XML 47 R30.htm IDEA: XBRL DOCUMENT v3.3.1.900
FINANCIAL HIGHLIGHTS (Details) - $ / shares
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Per Share Operating Performance:      
Net asset value, beginning of year $ 22.39 $ 43.81 $ 40.98 [1]
Total income (loss) (10) (21.06) 3.24
Net expenses (0.17) (0.36) (0.41)
Net increase (decrease) in Net Asset Value (10.17) (21.42) 2.83
Net asset value, end of year $ 12.22 $ 22.39 $ 43.81
Total Return (45.42%) (48.89%) 6.91%
Ratios to Average Net Assets      
Total income (loss) (46.52%) (68.25%) 6.66%
Management fees 0.75% 0.75% 0.75%
Total expenses excluding management fees 0.30% 0.56% 0.45%
Expenses waived (0.15%) (0.39%) (0.20%)
Net expenses excluding management fees 0.15% 0.17% 0.25%
Net income (loss) (47.42%) (69.17%) 5.66%
[1] Adjusted to give effect to the forward share split of 2-for-1 paid after close of markets on August 28, 2013.