XML 27 R16.htm IDEA: XBRL DOCUMENT v3.5.0.2
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - MARKETABLE SECURITIES AND USEFUL LIVES OF ASSETS (Details)
6 Months Ended
Jun. 30, 2016
Depreciation and Amortization  
Estimated useful lives of assets 4 years
Minimum  
Marketable securities  
Original maturity period of marketable securities 4 months
Maximum  
Marketable securities  
Original maturity period of marketable securities 24 months