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STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)
Total
USD ($)
Pre Acquisition
USD ($)
Cash
USD ($)
Professional Services
USD ($)
licensed technology
USD ($)
Convertible Debt
USD ($)
Series C Convertible Preferred Stock and Accumulated Dividends
Pre Acquisition
USD ($)
Series E Convertible Preferred Stock and Accumulated Dividends
Pre Acquisition
USD ($)
Private Placement
Pre Acquisition
USD ($)
Public Offering
Pre Acquisition
USD ($)
Preferred Stock and Dividend
Pre Acquisition
USD ($)
Common Stock
USD ($)
Common Stock
Pre Acquisition
USD ($)
Common Stock
Cash
USD ($)
Common Stock
Professional Services
USD ($)
Common Stock
licensed technology
USD ($)
Common Stock
Convertible Debt
USD ($)
Common Stock
Series C Convertible Preferred Stock and Accumulated Dividends
Pre Acquisition
Common Stock
Series E Convertible Preferred Stock and Accumulated Dividends
Pre Acquisition
USD ($)
Common Stock
Private Placement
Pre Acquisition
USD ($)
Common Stock
Public Offering
Pre Acquisition
USD ($)
Common Stock
Preferred Stock and Dividend
Pre Acquisition
USD ($)
Additional Paid-in Capital
USD ($)
Additional Paid-in Capital
Pre Acquisition
USD ($)
Additional Paid-in Capital
Cash
USD ($)
Additional Paid-in Capital
Professional Services
USD ($)
Additional Paid-in Capital
licensed technology
USD ($)
Additional Paid-in Capital
Convertible Debt
USD ($)
Additional Paid-in Capital
Series C Convertible Preferred Stock and Accumulated Dividends
Pre Acquisition
USD ($)
Additional Paid-in Capital
Series E Convertible Preferred Stock and Accumulated Dividends
Pre Acquisition
USD ($)
Additional Paid-in Capital
Private Placement
Pre Acquisition
USD ($)
Additional Paid-in Capital
Public Offering
Pre Acquisition
USD ($)
Additional Paid-in Capital
Preferred Stock and Dividend
Pre Acquisition
USD ($)
Deficit Accumulated During the Development Stage
USD ($)
Redeemable Preferred Stock Series D and E Convertible Preferred Stock
Pre Acquisition
USD ($)
Redeemable Preferred Stock Series D and E Convertible Preferred Stock
Series E Convertible Preferred Stock and Accumulated Dividends
Pre Acquisition
USD ($)
Redeemable Preferred Stock Series D and E Convertible Preferred Stock
Preferred Stock and Dividend
Pre Acquisition
USD ($)
Series C Cumulative Convertible Preferred Stock
Pre Acquisition
Series C Cumulative Convertible Preferred Stock
Series C Convertible Preferred Stock and Accumulated Dividends
Pre Acquisition
Series C Cumulative Convertible Preferred Stock
Preferred Stock and Dividend
Pre Acquisition
Accumulated Deficit
Pre Acquisition
USD ($)
Beginning Balance at Nov. 06, 2002                                         
Issuance of common stock (in shares)             6,440,123101,220                          
Issuance of common stock  $ 590,269$ 9,108         $ 64$ 1         $ 590,205$ 9,107               
Ending Balance at Dec. 31, 2002599,377          65          599,312                  
Ending Balance (in shares) at Dec. 31, 2002           6,541,343                             
Net income (loss)(295,790)                                (295,790)       
Issuance of common stock (in shares)             37,958 203,483                         
Issuance of common stock  4,937 80,412          2        4,937 80,410              
Ending Balance at Dec. 31, 2003388,936          67          684,659          (295,790)       
Ending Balance (in shares) at Dec. 31, 2003           6,782,784                             
Net income (loss)(342,761)                                (342,761)       
Ending Balance at Dec. 31, 200446,175          67          684,659          (638,551)       
Ending Balance (in shares) at Dec. 31, 2004           6,782,784                             
Net income (loss)(481,837)                                (481,837)       
Issuance of common stock (in shares)             610,664                           
Issuance of common stock  835,868          6          835,862                
Ending Balance at Dec. 31, 2005400,206          73          1,520,521          (1,120,388)       
Beginning Balance (in shares) at Dec. 31, 2005           7,393,448                             
Common stock repurchased (in shares)           (43,819)                             
Common stock repurchased(31,667)                     (31,667)                  
Stock-based compensation43,994                     43,994                  
Net income (loss)(963,440)                                (963,440)       
Issuance of common stock (in shares)             2,202,179                           
