Business Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jan. 31, 2013		Jan. 31, 2012		Jan. 31, 2013		Jan. 31, 2012		Jul. 31, 2012
Net revenue	$ 7,478		$ 5,501		$ 13,420		$ 10,911
Cost of revenue	1,721		1,251		3,129		2,387
Operating expense	6,323		4,080		10,554		7,858
Interest expense	269		59		337		121
Other expense (income)	(4)		(11)		(8)		(17)
Income (loss) from continuing operations before provision for income taxes	(831)		122		(592)		562
Total assets	31,356				31,356				20,509
Interest rate on intercompany loan	4.25%		8.00%		4.25%		8.00%
UNITED STATES [Member]
Cost of revenue	1,688		1,222		3,074		2,343
Operating expense	6,179		3,970		10,271		7,623
Interest expense	269		59		337		121
Other expense (income)	(40)		(45)		(61)		(91)
Income (loss) from continuing operations before provision for income taxes	(738)		168		(425)		655
Total assets	32,993				32,993				21,800
NETHERLANDS [Member]
Cost of revenue	94		105		194		202
Operating expense	144		110		283		235
Interest expense	36		35		53		75
Other expense (income)			(1)				(1)
Income (loss) from continuing operations before provision for income taxes	(93)		(46)		(167)		(93)
Total assets	192				192				258
Eliminations [Member]
Cost of revenue	(61)	[1]	(76)	[1]	(139)		(158)	[1]
Interest expense	(36)	[2]	(35)	[3]	(53)		(75)	[3]
Other expense (income)	36	[2]	35	[3]	53		75	[3]
Total assets	(1,829)				(1,829)				(1,549)	[4]
External Customers [Member]
Net revenue	7,478		5,501		13,420		10,911
External Customers [Member] | UNITED STATES [Member]
Net revenue	7,304		5,306		13,071		10,511
External Customers [Member] | NETHERLANDS [Member]
Net revenue	174		195		349		400
Intercompany [Member] | UNITED STATES [Member]
Net revenue	54		68		125		140
Intercompany [Member] | NETHERLANDS [Member]
Net revenue	7		8		14		18
Intercompany [Member] | Eliminations [Member]
Net revenue	$ (61)	[1]	$ (76)	[1]	$ (139)	[4]	$ (158)	[1]

[1] The Netherlands segment charges the United States segment for customer support services and the United States segment charges the Netherlands segment for software royalties.

[2] The United States segment charges the Netherlands segment for interest on the intercompany loan at a rate of 4.25%.

[3] The United States segment charges the Netherlands segment for interest on the intercompany loan at a rate of 8%.

[4] Net intercompany loan due from the Netherlands.