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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) | Total | Cash | Professional Services | Licensed Technology | Common Stock | Common Stock Cash | Common Stock Professional Services | Common Stock Licensed Technology | Additional Paid-in Capital | Additional Paid-in Capital Cash | Additional Paid-in Capital Professional Services | Additional Paid-in Capital Licensed Technology | Deficit Accumulated During the Development Stage
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
BEGINNING BALANCE at Nov. 07, 2002 |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock (in shares) |  |  |  |  |  | 6,440,123 | 101,220 |  |  |  |  |  |
Issuance of common stock |  | $ 590,269 | $ 9,108 |  |  | $ 64 | $ 1 |  |  | $ 590,205 | $ 9,107 |  |
ENDING BALANCE at Dec. 31, 2002 | 599,377 |  |  |  | 65 |  |  |  | 599,312 |  |  |  |
ENDING BALANCE (in shares) at Dec. 31, 2002 |  |  |  |  | 6,541,343 |  |  |  |  |  |  |  |
Issuance of common stock (in shares) |  |  |  |  |  | 37,958 |  | 203,483 |  |  |  |  |
Issuance of common stock |  | 4,937 |  | 80,412 |  |  |  | 2 |  | 4,937 |  | 80,410 |
Net loss | (295,790) |  |  |  |  |  |  |  |  |  |  |  | (295,790)
ENDING BALANCE at Dec. 31, 2003 | 388,936 |  |  |  | 67 |  |  |  | 684,659 |  |  |  | (295,790)
ENDING BALANCE (in shares) at Dec. 31, 2003 |  |  |  |  | 6,782,784 |  |  |  |  |  |  |  |
Net loss | (342,761) |  |  |  |  |  |  |  |  |  |  |  | (342,761)
ENDING BALANCE at Dec. 31, 2004 | 46,175 |  |  |  | 67 |  |  |  | 684,659 |  |  |  | (638,551)
ENDING BALANCE (in shares) at Dec. 31, 2004 |  |  |  |  | 6,782,784 |  |  |  |  |  |  |  |
Issuance of common stock (in shares) |  |  |  |  |  | 610,664 |  |  |  |  |  |  |
Issuance of common stock |  | 835,868 |  |  |  | 6 |  |  |  | 835,862 |  |  |
Net loss | (481,837) |  |  |  |  |  |  |  |  |  |  |  | (481,837)
ENDING BALANCE at Dec. 31, 2005 | 400,206 |  |  |  | 73 |  |  |  | 1,520,521 |  |  |  | (1,120,388)
ENDING BALANCE (in shares) at Dec. 31, 2005 |  |  |  |  | 7,393,448 |  |  |  |  |  |  |  |
Issuance of common stock (in shares) |  |  |  |  |  | 2,202,179 |  |  |  |  |  |  |
Issuance of common stock |  | 7,097,072 |  |  |  | 22 |  |  |  | 7,097,050 |  |  |
Common stock repurchased (in shares) |  |  |  |  | (43,819) |  |  |  |  |  |  |  |
Common stock repurchased | (31,667) |  |  |  |  |  |  |  | (31,667) |  |  |  |
Stock-based compensation | 43,994 |  |  |  |  |  |  |  | 43,994 |  |  |  |
Net loss | (963,440) |  |  |  |  |  |  |  |  |  |  |  | (963,440)
ENDING BALANCE at Dec. 31, 2006 | 6,546,165 |  |  |  | 95 |  |  |  | 8,629,898 |  |  |  | (2,083,828)
ENDING BALANCE (in shares) at Dec. 31, 2006 |  |  |  |  | 9,551,808 |  |  |  |  |  |  |  |
Issuance of common stock (in shares) |  |  |  |  |  | 60,250 |  |  |  |  |  |  |
Issuance of common stock |  | 250,000 |  |  |  | 1 |  |  |  | 249,999 |  |  |
Exercise of warrant to purchase common stock (in shares) |  |  |  |  | 75,045 |  |  |  |  |  |  |  |
Exercise of warrant to purchase common stock | 250,000 |  |  |  | 1 |  |  |  | 249,999 |  |  |  |
Stock-based compensation | 570,392 |  |  |  |  |  |  |  | 570,392 |  |  |  |
Net loss | (5,090,325) |  |  |  |  |  |  |  |  |  |  |  | (5,090,325)
ENDING BALANCE at Dec. 31, 2007 | 2,526,232 |  |  |  | 97 |  |  |  | 9,700,288 |  |  |  | (7,174,153)
ENDING BALANCE (in shares) at Dec. 31, 2007 |  |  |  |  | 9,687,103 |  |  |  |  |  |  |  |
Issuance of common stock (in shares) |  |  |  |  |  | 3,132,999 |  |  |  |  |  |  |
