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CONDENSED CONSOLIDATED STATEMENTS OF OPERATION (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2013 | Mar. 31, 2012 | Dec. 31, 2012 | Dec. 31, 2011
Revenues | $ 2,142,932 | $ 1,653,430 | $ 7,691,704 | $ 4,849,470
Cost of goods sold | 560,243 | 439,158 | 1,961,877 | 2,426,544
Gross profit | 1,582,689 | 1,214,272 | 5,729,827 | 2,422,926
Costs and expenses: |  |  |  |
Sales and marketing | 1,893,541 | 1,628,608 | 6,883,953 | 4,378,694
Research and development | 406,943 | 296,131 | 1,427,211 | 697,355
General and administrative | 1,605,759 | 1,230,608 | 5,220,599 | 4,315,604
Total costs and expenses | 3,906,243 | 3,155,347 | 13,531,763 | 9,391,653
Loss from operations | (2,323,554) | (1,941,075) | (7,801,936) | (6,968,727)
Other income (expense): |  |  |  |
Interest expense | (1,067,621) | (125,125) | (1,391,342) | (1,094,657)
Interest expense - deferred financing costs | (44,216) | (34,951) | (986,844) | (1,223,126)
Change in fair value of warrant liability |  |  |  | 62,305
Other income (expense) | (2,117) | (8,174) | 23,972 | 4,985
Total other income (expense) | (1,113,954) | (168,250) | (2,354,214) | (2,250,493)
Loss before income taxes |  |  | (10,156,150) | (9,219,220)
Income tax benefit |  |  | 738,192 |
Net loss | (3,437,508) | (2,109,325) | (9,417,958) | (9,219,220)
Preferred Stock dividends (assumes all paid) |  |  |  | (1,028,351)
Net loss attributable to common stockholders | $ (3,437,508) | $ (2,109,325) | $ (9,417,958) | $ (10,247,571)
Weighted Average Common Shares outstanding - basic and diluted | 11,124,633 | 11,062,339 | 11,089,425 | 3,697,390
Loss Per Common share - basic and diluted | $ (0.31) | $ (0.19) | $ (0.85) | $ (2.77)

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