SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Reconciliation of Basic and Diluted Earnings per Share) (Details) (USD $)	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
Reconciliation Of Basic and Diluted Earnings [Line Items]
Net income (loss) for common shares	$ 4,393,782		$ (1,405,231)		$ 11,425,316		$ 1,841,456
Interest expense on convertible notes	0	[1]	181,548	[1]	0	[1]	684,035	[1]
Net income (loss) for diluted shares	$ 4,393,782		$ (1,223,683)		$ 11,425,136		$ 2,525,491
Weighted average shares outstanding - basic	53,927,370		47,045,002		51,472,254		46,665,956
Effect of dilutive securities:
Convertible notes			3,179,348				3,558,394
Options	1,015,278		610,242		707,135		887,232
Warrants	0		0		0		0
Weighted average shares outstanding - diluted	54,942,648	[2]	50,834,592	[2]	52,179,389	[2]	51,111,582	[2]
Earnings (loss) per share - basic	$ 0.08		$ (0.03)		$ 0.22		$ 0.04
Earnings (loss) per share - diluted	$ 0.08	[1],[3]	$ (0.03)	[1],[3]	$ 0.22	[1],[3]	$ 0.04	[1],[3]

[1] Interest expense on convertible notes was added back to net income for the computation of diluted EPS.

[2] For the purpose of calculating diluted earnings per share, the dilutive securities were excluded due to anti-dilution for the three months ended September 30, 2012.

[3] Interest expense accrued on convertible notes is added back to net income for the computation of diluted EPS.