Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Balance at beginning of year	$ (1,594)	$ (431)
Current period change	(843)	(1,163)
Balance at year end	(2,437)	(1,594)
Accumulated Translation Adjustment [Member]
Balance at beginning of year	(1,582)	(424)
Current period change	(853)	(1,158)
Balance at year end	(2,435)	(1,582)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Balance at beginning of year	(12)	(7)
Current period change	10	(5)
Balance at year end	$ (2)	$ (12)