EARNINGS PER SHARE (Tables)

12 Months Ended

Dec. 31, 2012

Earnings Per Share [Abstract]

Reconciliation of Net Income and Weighted Average Shares Used in Computation of Basic and Diluted Earnings Per Share

The following table is a reconciliation of the net income and the weighted average shares used in the computation of basic and diluted earnings per share for the periods presented:

	Year ended December 31,
	2012		2011		2010
Income available to common stockholders:
- Basic and diluted	$	57,942,003	$	53,133,533	$	38,465,975
Weighted average number of shares:
- Basic		29,815,943		29,816,871		27,956,451
- Effect of dilutive securities - warrants, options and convertible preferred stock		149,868		259,259		714,912
- Diluted		29,965,811		30,076,130		28,671,363
Net income per share
- Basic	$	1.94	$	1.78	$	1.38
- Diluted	$	1.93	$	1.77	$	1.34