Issuance of common stock  7,097,072          22          7,097,050                
Ending Balance at Dec. 31, 20066,546,165          95          8,629,898          (2,083,828)       
Ending Balance (in shares) at Dec. 31, 2006           9,551,808                             
Exercise of warrant to purchase common stock (in shares)           75,045                             
Exercise of warrant to purchase common stock250,000          1          249,999                  
Stock-based compensation570,392                     570,392                  
Net income (loss)(5,090,325)                                (5,090,325)       
Issuance of common stock (in shares)             60,250                           
Issuance of common stock  250,000          1          249,999                
Ending Balance at Dec. 31, 20072,526,232          97          9,700,288          (7,174,153)       
Ending Balance (in shares) at Dec. 31, 2007           9,687,103                             
Stock-based compensation477,488                     477,488                  
Net income (loss)(6,090,715)                                (6,090,715)       
Issuance of common stock (in shares)             3,132,999                           
Issuance of common stock  12,931,562          31          12,931,531                
Ending Balance at Dec. 31, 20089,844,567(19,488,601)         1283.0         23,109,30740,204,549         (13,264,868)13,904,100     (59,693,153)
Ending Balance (in shares) at Dec. 31, 2008           12,820,102287,423                     413.5  272   
Reclassification of warrants to derivative liability (see Note 2) (998,945)                     (6,893,316)                5,894,371
Issuance of common stock and warrants (in shares)                   89,126                     
Issuance of common stock and warrants        8,938,884          1          8,938,883          
Exercise of warrant to purchase common stock (in shares)            3,162                            
Exercise of warrant to purchase common stock 1,000,962                     1,000,962                 
Issuance of common stock in exchange for warrants (in shares)            13,623                            
Issuance of common stock in exchange for warrants 1,625,760                     1,625,760                 
Compensation expense associated with options issued to employees 437,066                     437,066                 
Stock-based compensation502,199                     502,199                  
Compensation expense (benefit) associated with options issued to non-employees 427,271                     427,271                 
Issuance of Series E redeemable convertible preferred stock and warrants, net of issuance costs of $795,469 (in shares)                                  200      
Issuance of Series E redeemable convertible preferred stock and warrants, net of issuance costs of $795,469 2,907,208                     2,907,208          6,297,323      
Issuance of Series E redeemable convertible preferred stock in payment of accumulated dividends(in shares)                                  31.942875      
Issuance of Series E redeemable convertible preferred stock in payment of accumulated dividends                                  1,597,144      
Adjustment to record the carrying value of Series E redeemable convertible preferred stock at fair value on the date of sale 125,892                     125,892          (125,892)      
Fair value of the extension of expiration date of warrants 839,923                     839,923                 
Accretion of deemed dividend associated with the extension of expiration date of warrants (839,923)                     (839,923)                 
Dividends accrued on preferred stock (3,296,289)                     (3,296,289)                 
Net income (loss)(6,219,873)(22,273,306)                               (6,219,873)      (22,273,306)
Conversion of Convertible Securities (in shares)                 10,05851,889                (97.18209375)  (68)  
Conversion of Convertible Securities      184,2463,514,314          1         184,2463,514,313     (32,130,560)     
Ending Balance at Dec. 31, 20094,126,893(26,895,538)         1285         23,611,50649,176,545.00000000         (19,484,741)18,459,619.00000000     (76,072,088.00000000)
Ending Balance (in shares) at Dec. 31, 2009           12,820,102455,281                     548.26078125  204   
Net income (loss) 5,350,122                                       
Ending Balance at Mar. 31, 2010                                         
