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (152)	$ (525)	$ (254)	$ (707)	$ (677)	$ (961)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization					438	443
Stock-based compensation expense					197	87
Provisions for inventory write-downs	185		200		416	396
Gain on disposals of long-lived assets, net	(139)		(207)		(139)	(284)
Loss on disposals of patent					10
Changes in :
Accounts receivable					(299)	810
Inventories					(848)	(725)
Prepaid expenses and other					59	68
Accounts payable					259	(119)
Accrued expenses and other current liabilities					(447)	(340)
Net cash used in operating activities					(1,031)	(625)	$ (1,700)	$ (1,000)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment					(49)	(97)
Proceeds from sales of property, plant and equipment					139	284
Payments for development of intangible assets					(6)	(10)
Net cash provided by investing activities					84	177
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of long-term debt					(260)
Acquisition of noncontrolling interests						(12)
Net cash used in financing activities					(260)	(12)
Effect of exchange rate changes on cash and cash equivalents and restricted cash					84	(275)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH					(1,123)	(735)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH—Beginning of period		$ 5,028		$ 3,012	5,028	3,012	3,012
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH—End of period	$ 3,905		$ 2,277		3,905	2,277	$ 5,028	$ 3,012
NONCASH INVESTING AND FINANCING ACTIVITIES:
Accrual related to property, plant and equipment					$ 18	$ 8