Balances of Debentures (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Balance at beginning of period	$ 1,129,473	$ 0
Issuance of debentures for cash	2,122,000	3,186,000
Original issue discount	111,685	167,685
Debentures surrendered in exchange transactions	(564,213)	0
Debentures issued in exchange transactions	626,368	0
Debentures converted to common stock	(473,684)	(2,224,212)
Convertible debt	2,951,629	1,129,473
Less unamortized costs of financing	644,518	520,851
Convertible debt, net of unamortized costs	2,307,111	608,622
Convertible debt in default	$ 1,324,212	$ 0