Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
Nov. 30, 2014	Nov. 30, 2013
Operating activities:
Net income	$ 395us-gaap_NetIncomeLoss	$ 1,064us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash (used in) operating activities:
Depreciation and amortization	132	148
Bad debt expense	31us-gaap_ProvisionForDoubtfulAccounts	142us-gaap_ProvisionForDoubtfulAccounts
Change in inventory reserve	11us-gaap_InventoryWriteDown	14us-gaap_InventoryWriteDown
Gain on sale of property	0us-gaap_GainLossOnSaleOfProperty	(535)us-gaap_GainLossOnSaleOfProperty
Net loss (gain) on investments	43us-gaap_GainOnSaleOfInvestments	(91)us-gaap_GainOnSaleOfInvestments
(Increase) decrease in:
Trade accounts receivable	860	(910)
Inventory	(530)us-gaap_IncreaseDecreaseInInventories	(235)us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other assets	(40)	141
Deferred tax asset	0	(100)
Increase (decrease) in:
Trade accounts payable	(262)	346
Accrued expenses and other current liabilities	(1,716)	(428)
Deposit liability	0	(24)
Liabilities of discontinued operations	(16)	(54)
Net cash (used in) operating activities	(1,092)	(522)
Investing activities:
Purchase of property and equipment	(133)	(252)
Proceeds from sale of marketable securities, trading	30	1,041
Net change in securities sold short	1,795	1,519
Proceeds from sale of property	0	1,139
Increase in restricted cash	(1,795)	(1,519)
Net cash (used in) provided by investing activities	(103)	1,928
Financing activities:
Borrowings (payments) on revolving credit facility	636	(67)
Payment of preferred dividend	(19)	(19)
Proceeds from bank overdraft	1,169us-gaap_ProceedsFromBankDebt	343us-gaap_ProceedsFromBankDebt
Payments on long-term debt - real estate held for sale	0	(452)
Payments on long-term debt	(2)us-gaap_RepaymentsOfLongTermDebt	0us-gaap_RepaymentsOfLongTermDebt
Net cash provided by (used in) financing activities	1,784	(195)
Effect of foreign currency exchange rate changes on cash and cash equivalents	(37)	70
Net increase in cash and cash equivalents	552	1,281
Cash and cash equivalents - beginning of period	3,480	1,507
Cash and cash equivalents - end of period	4,032	2,788
Supplemental disclosures of cash flow information:
Cash paid for interest	0us-gaap_InterestPaid	100us-gaap_InterestPaid
Cash paid for taxes	$ 1,342us-gaap_IncomeTaxesPaid	$ 674us-gaap_IncomeTaxesPaid

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Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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