Common Stock (Summary Of Warrants Outstanding) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2012
Class of Warrant or Right [Line Items]
Warrants outstanding	17,975
2013	8,400
2014	4,913
2015	4,662
$0.54 [Member]
Class of Warrant or Right [Line Items]
Exercise price	0.54
Warrants outstanding	290
2014	290	[1]
$0.80 [Member]
Class of Warrant or Right [Line Items]
Exercise price	0.80
Warrants outstanding	4,662
2015	4,662
$1.00 [Member]
Class of Warrant or Right [Line Items]
Exercise price	1.00
Warrants outstanding	8,400
2013	8,400
$1.25 [Member]
Class of Warrant or Right [Line Items]
Exercise price	1.25
Warrants outstanding	4,623
2014	4,623

[1] During the first quarter of 2010, these warrants were granted to investors and placement agent in conjunction with the investors’ purchase of our common stock.