CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Apr. 30, 2012
REVENUE
Products	$ 4,179	$ 3,922	$ 13,231	$ 13,654
Services	923	1,039	2,846	3,210
Net revenue	5,102	4,961	16,077	16,864
COST OF REVENUE
Products	3,232	3,182	10,429	10,784
Services	462	522	1,438	1,484
Cost of revenue	3,694	3,704	11,867	12,268
Gross profit	1,408	1,257	4,210	4,596
OPERATING EXPENSE
Selling, general and administrative	1,249	1,193	3,853	3,805
Research and development	63	149	268	361
Other operating expense (income), net	5	3	43	(14)
Total operating expense	1,317	1,345	4,164	4,152
Income (loss) from operations	91	(88)	46	444
OTHER INCOME (EXPENSE)
Interest income (expense), net	(113)	(20)	168	(102)
Total other income (expense)	(113)	(20)	168	(102)
Income (loss) before income taxes	(22)	(108)	214	342
Income tax expense (benefit)	6	(4)	13	14
Net income (loss)	(28)	(104)	201	328
Less: Net income (loss) attributable to noncontrolling interest	30	(57)	88	24
Net income (loss) attributable to common shareholders	(58)	(47)	113	304
COMPREHENSIVE INCOME
Net income (loss)	(58)	(47)	113	304
Realized gains on available-for-sale securities	0	0	0	5
Comprehensive income (loss)	$ (58)	$ (47)	$ 113	$ 309
Weighted average shares outstanding
Basic	2,877	2,874	2,877	2,871
Diluted	2,877	2,874	2,877	2,871
Basic income (loss) per share	$ (0.02)	$ (0.02)	$ 0.04	$ 0.11
Diluted income (loss) per share	$ (0.02)	$ (0.02)	$ 0.04	$ 0.11