Beginning Balance at Dec. 31, 20094,126,893(26,895,538)         1285         23,611,50649,176,545.00000000         (19,484,741)      (76,072,088.00000000)
Beginning Balance (in shares) at Dec. 31, 2009           12,820,102455,281                        204   
Exercise of stock options 158,567                     158,567                 
Exercise of stock options (in shares)            5,991                            
Issuance of common stock and warrants (in shares)                    140,056                    
Issuance of common stock and warrants         744,911          1          744,910         
Intrinsic value of beneficial conversion feature associated with the conversion of convertible debt213,792                     213,792                  
Exercise of warrant to purchase common stock (in shares)            53,478                            
Exercise of warrant to purchase common stock 2,584,397          1          2,584,396                 
Compensation expense associated with options issued to employees 586,321                     586,321                 
Stock-based compensation353,340                     353,340                  
Compensation expense (benefit) associated with options issued to non-employees (249,023)                     (249,023)                 
Fair value of incremental shares issued to preferred stockholders in connection with exchange of preferred stock for common stock 11,955,151                     11,955,151                 
Fair value of warrants issued to preferred shareholders 586,050                     586,050                 
Accretion of deemed dividend associated with the issuance of warrants to preferred stockholders (586,050)                     (586,050)                 
Accretion of deemed dividend associated with the incremental shares of common stock issued in connection with the exchange of preferred stock (11,955,151)                     (11,955,151)                 
Dividends accrued on preferred stock (2,207,827)                     (2,207,827)                 
Net income (loss)(4,560,263)2,095,392                               (4,560,263)      2,095,392
Conversion of Convertible Securities (in shares)                  76,770  2,228,338             (139.99673625)(408.264045)  (204) 
Conversion of Convertible Securities       5,324,518  19,064,891.000000       1  22       5,324,517  19,064,869.000000  (4,689,593)(13,770,026.000000)    
Ending Balance at Dec. 31, 2010133,7621,206,609          30         24,178,63875,183,275         (24,045,004)      (73,976,696)
Ending Balance (in shares) at Dec. 31, 2010            2,959,914                            
Net income (loss) (1,010,072)                                       
Ending Balance at Mar. 31, 2011 304,915                                       
Beginning Balance at Dec. 31, 2010133,762          128          24,178,638          (24,045,004)       
Beginning Balance (in shares) at Dec. 31, 2010           12,820,102                             
Issuance of common stock in a business combination (in shares)           2,959,871                             
Issuance of common stock in a business combination2,219,903          30          2,219,873                  
Cash paid in lieu of fractional shares in a business combination, (in shares)           (41)                             
Cash paid in lieu of fractional shares in a business combination(145)                     (145)                  
Issuance of common stock and warrants (in shares)           6,846,537                             
Issuance of common stock and warrants4,866,406          68          4,866,338                  
Intrinsic value of beneficial conversion feature associated with the conversion of convertible debt257,973                     257,973                  
Exercise of warrant to purchase common stock (in shares)           18,153                             
Exercise of warrant to purchase common stock48,339                     48,339                  
Stock-based compensation655,656                     655,656                  
Net income (loss)(5,469,502)                                (5,469,502)       
Conversion of Convertible Securities (in shares)                4,181,535                        
Conversion of Convertible Securities     3,184,707          42          3,184,665             
Ending Balance at Sep. 30, 2011$ 5,897,099          $ 268          $ 35,411,337          $ (29,514,506)       
Ending Balance (in shares) at Sep. 30, 2011           26,826,157