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QUARTERLY FINANCIAL DATA (Unaudited) (Summarized Quarterly Financial Information) (Details) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Quarterly Financial Information [Line Items]                      
Total Income (Loss) $ (39,352,835) $ (10,667,801) $ (43,745,913) $ (93,242,321) $ 83,842,384 $ (18,658,356) $ 153,225,194 $ (113,577,426) $ (187,008,870) $ 104,831,796 $ (237,425,354)
Total Expenses 1,959,853 1,365,327 1,473,807 1,636,118 1,599,257 1,449,083 1,571,572 1,479,702 6,435,105 6,099,614 7,715,669
Net Income (Loss) $ (41,312,688) $ (12,033,128) $ (45,219,720) $ (94,878,439) $ 82,243,127 $ (20,107,439) $ 151,653,622 $ (115,057,128) $ (193,443,975) $ 98,732,182 $ (245,141,023)
Net Income (Loss) per Share $ (2.83) [1] $ (0.96) [1] $ (3.15) [1] $ (6.90) [1] $ 3.88 [1] $ (1.31) [1] $ 8.00 [1] $ (8.15) [1] $ (13.84) [2] $ 2.42 [2] $ (23.75) [2]
[1] Adjusted to give effect to the reverse share split of 1-for-4 executed on January 4, 2018.
[2] On January 4, 2018, there was a 1-for-4 reverse share split. The Statement of Operations have been adjusted for the period shown to reflect the 1-for-4 reverse share split on a retroactive basis.