CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2013	Jan. 31, 2012
REVENUE
Products	$ 4,244	$ 4,707	$ 9,052	$ 9,732
Services	997	966	1,923	2,171
Net revenue	5,241	5,673	10,975	11,903
COST OF REVENUE
Products	3,450	3,705	7,197	7,602
Services	504	357	976	962
Cost of revenue	3,954	4,062	8,173	8,564
Gross profit	1,287	1,611	2,802	3,339
OPERATING EXPENSE
Selling, general and administrative	1,312	1,337	2,604	2,612
Research and development	96	104	205	212
Other operating expense (income), net	24	(8)	38	(17)
Total operating expense	1,432	1,433	2,847	2,807
Income (loss) from operations	(145)	178	(45)	532
OTHER INCOME
Interest income (expense), net	239	(94)	281	(82)
Total other income (expense)	239	(94)	281	(82)
Income before income taxes	94	84	236	450
Income tax expense		10	7	18
Net income	94	74	229	432
Less: Net income attributable to noncontrolling interest	11	69	58	81
Net income	83	5	171	351
COMPREHENSIVE INCOME
Net income	83	5	171	351
Realized gains on available-for-sale securities				5
Comprehensive income	$ 83	$ 5	$ 171	$ 356
Weighted average shares outstanding
Basic	2,877	2,870	2,877	2,869
Diluted	2,877	2,870	2,877	2,869
Basic income per share	$ 0.03		$ 0.06	$ 0.12
Diluted income per share	$ 0.03		$ 0.06	$ 0.12