Restructuring Restructuring Plan (Details Textual) (USD $)	1 Months Ended		12 Months Ended
	Dec. 30, 2010 December 2010 Restructuring Plan [Member]	Dec. 31, 2011 December 2010 Restructuring Plan [Member]	Dec. 31, 2012 June 2012 Restructuring Plan [Member]
Restructuring and Related Cost, Cost Incurred to Date	$ 1,200,000		$ 1,176,000
December 2010 restructuring reserve balance		$ 49,000
Number of Employees Reduced by Restructuring			42