Segment Reporting (Reconciliation of Reportable Segment Operating Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income (loss)	$ (1,628)	$ (858)	$ (4,396)	$ (3,522)
Severance charges	0	0	108	216
Non-recurring transactions costs	73	50	471	50
Interest expense (income)	52	(6)	61	(21)
Depreciation and amortization expense	235	192	628	615
Non-cash stock-based compensation expense	169	68	366	220
Other	38	0	38	0
Loss before income taxes	(1,680)	(852)	(4,457)	(3,501)
Operating segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income (loss)	429	208	677	179
Shared Services
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income (loss)	$ 1,542	$ 756	$ 3,462	$ 2,600