Income Taxes Schedule of income tax expense (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Federal	$ 3,040	$ 3,845	$ 2,595
State	870	360	1,604
Foreign	1,884	2,176	442
Total current	5,794	6,381	4,641
Federal	328	4,819	1,086
State	1,669	1,198	(552)
Foreign	(91)	184	(45)
Total deferred	1,906	6,201	489
Income tax expense	$ 7,700	$ 12,582	$ 5,130