Effect on Consolidated Statement of Cash Flows (Detail) (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2011		Sep. 30, 2011		Dec. 31, 2011
Cash flow from operating activities:
Net income (loss)	$ (3,853,862)		$ (10,214,643)
Adjustments to reconcile net loss to net cash used in operating activities:
Loss on debt extinguishment			1,350,000
Change in fair value of derivative liabilities	2,327,601		1,968,040
Share-based compensation			2,839,932
Net cash used in operating activities			(4,095,828)
Scenario, Previously Reported [Member]
Cash flow from operating activities:
Net income (loss)	(4,098,390)		(8,974,168)
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization of convertible debt discount			589,830
Loss on debt extinguishment
Change in fair value of derivative liabilities	2,396,300		2,396,300
Share-based compensation			3,026,954
Net cash used in operating activities			(4,095,828)
Restatement Adjustment [Member]
Cash flow from operating activities:
Net income (loss)	244,528		(1,240,475)
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization of convertible debt discount			(291,428)	[1]
Loss on debt extinguishment			1,350,000	[2]
Change in fair value of derivative liabilities	(68,699)	[3]	(428,260)	[3]
Share-based compensation			(187,022)	[4]
Net cash used in operating activities
Restatement Adjustment [Member] | Bonus Warrants
Adjustments to reconcile net loss to net cash used in operating activities:
Change in fair value of derivative liabilities			797,185	[5]
Restatement Adjustment [Member] | Warrant
Adjustments to reconcile net loss to net cash used in operating activities:
Change in fair value of derivative liabilities			$ (428,260)	[3]

[1] to reverse the improper amortization of debt discount.

[2] to record the difference between the reacquisition price of the new debt and the net carrying amount of the extinguished debt at the amendment date.

[3] to recognize the gain on the change in the fair value of the derivative liability associated with the bonus warrants at period end.

[4] to reverse the impact of the improper recording of the fair value of the Bonus Warrants upon issuance.

[5] to record the fair value of the bonus warrants as of the amendment date as a component of the reacquisition price of the new debt.