Issuance of common stock |  | 12,931,562 |  |  |  | 31 |  |  |  | 12,931,531 |  |  |
Stock-based compensation | 477,488 |  |  |  |  |  |  |  | 477,488 |  |  |  |
Net loss | (6,090,715) |  |  |  |  |  |  |  |  |  |  |  | (6,090,715)
ENDING BALANCE at Dec. 31, 2008 | 9,844,567 |  |  |  | 128 |  |  |  | 23,109,307 |  |  |  | (13,264,868)
ENDING BALANCE (in shares) at Dec. 31, 2008 |  |  |  |  | 12,820,102 |  |  |  |  |  |  |  |
Stock-based compensation | 502,199 |  |  |  |  |  |  |  | 502,199 |  |  |  |
Net loss | (6,219,873) |  |  |  |  |  |  |  |  |  |  |  | (6,219,873)
ENDING BALANCE at Dec. 31, 2009 | 4,126,893 |  |  |  | 128 |  |  |  | 23,611,506 |  |  |  | (19,484,741)
ENDING BALANCE (in shares) at Dec. 31, 2009 |  |  |  |  | 12,820,102 |  |  |  |  |  |  |  |
Intrinsic value of beneficial conversion feature associated convertible debt | 213,792 |  |  |  |  |  |  |  | 213,792 |  |  |  |
Stock-based compensation | 353,340 |  |  |  |  |  |  |  | 353,340 |  |  |  |
Net loss | (4,560,263) |  |  |  |  |  |  |  |  |  |  |  | (4,560,263)
ENDING BALANCE at Dec. 31, 2010 | 133,762 |  |  |  | 128 |  |  |  | 24,178,638 |  |  |  | (24,045,004)
ENDING BALANCE (in shares) at Dec. 31, 2010 |  |  |  |  | 12,820,102 |  |  |  |  |  |  |  |
Issuance of common stock upon conversion of convertible notes (in shares) |  |  |  |  | 4,181,535 |  |  |  |  |  |  |  |
Issuance of common stock upon conversion of convertible notes | 3,184,707 |  |  |  | 42 |  |  |  | 3,184,665 |  |  |  |
Issuance of common stock in a business combination (in shares) |  |  |  |  | 2,959,871 |  |  |  |  |  |  |  |
Issuance of common stock in a business combination | 2,219,903 |  |  |  | 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, net of issuance costs (in shares) |  |  |  |  | 16,928,204 |  |  |  |  |  |  |  |
Issuance of common stock and warrants, net of issuance costs | 10,164,546 |  |  |  | 169 |  |  |  | 10,164,377 |  |  |  |
Intrinsic value of beneficial conversion feature associated convertible debt | 257,973 |  |  |  |  |  |  |  | 257,973 |  |  |  |
Issuance of common stock upon cashless exercise of warrants and reclassification of derivative liability to additional paid-in-capital (in shares) |  |  |  |  | 18,153 |  |  |  |  |  |  |  |
Issuance of common stock upon cashless exercise of warrants and reclassification of derivative liability to additional paid-in-capital | 48,339 |  |  |  |  |  |  |  | 48,339 |  |  |  |
Stock-based compensation | 907,460 |  |  |  |  |  |  |  | 907,460 |  |  |  |
Net loss | (7,435,422) |  |  |  |  |  |  |  |  |  |  |  | (7,435,422)
ENDING BALANCE at Dec. 31, 2011 | 9,481,123 |  |  |  | 369 |  |  |  | 40,961,180 |  |  |  | (31,480,426)
ENDING BALANCE (in shares) at Dec. 31, 2011 |  |  |  |  | 36,907,824 |  |  |  |  |  |  |  |
Issuance of common stock upon cashless exercise of warrants and reclassification of derivative liability to additional paid-in-capital (in shares) |  |  |  |  | 54,440 |  |  |  |  |  |  |  |
Issuance of common stock upon cashless exercise of warrants and reclassification of derivative liability to additional paid-in-capital | 19,754 |  |  |  |  |  |  |  | 19,754 |  |  |  |
Stock-based compensation | 417,353 |  |  |  |  |  |  |  | 417,353 |  |  |  |
Net loss | (2,356,903) |  |  |  |  |  |  |  |  |  |  |  | (2,356,903)
ENDING BALANCE at Mar. 31, 2012 | $ 7,561,327 |  |  |  | $ 369 |  |  |  | $ 41,398,287 |  |  |  | $ (33,837,329)
ENDING BALANCE (in shares) at Mar. 31, 2012 |  |  |  |  | 36,962,264 |  |  |  |  |  |  |  |

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