Convertible Debentures (Convertible Debenture Activity) (Details) (Convertible Debentures [Member], USD $) In Thousands, unless otherwise specified	0 Months Ended	1 Months Ended	3 Months Ended		9 Months Ended
	Jun. 12, 2013	Dec. 31, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Convertible Debentures [Roll Forward]
Gross balance, beginning balance			$ 6,487	$ 17,721	$ 18,328	$ 2,493
Less: Discounts, beginning balance			(906)	(2,631)	(2,440)	(529)
Convertible debentures, net, beginning balance			5,581	15,090	15,888	1,964
Proceeds from convertible debentures, before allocations			0	0	0	14,664
Allocated to detachable warrants			0	0	0	(1,660)
Allocated to beneficial conversion feature			0	0	0	(140)
Allocated to conversion option liability			0	0	0	(467)
PIK interest	778
Isuance of common shares		(12,392)	(6,643)	0	(19,035)	0
Gross balance, ending balance			0	18,022	0	18,022
Less: Discounts, ending balance		(1,387)	0	(2,538)	0	(2,538)
Convertible debentures, net, ending balance			0	15,484	0	15,484
Interest Expense [Member]
Convertible Debentures [Roll Forward]
PIK interest			156	301	707	865
Amortization of debt discount			43	93	190	258
Recognition of unamortized debt discount upon conversion				$ 0	$ 2,250	$ 0