Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	May 31, 2021	May 31, 2020
Operating activities:
Net income	$ 5,325	$ 6,270
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	1,136	860
Bad debt expense	62	33
Loss on sale of real property		130
Net loss (gain) on trading securities	863	(775)
(Increase) decrease in:
Trade accounts receivable	(3,239)	2,971
Inventory	(861)	(4,538)
Prepaid expenses and other assets	1,568	51
Operating lease right-of-use assets	1,400	(12,428)
Increase (decrease) in:
Trade accounts payable	2,895	(3,781)
Accrued expenses and other current liabilities	(1,291)	(2,309)
Operating lease liabilities	(1,454)	12,562
Net cash provided by (used in) operating activities	6,404	(954)
Investing activities:
Purchase of property, equipment, and leasehold improvements	(757)	(6,032)
Proceeds from sale of real property		7,075
Net (purchases) sales of marketable securities, trading	(4,419)	2,648
Net change in liabilities for short sales of trading securities	(2,916)	(586)
Net cash (used in) provided by investing activities	(8,092)	3,105
Financing activities:
(Repayment) borrowings on revolving credit facility, net	(5,100)	1,042
Borrowings on construction loan		4,545
Repayments on long-term debt	(82)	(5,125)
Preferred stock dividend	(57)	(57)
Net change in bank overdraft	144	(433)
Net cash used in financing activities	(5,095)	(28)
Effect of foreign currency exchange rate changes on cash and cash equivalents	223	(219)
Net (decrease) increase in cash, cash equivalents, and restricted cash	(6,560)	1,904
Cash, cash equivalents, and restricted cash - beginning of period	8,995	5,347
Cash, cash equivalents, and restricted cash - end of period	2,435	7,251
Supplemental disclosures of cash flow information:
Cash paid for interest	172	246
Cash paid for income taxes	$ 2,509	$ 3,405