XML 46 R31.htm IDEA: XBRL DOCUMENT v3.7.0.1
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)