XML 53 R32.htm IDEA: XBRL DOCUMENT v3.8.0.1
Accumulated Other Comprehensive Loss (Details) - USD ($)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Beginning balance $ 0 $ (451)
Unrealized Gain on Investments, Current Period 0 451
Ending balance $ 0 $ 0