Commitments and Contingencies (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013 People	Mar. 31, 2012	Sep. 26, 2011
Commitments and Contingencies (Textual) [Abstract]
Expiration of non-cancellable operating leases	through 2022
Rent expense under operating leases	$ 0.6	$ 0.7
Incentives per square feet	40.00
Incentives for improvements to space	2.2
Lease agreement term	10 years
Amount received to start up new facility			$ 1.0
Minimum number of people to be employed	232
Time period to meet employment commitment	3 years