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Stockholders' Deficit (Details Textual) (USD $)
 1 Months Ended 3 Months Ended 6 Months Ended 0 Months Ended 1 Months Ended 3 Months Ended
Jan. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2011
Jun. 03, 2010
Jan. 16, 2008
Aug. 17, 2007
Jun. 01, 2011
Minimum [Member]
Jun. 01, 2011
Maximum [Member]
Jun. 30, 2011
Warrants [Member]
Mar. 31, 2011
Warrants [Member]
Aug. 17, 2007
Restricted stock units (RSUs) [Member]
May 06, 2010
Common Stock [Member]
Apr. 20, 2010
Common Stock [Member]
Jun. 30, 2011
Common Stock [Member]
Mar. 31, 2011
Common Stock [Member]
Jun. 30, 2012
Series D Convertible, Preferred Stock [Member]
Dec. 31, 2011
Series D Convertible, Preferred Stock [Member]
Apr. 20, 2010
Series D Convertible, Preferred Stock [Member]
May 06, 2010
Series E Convertible, Preferred Stock [Member]
Stockholders Deficit (Textual) [Abstract]                                            
Common stock, shares authorized   150,000,000   150,000,000   150,000,000       100,000,000 150,000,000                      
Shares issued from warrant conversion                                 46,000 56,000        
Outstanding warrants                       46,000 56,000                  
Common stock converted from preferred stock                             1,300,000 600,000            
Preferred stock, outstanding   0   0   0                         206,400 206,400 600,000 13
Shares authorized for stock-based compensation             3,000,000 2,500,000 2,500,000         500,000                
Stockholders Deficit (Additional Textual) [Abstract]                                            
Public offering shares issued 5,520,000                                          
Public offering, per share value $ 3.05                                          
Number of stock incentive plans       2                                    
Stock incentive plan expiration date       Aug. 17, 2007                                    
Exercise price of incentive option granted       exercise price of any incentive option granted to an eligible employee owning more than 10% of our outstanding common stock must not be less than 110% of fair market value on the date of the grant.                                    
Share-based compensation   $ 529,669 $ 449,475 $ 918,088 $ 898,314                                  
Weighted average estimated fair value of stock options   $ 1.48   $ 1.48