Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	May 31, 2012	May 31, 2011
Operating activities:
Net income	$ 1,985	$ 1,754
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	638	585
Bad debt expense	111	29
Change in inventory reserve	(66)	(39)
Net gain on trading securities	(398)	(342)
(Increase) decrease in:
Trade accounts receivable	(1,656)	(826)
Inventory	(751)	(1,892)
Prepaid expenses and other assets	(3)	(167)
Deferred tax asset	867	(194)
Increase (decrease) in:
Trade accounts payable	759	(901)
Accrued expenses and other current liabilities	(287)	553
Liabilities of discontinued operations	(120)	(165)
Net cash provided by (used in) operating activities	1,079	(1,605)
Investing activities:
Purchase of property and equipment	(347)	(252)
Sale of marketable securities, trading	1,023	450
Short sales of marketable securities	637	0
Change in restricted cash	(553)	234
Net cash provided by investing activities	760	432
Financing activities:
Net borrowings on revolving credit facility	100	578
Bank overdraft	1,261	1,323
Payment of preferred dividend	(57)	0
Payments on long-term debt	(583)	(307)
Net cash provided by financing activities	721	1,594
Effect of foreign currency exchange rate changes on cash and cash equivalents	(72)	(20)
Net increase in cash and cash equivalents	2,488	401
Cash and cash equivalents - beginning of period	1,368	1,260
Cash and cash equivalents - end of period	3,856	1,661
Supplemental disclosures of cash flow information:
Cash paid for interest	564	580
Cash paid for taxes	$ 451	$ 159