Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 31, 2012	Jul. 31, 2011
Financial information for discontinued operations
Cash
Accounts receivable
Accounts receivable - related party
Inventories
Total current assets
Property and equipment, net
Total assets
Accrued expenses and other	18	18
Total liabilities	18	18
Net assets (liabilities) - discontinued operations	(18)	(18)
Revenue		34
Cost of revenues		145
Gross profit (loss)		(111)
Operating expenses		107
Other income		14
Total expense		121
Foreign currency translation adjustment		107
Net (loss)		$ (125)