Quarterly report pursuant to Section 13 or 15(d)

Investments (Details)

v3.5.0.2
Investments (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost $ 1,794 $ 1,794
Gross Unrealized Gains 0 0
Gross Unrealized Losses (3) (22)
Fair Value 1,791 1,772
U.S. government security funds    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 1,794 1,794
Gross Unrealized Gains 0 0
Gross Unrealized Losses (3) (22)
Fair Value $ 1,791 $ 1,772