XML 51 R37.htm IDEA: XBRL DOCUMENT v3.8.0.1
Investments, Trading Securities (Details) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Trading Securities [Abstract]    
Fair value, derivatives included in trading security assets $ 0 $ 2,500
Fair value, derivative included in trading security liabilities 0 (1,439)
Increase (Decrease) in Trading Securities [Abstract]    
Net unrealized gains (losses) (111,531) 31,259
Net realized gains (losses) 110,470 0
Net unrealized and realized gains (losses) $ (1,061) $ 31,259