Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended				6 Months Ended		12 Months Ended
	Feb. 28, 2023	Nov. 30, 2022	Feb. 28, 2022	Nov. 30, 2021	Feb. 28, 2023	Feb. 28, 2022	Aug. 31, 2022	Aug. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (545)	$ (509)	$ (152)	$ (525)	$ (1,054)	$ (677)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization					626	438
Stock-based compensation expense					240	197
Provisions for inventory write-downs	196		185		374	416
Gain on disposals of long-lived assets, net			(139)			(139)
Loss on disposals of patent						10
Changes in :
Accounts receivable					352	(299)
Inventories					(864)	(848)
Prepaid expenses and other					(23)	59
Accounts payable					217	259
Accrued expenses and other current liabilities					47	(447)
Net cash used in operating activities					(85)	(1,031)	$ (1,500)	$ (1,700)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property, plant and equipment					(83)	(49)
Proceeds from sales of property, plant and equipment						139
Payments for development of intangible assets					(9)	(6)
Net cash (used in) provided by investing activities					(92)	84
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayments of long-term debt					(240)	(260)
Net cash used in financing activities					(240)	(260)
Effect of exchange rate changes on cash and cash equivalents and restricted cash					1	84
NET DECREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH					(416)	(1,123)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH—Beginning of period		$ 4,452		$ 5,028	4,452	5,028	5,028
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH—End of period	$ 4,036		$ 3,905		4,036	3,905	$ 4,452	$ 5,028
NONCASH INVESTING AND FINANCING ACTIVITIES:
Accrual related to property, plant and equipment					$ 53	$ 18