Benefit Plans, Share-based Compensation Stock Option by Exercise Price Range (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
401(k) Plan [Abstract]
Maximum percentage of compensation employees may defer (in hundredths)	50.00%
Total matching contribution	$ 173	$ 153
Employer maximum contribution to plan (in hundredths)	2.00%
Safe harbor non-elective contribution (in hundredths)	3.00%
Safe harbor non-elective contribution	$ 369	$ 302