Stockholders' Equity (Tables)

12 Months Ended

Jul. 31, 2013

Equity [Abstract]

Summary Of Warrant Activity

	Shares
Outstanding at July 31, 2011	188,613
Issued	238,699
Exercised	0
Expired	0
Outstanding at July 31, 2012	427,312
Issued	1,080,187
Exercised	0
Expired	(73,378)
Outstanding at July 31, 2013	1,434,121

Summary Of Warrants Outstanding

Expiration	Exercise
Date	Price		Shares
05/07/14	$	16.50	11,363
05/27/14	$	18.96	45,503
05/27/14	$	21.12	5,532
03/03/15	$	16.80	52,836
01/13/16	$	3.52	81,280
06/26/16	$	0.50	41,667
07/10/16	$	0.50	50,000
10/17/16	$	0.65	250,000
10/24/16	$	0.65	250,000
12/14/16	$	3.61	25,000
12/24/16	$	3.28	132,420
09/17/17	$	1.38	113,520
01/24/18	$	0.83	375,000
			1,434,121

Summary Of Stock Option Activity

		Weighted-		Aggregate
		Average		Intrinsic
	Shares	Exercise Price		Value
Outstanding at July 31, 2011	337,526	$	21.02	$	30,000
Granted	40,625	$	6.68
Exercised	0	$	0
Cancelled	(29,688)	$	22.05
Outstanding at July 31, 2012	348,463	$	19.26	$	0
Granted	273,000	$	0.83
Exercised	0	$	0
Cancelled	(177,708)	$	15.28
Outstanding at July 31, 2013	443,755	$	9.52	$	0

Summary Of Restricted Stock Activity

	Shares
Outstanding at July 31, 2011	4,986
Granted	6,852
Vested	(4,986)
Forfeited	0
Outstanding at July 31, 2012	6,852
Granted	0
Vested	(6,852)
Forfeited	0
Outstanding at July 31, 2013	0