Savings Plan (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Matching contributions to savings plan charged to expense [Abstract]
Company matching contributions	$ 0	$ 6	$ 29	$ 19
Employer match percentage (in hundredths)	33.00%	33.00%	33.00%	33.00%