Income Taxes (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Current:
Federal	$ 2,550	$ 6,047	$ 4,983
State	184	754	995
Foreign	(61)	140	364
Total Current Income Tax Expense	2,673	6,941	6,342
Deferred:
Federal	2,142	3,518	2,210
State	360	2	(494)
Foreign	175	2,633	1,284
Reversal of valuation allowance	(132)	(178)	(655)
Deferred Income Tax Expense Benefit	2,545	5,975	2,345
Total provision (benefit) for taxes on income	$ 5,218	$ 12,916	$ 8,687