Organization and Summary of Significant Accounting Policies (Details 2) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Summary of reconciliation of basic and diluted net income per share
Net income available to common stockholders for basic and diluted net income per share of common stock	$ 2,322,553	$ 1,071,370	$ 3,945,153	$ 1,374,165
Weighted average common stock outstanding - basic	2,955,786	2,572,753	2,925,355	2,370,138
Effect of dilutive securities:
Series A convertible preferred stock		58,974		207,431
Warrants		29,256		15,295
Weighted average common stock outstanding - diluted	2,955,786	2,660,983	2,925,355	2,592,864
Net income per common share - basic	$ 0.79	$ 0.42	$ 1.35	$ 0.58
Net income per common share - diluted	$ 0.79	$ 0.40	$ 1.35	$ 0.53