Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Aug. 31, 2019	Aug. 31, 2018
Operating activities:
Net income	$ 9,432	$ 6,949
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	1,047	1,009
Bad debt expense	340	106
Inventory write-downs	1,290	839
Net gain on trading securities	(427)	(273)
(Increase) decrease in:
Trade accounts receivable	(5,718)	(5,797)
Inventory	(8,018)	(4,883)
Prepaid expenses and other assets	(3,012)	(655)
Increase (decrease) in:
Trade accounts payable	3,313	4,009
Accrued expenses and other current liabilities	845	3,667
Net cash (used in) provided by operating activities	(908)	4,971
Investing activities:
Purchase of property, equipment and leasehold improvements	(1,772)	(1,600)
Net sales (purchases) of marketable securities, trading	1,400	(977)
Net change in liabilities for short sales of trading securities	(278)	226
Net cash used in investing activities	(650)	(2,351)
Financing activities:
Borrowings (payments) on revolving credit facility, net	3,153	(3,853)
Borrowings on construction loan	342	0
Repayments on long-term debt	(247)	(128)
Preferred stock dividend	(76)	(76)
Bank overdraft	147	317
Net cash provided by (used in) financing activities	3,319	(3,740)
Effect of foreign currency exchange rate changes on cash and cash equivalents	(52)	181
Net increase (decrease) in cash, cash equivalents, and restricted cash	1,709	(939)
Cash, cash equivalents and restricted cash - beginning of period	3,638	4,577
Cash, cash equivalents and restricted cash - end of period	5,347	3,638
Supplemental disclosures of cash flow information:
Cash paid for interest	475	466
Cash paid for income taxes	$ 3,107	$ 2,055