Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Operating activities:
Net income	$ 2,245	$ 4,515
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	751	506
Bad debt expense	55	14
Loss on sale of real property		102
Net loss (gain) on trading securities	1,059	(391)
(Increase) decrease in:
Trade accounts receivable	866	931
Inventory	(635)	(2,852)
Prepaid expenses and other assets	1,298	(958)
Operating lease right-of-use assets	847
Increase (decrease) in:
Trade accounts payable	561	(2,243)
Accrued expenses and other current liabilities	(2,579)	(3,245)
Operating lease liabilities	(928)
Net cash provided by (used in) operating activities	3,540	(3,621)
Investing activities:
Purchase of property, equipment, and leasehold improvements	(290)	(4,591)
Proceeds from sale of real property		7,075
Net (purchases) sales of marketable securities, trading	(3,846)	1,370
Net change in liabilities for short sales of trading securities	(1,622)	1,731
Net cash (used in) provided by investing activities	(5,758)	5,585
Financing activities:
(Repayment) borrowings on revolving credit facility, net	(5,100)	3,192
Borrowings on Construction Loan		3,342
Repayments on long-term debt	(53)	(5,125)
Preferred stock dividend	(38)	(38)
Net change in bank overdraft	2,526	(147)
Net cash (used in) provided by financing activities	(2,665)	1,224
Effect of foreign currency exchange rate changes on cash and cash equivalents	9	(249)
Net (decrease) increase in cash, cash equivalents, and restricted cash	(4,874)	2,939
Cash, cash equivalents, and restricted cash - beginning of period	8,995	5,347
Cash, cash equivalents, and restricted cash - end of period	4,121	8,286
Supplemental disclosures of cash flow information:
Cash paid for interest	121	17
Cash paid for income taxes	$ 2,509	$ 3,395