STOCKHOLDERS' EQUITY (Tables)

9 Months Ended

Sep. 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 nine months ended September 30, 2014:

				Weighted-
		Weighted-		average	Aggregate
	Number	average		Contractual	Intrinsic
	of shares	exercise price		Term	Value
				(in years)
Outstanding at December 31, 2013	46,591	$	46.37	8.50	$	—
Granted	—		—
Exercised	(33,000)		4.40
Forfeited	—		—
Expired	(397)		4,457.57
Outstanding at September 30, 2014	13,194	$	18.62	7.78	$	81,510
Vested and expected to vest at September 30, 2014	4,194	$	49.14	7.65	$	25,080
Exercisable at September 30, 2014	4,194	$	49.14	7.65	$	25,080

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

The following table summarizes restricted share activity for the nine months ended September 30, 2014:

		Weighted
		Average
		Grant Date
	Number of Shares	Fair Value
Outstanding at December 31, 2013	7,034,957	$	4.60
Granted	310,690		8.28
Vested	(903,416)		7.34
Forfeited	—		—
Outstanding at September 30, 2014	6,442,231	$	4.76

Schedule Of Warrants Activity [Table Text Block]

The following table summarizes warrant activity for the nine months ended September 30, 2014:

			Weighted-		Aggregate
			average		Intrinsic
	Warrants		exercise price		Value
Outstanding at December 31, 2013		5,718,947	$	1.34	$	14,809,030
Issued		—		—
Exercised		(1,272,340)		2.27
Expired		(9,795)		20.92
Outstanding at September 30, 2014		4,436,812	$	1.03	$	42,811,487

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 nine months ended September 30, 2014:

	Three months ended		Nine months ended
	September 30, 2014		September 30, 2014
Stock-based compensation expense associated with restricted stock	$	4,096,572	$	15,814,346
Stock-based compensation expense associated with option grants		—		252,510
	$	4,096,572	$	16,066,856