Organization and Significant Accounting Policies - Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period	$ (392)
Other comprehensive income (loss), net of tax	429		(773)		138
Balance, end of period	37		(392)
Foreign currency translation
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period	(420)		345
Other comprehensive income (loss), net of tax	438	[1]	(765)	[1]
Balance, end of period	18		(420)
Available-for-sale marketable securities
Increase (Decrease) in Accumulated Other Comprehensive Income [Roll Forward]
Balance, beginning of period	28		36
Other comprehensive income (loss), before tax	(14)	[2]	(8)	[2]
Deferred income taxes	5	[2]	0	[2]
Other comprehensive income (loss), net of tax	(9)		(8)
Balance, end of period	$ 19		$ 28

[1] In all periods presented, there were no tax impacts related to rate changes and no amounts were reclassified to earnings.

[2] In all periods presented, there were no realized holding gains or losses and therefore no amounts were reclassified to earnings.