Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Operating activities:
Net income	$ 7,793,000	$ 9,432,000
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	1,224,000	1,047,000
Bad debt expense	72,000	340,000
Loss on sale of property	130,000
Net gain on trading securities	(912,000)	(427,000)
(Increase) decrease in:
Trade accounts receivable	1,916,000	(5,718,000)
Inventory	(2,286,000)	(6,728,000)
Prepaid expenses and other assets	(346,000)	(3,012,000)
Operating lease right-of-use assets	(11,512,000)
Increase (decrease) in:
Trade accounts payable	(3,275,000)	3,313,000
Accrued expenses and other current liabilities	(1,665,000)	845,000
Operating lease liabilities	11,644,000
Net cash provided by (used in) operating activities	2,783,000	(908,000)
Investing activities:
Additions to property, equipment, and leasehold improvements	(6,705,000)	(1,772,000)
Proceeds from sale of property	7,075,000
Sale of marketable securities, trading	1,417,000	1,400,000
Net change in liabilities for short sales of trading securities	2,261,000	(278,000)
Net cash provided by (used in) investing activities	4,048,000	(650,000)
Financing activities:
(Payments) borrowings on revolving credit facility, net	(1,014,000)	3,153,000
Borrowings on Construction Loan	4,448,000	342,000
Repayments on long-term debt	(5,125,000)	(247,000)
Preferred stock dividend	(76,000)	(76,000)
Bank overdraft	(1,328,000)	147,000
Net cash (used in) provided by financing activities	(3,095,000)	3,319,000
Effect of foreign currency exchange rate changes on cash and cash equivalents	(88,000)	(52,000)
Net increase in cash, cash equivalents, and restricted cash	3,648,000	1,709,000
Cash, cash equivalents, and restricted cash - beginning of period	5,347,000	3,638,000
Cash, cash equivalents, and restricted cash - end of period	8,995,000	5,347,000
Supplemental disclosures of cash flow information:
Cash paid for interest	291,000	475,000
Cash paid for income taxes	$ 3,405,000	$ 3,107,000