Summary Basic and Diluted Earnings Per Share and Additional Income (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Numerator:
Net income (loss) for basic earnings per share	$ (663,930)	$ (5,527,908)	$ (3,287,026)	$ (8,679,909)
Additions:
Interest expense related to convertible debentures	19,941	0	2,425
Amortization of deferred debt costs and original issue discount	200,503	461,289	391,072	604,861
Discounts on warrants and derivative debt	67,738	0
Subtractions:
(Gain) loss on extinguishment of debt	(13,807)	0	16,989	0
Change in fair value of derivative securites	(461,596)	0	(109,005)
Net loss for diluted earnings per share	(1,042,263)	(5,527,908)	(3,362,810)	(8,679,909)
Denominator:
Weighted average basic shares outstanding	158,843,541	108,041,084	157,152,228	108,041,084
Additions:
Assumed conversion of convertible debentures at beginning of period	9,838,907	0	2,204,467	0
Assumed conversion of exchanged convertible debentures during the period	230,414	0	0	0
Subtractions:
Convertible debentures converted during the period	(936,214)	0	(1,822,035)	0
Potentially dilutive common shares	$ 9,133,107	$ 0	$ 382,432	$ 0
Denoninator for diluted earnings per share - Adjusted weighted average shares	167,976,648	108,041,084	157,534,660	108,041,084
Income (loss) per share
Basic	$ 0.00	$ (0.05)	$ (0.02)	$ (0.08)
Diluted	$ (0.01)	$ (0.05)	$ (0.02)	$ (0.08)