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QUARTERLY FINANCIAL DATA (Unaudited) (Details) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2016 | Sep. 30, 2016 | Jun. 30, 2016 | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Quarterly Financial Data [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total Income (Loss) | $ 9,627,887 | $ (1,430,260) | $ 23,198,440 | $ 6,608,262 | $ (23,505,325) | $ (29,085,453) | $ 12,218,310 | $ (2,444,251) |  |  |
Total Expenses | 307,039 | 295,596 | 314,611 | 272,050 | 225,114 | 237,707 | 288,100 | 212,837 |  |  |
Expense Waivers | (50,753) | (43,026) | (36,554) | (59,762) | (43,991) | (32,885) | (30,764) | (27,677) | $ 190,095 | $ 135,317 | $ 148,604
Net Expenses | 256,286 | 252,570 | 278,057 | 212,288 | 181,123 | 204,822 | 257,336 | 185,160 |  |  |
Net Income (Loss) | $ 9,371,601 | $ (1,682,830) | $ 22,920,383 | $ 6,395,974 | $ (23,686,448) | $ (29,290,275) | $ 11,960,974 | $ (2,629,411) | $ 37,005,128 | $ (43,645,160) | $ (26,451,869)
Net Income (Loss) per Share | $ 1.11 | $ (0.27) | $ 2.55 | $ 0.09 | $ (4.34) | $ (6.07) | $ 2.15 | $ (1.91) | $ 3.48 | $ (10.17) | $ (21.42)

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