CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 31, 2013	Jul. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 222	$ 512
Adjustments to reconcile net income to net cash provided by operating activities:
Loss on sale of discontinued operations	286	0
Stock-based compensation expense	4	7
Depreciation and amortization	134	105
Provision for doubtful trade accounts receivable	23	46
Provision for obsolete inventory	40	119
Loss (gain) on disposal of fixed assets	3	(2)
Imputed interest expense on notes payable	(306)	158
Other	0	(5)
Changes in net assets and liabilities, net of effects of business acquisition
Trade accounts receivable	(126)	759
Inventories	(191)	136
Prepaid and other assets	174	(155)
Trade accounts payable	238	(601)
Accrued expenses and other	(388)	(77)
Net cash provided by operating activities	113	1,002
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of property and equipment	(288)	(232)
Net cash used in investing activities	(288)	(232)
CASH FLOWS FROM FINANCING ACTIVITIES:
Repayment of note payable	(210)	(168)
Proceeds from sale of treasury stock	1	0
Proceeds from employee stock purchase plan	0	18
Net cash used in financing activities	(209)	(150)
Net increase (decrease) in cash and cash equivalents	(384)	620
Cash and cash equivalents, beginning of period	2,162	1,542
Cash and cash equivalents, end of period	1,778	2,162
Non cash investing and financing activity:
Note payable for purchase of equipment	0	111
Receivable from sale of business	48	0
Supplemental cash flow information:
Income taxes paid	$ 12	$ 60