Income Taxes (Income Before Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest [Abstract]
United States									$ (11,018)	$ (10,916)	$ (6,557)
Foreign									2,830	6,373	6,934
Income (loss) from continuing operations before income taxes	$ (3,105)	$ (2,189)	$ 797	$ (3,691)	$ (1,534)	$ 351	$ 24	$ (3,384)	$ (8,188)	$ (4,543)	$ 377