Stock Based Compensation (Details 1) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
2007 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expenses paid with stock, restricted stock and stock options	$ 1,224	$ 103
401(k) Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expenses paid with stock, restricted stock and stock options	365	292
2010 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expenses paid with stock, restricted stock and stock options	44
Stock Plans
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expenses paid with stock, restricted stock and stock options	$ 27