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SELECTED QUARTERLY FINANCIAL DATA (Details) (USD $)
3 Months Ended 12 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract]                              
Revenues $ 4,257us-gaap_SalesRevenueNet $ 4,186us-gaap_SalesRevenueNet $ 3,752us-gaap_SalesRevenueNet $ 2,831us-gaap_SalesRevenueNet $ 2,863us-gaap_SalesRevenueNet $ 2,295us-gaap_SalesRevenueNet $ 2,081us-gaap_SalesRevenueNet $ 1,537us-gaap_SalesRevenueNet $ 1,241us-gaap_SalesRevenueNet $ 1,036us-gaap_SalesRevenueNet $ 819us-gaap_SalesRevenueNet $ 722us-gaap_SalesRevenueNet $ 15,026,219us-gaap_SalesRevenueNet $ 8,775,598us-gaap_SalesRevenueNet $ 3,818,013us-gaap_SalesRevenueNet
Gross profit 3,377us-gaap_GrossProfit 3,118us-gaap_GrossProfit 2,859us-gaap_GrossProfit 2,000us-gaap_GrossProfit 2,396us-gaap_GrossProfit 1,646us-gaap_GrossProfit 1,617us-gaap_GrossProfit 1,157us-gaap_GrossProfit 908us-gaap_GrossProfit 729us-gaap_GrossProfit 447us-gaap_GrossProfit 386us-gaap_GrossProfit 11,354,416us-gaap_GrossProfit 6,816,001us-gaap_GrossProfit 2,469,900us-gaap_GrossProfit
Net loss $ (16,303)us-gaap_NetIncomeLoss $ (17,832)us-gaap_NetIncomeLoss $ (10,899)us-gaap_NetIncomeLoss $ (9,183)us-gaap_NetIncomeLoss $ (8,361)us-gaap_NetIncomeLoss $ (7,673)us-gaap_NetIncomeLoss $ (6,009)us-gaap_NetIncomeLoss $ (6,376)us-gaap_NetIncomeLoss $ (5,727)us-gaap_NetIncomeLoss $ (4,253)us-gaap_NetIncomeLoss $ (11,850)us-gaap_NetIncomeLoss $ (13,290)us-gaap_NetIncomeLoss $ (54,217,210)us-gaap_NetIncomeLoss $ (28,419,313)us-gaap_NetIncomeLoss $ (35,120,235)us-gaap_NetIncomeLoss
Loss per common share, basic and diluted (in dollars per shares) $ (0.10)us-gaap_EarningsPerShareBasicAndDiluted $ (0.12)us-gaap_EarningsPerShareBasicAndDiluted $ (0.07)us-gaap_EarningsPerShareBasicAndDiluted $ (0.06)us-gaap_EarningsPerShareBasicAndDiluted $ (0.06)us-gaap_EarningsPerShareBasicAndDiluted $ (0.06)us-gaap_EarningsPerShareBasicAndDiluted $ (0.05)us-gaap_EarningsPerShareBasicAndDiluted $ (0.06)us-gaap_EarningsPerShareBasicAndDiluted $ (0.06)us-gaap_EarningsPerShareBasicAndDiluted $ (0.04)us-gaap_EarningsPerShareBasicAndDiluted $ (0.14)us-gaap_EarningsPerShareBasicAndDiluted $ (0.16)us-gaap_EarningsPerShareBasicAndDiluted $ (0.36)us-gaap_EarningsPerShareBasicAndDiluted $ (0.22)us-gaap_EarningsPerShareBasicAndDiluted $ (0.38)us-gaap_EarningsPerShareBasicAndDiluted