Segment Reporting (Reconciliation of Reportable Segment Operating Income (Loss)) (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
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income (loss)	$ (1,325)	$ (1,512)	$ (2,767)	$ (2,664)
Severance charges	0	216	108	216
Non-recurring transaction costs	241	0	398	0
Depreciation and amortization	215	212	393	423
Non-cash stock-based compensation expense	123	76	197	153
Interest expense (income)	13	(7)	9	(15)
Loss before income taxes	(1,338)	(1,505)	(2,776)	(2,649)
Operating segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income (loss)	295	(108)	251	(28)
Shared Services
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income (loss)	$ 1,041	$ 900	$ 1,922	$ 1,844