XML 29 R19.htm IDEA: XBRL DOCUMENT v3.8.0.1
INVESTMENTS IN MARKETABLE SECURITIES (Details) - USD ($)
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Net Realized And Unrealized Gain Loss From Investments In Marketable Security Summarized Below [Line Items]    
Net realized loss from sales of securities $ (8,000) $ (18,000)
Unrealized net gain in trading securities (13,000) 145,000
Total net gain from investments in marketable securities $ (20,761) $ 126,512