Consolidated Statements of Operations (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Jul. 31, 2012	Jul. 31, 2011
REVENUE
Products	$ 18,368	$ 18,583
Services	4,129	4,833
Net revenue	22,497	23,416
COST OF REVENUE
Products	14,099	14,520
Services	2,286	2,589
Cost of revenue	16,385	17,109
Gross profit	6,112	6,307
OPERATING EXPENSE
Selling, general and administrative	4,936	5,750
Research and development	459	483
Asset impairment		916
Other	25	50
Total operating expense	5,420	7,199
Income (loss) from operations	692	(892)
OTHER INCOME (EXPENSE)
Interest expense, net	(160)	(219)
Total other expense	(160)	(219)
Income (loss) before income taxes and discontinued operations	532	(1,111)
Income tax expense	20	54
Net income (loss) from continuing operations	512	(1,165)
DISCONTINUED OPERATIONS
Loss from discontinued operations		(125)
Net income (loss)	512	(1,290)
Less: Net income attributable to the noncontrolling interest	48	90
Net income (loss) attributable to common shareholders	$ 464	$ (1,380)
Weighted average shares outstanding:
Basic	2,873	2,860
Diluted	2,873	2,860
Basic and diluted income (loss) per share
Continuing operations	$ 0.16	$ (0.44)
Discontinued operations		$ (0.04)
Total	$ 0.16	$ (0.48)