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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 ($) | Series C Cumulative Convertible Preferred Stock Pre Acquisition | Series C Cumulative Convertible Preferred Stock Series C Convertible Preferred Stock and Accumulated Dividends Pre Acquisition | Series C Cumulative Convertible Preferred Stock Preferred Stock and Dividend Pre Acquisition | Accumulated Deficit Pre Acquisition USD ($)
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Beginning Balance at Nov. 06, 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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
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, 2003 | 388,936 |  |  |  |  |  |  |  |  |  |  | 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, 2004 | 46,175 |  |  |  |  |  |  |  |  |  |  | 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, 2005 | 400,206 |  |  |  |  |  |  |  |  |  |  | 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 compensation | 43,994 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 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, 2006 | 6,546,165 |  |  |  |  |  |  |  |  |  |  | 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 stock | 250,000 |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  | 249,999 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation | 570,392 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 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, 2007 | 2,526,232 |  |  |  |  |  |  |  |  |  |  | 97 |  |  |  |  |  |  |  |  |  |  | 9,700,288 |  |  |  |  |  |  |  |  |  |  | (7,174,153) |  |  |  |  |  |  |
Ending Balance (in shares) at Dec. 31, 2007 |  |  |  |  |  |  |  |  |  |  |  | 9,687,103 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation | 477,488 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 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, 2008 | 9,844,567 | (19,488,601) |  |  |  |  |  |  |  |  |  | 128 | 3.0 |  |  |  |  |  |  |  |  |  | 23,109,307 | 40,204,549 |  |  |  |  |  |  |  |  |  | (13,264,868) | 13,904,100 |  |  |  |  |  | (59,693,153)
Ending Balance (in shares) at Dec. 31, 2008 |  |  |  |  |  |  |  |  |  |  |  | 12,820,102 | 287,423 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 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 compensation | 502,199 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 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) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,058 | 51,889 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (97.18209375) |  |  | (68) |  |
Conversion of Convertible Securities |  |  |  |  |  |  | 184,246 | 3,514,314 |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  | 184,246 | 3,514,313 |  |  |  |  |  | (32,130,560) |  |  |  |  |
Ending Balance at Dec. 31, 2009 | 4,126,893 | (26,895,538) |  |  |  |  |  |  |  |  |  | 128 | 5 |  |  |  |  |  |  |  |  |  | 23,611,506 | 49,176,545.00000000 |  |  |  |  |  |  |  |  |  | (19,484,741) | 18,459,619.00000000 |  |  |  |  |  | (76,072,088.00000000)
Ending Balance (in shares) at Dec. 31, 2009 |  |  |  |  |  |  |  |  |  |  |  | 12,820,102 | 455,281 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 548.26078125 |  |  | 204 |  |  |
Net income (loss) |  | 5,350,122 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ending Balance at Mar. 31, 2010 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning Balance at Dec. 31, 2009 | 4,126,893 | (26,895,538) |  |  |  |  |  |  |  |  |  | 128 | 5 |  |  |  |  |  |  |  |  |  | 23,611,506 | 49,176,545.00000000 |  |  |  |  |  |  |  |  |  | (19,484,741) |  |  |  |  |  |  | (76,072,088.00000000)
Beginning Balance (in shares) at Dec. 31, 2009 |  |  |  |  |  |  |  |  |  |  |  | 12,820,102 | 455,281 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 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 debt | 213,792 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 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 compensation | 353,340 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 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, 2010 | 133,762 | 1,206,609 |  |  |  |  |  |  |  |  |  |  | 30 |  |  |  |  |  |  |  |  |  | 24,178,638 | 75,183,275 |  |  |  |  |  |  |  |  |  | (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, 2010 | 133,762 |  |  |  |  |  |  |  |  |  |  | 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 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 (in shares) |  |  |  |  |  |  |  |  |  |  |  | 6,846,537 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of common stock and warrants | 4,866,406 |  |  |  |  |  |  |  |  |  |  | 68 |  |  |  |  |  |  |  |  |  |  | 4,866,338 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Intrinsic value of beneficial conversion feature associated with the conversion of convertible debt | 257,973 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 257,973 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise of warrant to purchase common stock (in shares) |  |  |  |  |  |  |  |  |  |  |  | 18,153 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exercise of warrant to purchase common stock | 48,339 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 48,339 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation | 655,656 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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- Definition Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Chapter 1 -Section B -Paragraph 11A -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_StockRepurchasedDuringPeriodValue
Namespace Prefix: | us-gaap
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration