Annual report pursuant to Section 13 and 15(d)

Investments (Details)

v3.7.0.1
Investments (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost $ 101 $ 196
Gross Unrealized Gains
Gross Unrealized Losses
Fair Value 101 196
Money Market Funds [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Amortized Cost 101 196
Gross Unrealized Gains
Gross Unrealized Losses
Fair Value 101 196
Cash And Cash Equivalents [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair Value 3
Restricted Cash [Member]    
Schedule of Available-for-sale Securities [Line Items]    
Fair Value $ 101 $ 193