Debt (Detail) (USD $)	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Convertible debt	$ 30,429,609	$ 19,963,662
Less debt discount	(5,075,218)	(2,173,559)
Subtotal - net of debt discount	25,354,391	17,790,103
Less current portion	1,069,087	185,347
Total - long term debt	13,677,111	11,030,913
8% convertible promissory notes due on august 2017
Debt Instrument [Line Items]
Convertible debt, due date	Aug. 01, 2017
Convertible debt	16,628,188	13,078,188
12% convertible revolving credit agreement
Debt Instrument [Line Items]
Convertible debt, due date	Dec. 31, 2015
Convertible debt	2,000,000	2,000,000
3% promissory note
Debt Instrument [Line Items]
Convertible debt, due date	Feb. 01, 2018
Convertible debt	301,421	385,474
4.25% Bank term loans
Debt Instrument [Line Items]
Convertible debt, due date	Nov. 15, 2018
Convertible debt	4,500,000	4,500,000
8% convertible promissory notes (2014)
Debt Instrument [Line Items]
Convertible debt, due date	Jun. 11, 2019
Convertible debt	2,000,000	0
12% Convertible Promissory Notes
Debt Instrument [Line Items]
Convertible debt, due date	Mar. 31, 2015
Convertible debt	1,000,000	0
5% Bank Promissory Note
Debt Instrument [Line Items]
Convertible debt, due date	Sep. 18, 2017
Convertible debt	$ 4,000,000	$ 0