STOCKHOLDERS' EQUITY (Tables)

6 Months Ended

Jun. 30, 2014

Stockholders' Equity Note [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

The following table summarizes stock option activity for the six months ended June 30, 2014:

	Number of shares	Weighted- average exercise price		Weighted- average Contractual Term	Aggregate Intrinsic Value
				(in years)
Outstanding at December 31, 2013	46,591	$	46.37	8.50	$	—
Granted	—		—
Exercised	—		—
Forfeited	—		—
Expired	(359)		4,640.63
Outstanding at June 30, 2014	46,232	$	10.70	8.07	$	229,540

Vested and expected to vest at June 30, 2014	37,232	$	12.22	8.07	$	184,630
Exercisable at June 30, 2014	37,232	$	12.22	8.07	$	184,630

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

The following table summarizes restricted share activity for the six months ended June 30, 2014:

	Number of Shares	Weighted Average Grant Date Fair Value
Outstanding at December 31, 2013	7,034,957	$	4.60
Granted	297,690		8.14
Vested	(502,124)		6.88
Forfeited	—		—
Outstanding at June 30, 2014	6,830,523	$	4.65

Schedule Of Warrants Activity [Table Text Block]

The following table summarizes warrant activity for the six months ended June 30, 2014:

	Warrants	Weighted- average exercise price		Aggregate Intrinsic Value
Outstanding at December 31, 2013	5,718,947	$	1.34	$	14,809,030
Issued	—		—
Exercised	(700,230)		2.29
Expired	(9,795)		20.92
Outstanding at June 30, 2014	5,008,922	$	1.17	$	41,163,640

Schedule Of Share Based Compensation Expense [Text Block]

The following table summarizes stock-based compensation expense information about stock options and restricted stock for the three and six months ended June 30, 2014:

	Three months ended June 30, 2014		Six months ended June 30, 2014
Stock-based compensation expense associated with restricted stock	$	7,486,336	$	11,717,774
Stock-based compensation expense associated with option grants		252,510		252,510
	$	7,738,846	$	11,970,284