Income Taxes - Income Tax Expense (Benefit) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Expense (Benefit) [Abstract]
Current federal tax expense (benefit)	$ 1,793	$ 715	$ (16)
Deferred federal income tax expense (benefit)	(497)	2,036	120
Federal income tax expense (benefit), continuing operations	1,296	2,751	104
Current state and local tax expense (benefit)	242	146	179
Deferred state and local income tax expense (benefit)	(52)	254	(955)
State and local income tax expense (benefit), continuing operations	190	400	(776)
Current foreign tax expense (benefit)	901	249	212
Deferred foreign income tax expense (benefit)	(237)	(137)	(24)
Foreign income tax expense (benefit), continuing operations	664	112	188
Current income tax expense (benefit)	2,936	1,110	375
Deferred income tax expense (benefit)	(786)	2,153	(859)
Net income tax expense (benefit)	$ 2,150	$ 3,263	$ (484)