Commitments and Contingencies Future minimum lease payments for Operating Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Future Minimum Payments for Operating Leases
2016	$ 835
2017	917
2018	818
2019	397
Operating Leases, Future Minimum Payments Due	2,967
Deferred Rent Credit	112	$ 180
Deferred Rent Credit, Current	15	32
Rent expense	1,260	1,483	$ 1,527
Sublease rentals	(685)	(202)	0
Rent expense included in discontinued operations	0	(160)	(145)
Rent expense, net	$ 575	$ 1,121	$ 1,382